In '03 the stock Duramax advertised torque was 520 ft/lbs at 1,800 RPM. The torque curve was flat all the way to the 3,000 redline. The Allison could only handle an additional 100HP gain safely, thus the $5,000 figure when one was adding serious HP. This is all based on my '03, the newer engines put out significantly more HP and torque.So let's talk about 'high horsepower' being applied to the 4L80-E. Using my 290hp L29 as an example, while I *can* make more horsepower on pump gas, if I want my *stock* 4L80-E to stay reliable, then I must walk the torque tightrope carefully. Let me explain. Making 1 ft/lb of torque per cubic inch on pump gas while meeting emissions is a ...05RoushMarkLT. You won't be able to run more than about 12lbs of boost without rebuilding the lower end. From pretty much every source I've asked, around 450RWHP and 500RWTQ is what the stock motor will handle. Lots of folks are in the 400RWHP range now running between 9-10lbs of boost, some with headers and some without.but i did find a good combination for $10,500. Should get me a safe 700-800HP crank: Crate Engine: LSX376 by GMPerformanceparts.com website , 9:1 compression ratio, forged, 450HP before boost $5000. Supercharger: A&A 1997-2004 Corvette Vortech Supercharger Kit with fuel upgrades $5500.I destroyed my stock 3.73 non-posi rear end at 4400elevation with a 353 corrected rwhp car. At that elevation it was probably closer to 290 crank hp. The stickiest tires I ever had on it were 275 BFG drag radials. Last edited by Dark Ember; 09/30/10 05:47 PM . 88'SS Installing: 355 w/8.3:1 comp. expecting 440hp.First is how much can the LLY engine put out without the listed problems. The answer depends on how long. Without engine work, the stock LLY can put out ~500rwhp. How long at that level before you have problems? I think the jury is still out. There are guys that have been doing it for 80K miles or more without engine problems.the dmax van has the 4l85e in it stock. an 'upgraded' 4l80. dont know what you are planning for hp, but the van is very detuned. 250hp/460tq from the factory.There's not really a 'max' number, but around 650-700 hp. How much HP can a stock Mustang transmission handle? The stock 6r80 can handle 600-650 HP for a long time. ... How much HP can a stock 5.0 handle? But the "experts" say the stock powdered metal connecting rods won't handle much over 600-650 rwhp.No solid answer on this one really. My 06 has 130k on it and makes 740 on fuel and north of 800 on a small shot of nitrous. My 03 is still stock bottom end and makes over 1k but its not a daily driver. Have seen built bottom ends come apart at 800 hp to north of 1k. 06 (Super Diesel) Silver,sport,QC,2500,4x4.Aug 8, 2013 · The addition of electronic control and overdrive adds roughly 50 pounds and a slight amount of width over a TH400, but for the most part, any floorpan that can accommodate a TH400 can also fit a ... 66GT289. 654 posts · Joined 2001. #10 · Jan 14, 2007. The real answer is North of 550 HP. The Trans Am Boss 302 engines used the. OE block and they were at least 460 hp. There was a guy in San Diego (Scott Sloat) who ran a Tiger with a Boss 302 and twin. turbos in the late 80's.GeneralTJI. Not a huge deal, but EFI isn't a "chip" btw. As posted above, your tranny will fail long before the motor. To answer your question, ~650 real HP to the wheels is where thing's start to get scary on a stock motor. There are those who have gone beyond... a lot depends on the turbo setup and tuning.THere is no one size fits all threshold because there is no one size fits all affect. A perfect balanced turbo 302 engine that never saw above 5000 RPM would probably hold up pretty well to about 550 reliably. Now the average massive weight crap balance NA engine typically sheets itself around 6500 RPM and 450hp.Generally speaking, the 4L80E will be able to live well with up to 450 flywheel horsepower and torque without any modifications; however, when exceeding this point additional …So you have 300 HP now and put 12 psi on it you would use the formula (12/17psi)300+300= total FLYWHEEL HP which is just above 500HP. To get 600 FWHP from a 300 HP engine you would need the indicated 17psi. Again, the more you make the supercharger work, the less efficient it will be.459 posts · Joined 2010. #17 · Apr 17, 2015. im on a stock tranny and the limit to the tranny is 14 lbs of boost 400-500 hp. 1994 Toyota Supra Greddy t78. conversion, a stage 2 Transmission away from 700hp.I wouldn't never push past 400 on the stock trans, and wouldn't launch it at those power levels. The stock engine can easily handle anything the stock turbo can do. You won't run into engine problems sub 500 whp. I just haven't seen anyone blow up an fa24 like that yet.BillyGman. 15307 posts · Joined 2005. #4 · Oct 30, 2016. As it's already been mentioned, a stock factory frame will handle even 1,000 HP if the only use will be on the street with standard radial tires, since the tires will spin all over the place in …How much power a stock 351W can handle greatly varies. First, you have to choose a block, then go from there. The '69 is the best. Also, it depends on whether you going n/a or power adder. A power adder setup can handle more power because it generally turns less rpm. In other words, a 550rwhp forced induction will live longer than an n/a engine ...In '03 the stock Duramax advertised torque was 520 ft/lbs at 1,800 RPM. The torque curve was flat all the way to the 3,000 redline. The Allison could only handle an additional 100HP gain safely, thus the $5,000 figure when one was adding serious HP. This is all based on my '03, the newer engines put out significantly more HP and torque.Here we go. As far as the first questions as to how much boost can you safely push. Well there have been guys pushing 30+ psi on stock everything and ran for quite some time. There have also been guys that pop a head gasket at 20 psi even with a decent tune.Never had it on a dyno but the race weight with driver is 4500 lbs. Traps 118 MPH in the 1/8th and 148 MPH in the 1/4. Using a stock 4L80E with no transbrake.As said detonation is the killer. Built several claimer dirt mod motors with them. 500-575hp spinning 6800-7200rpm, but that was on methanol. One thing to remember is that they require a larger end gap on the top ring. They hold a ton more heat in the top of the piston because of the over saturation of silicone.I destroyed my stock 3.73 non-posi rear end at 4400elevation with a 353 corrected rwhp car. At that elevation it was probably closer to 290 crank hp. The stickiest tires I ever had on it were 275 BFG drag radials. Last edited by Dark Ember; 09/30/10 05:47 PM . 88'SS Installing: 355 w/8.3:1 comp. expecting 440hp.How much power can a stock 4L80E safely handle, before upgrades are needed? ... up running 500 or 600 horsepower. I think I saw one with a truck that had around 700 ...This is done with a diff ratio of 3.29 and a sprocket ratio of .89 (33 teeth/37 teeth). 3.29 or 3.69 gearing is accomplished by leaving the diff alone and changing the sprocket ratio to 1.00 (35/35) and 1.12 (37/35) respectively. Most people change their gearing at the same time they upgrade the chain.How much HP can a stock rearend handle. My 327 is putting out about 350 HP. Running a Tremec 5 speed with 3.73 stock posi. In my younger days I would break axles not the rearend in my 63 Impala with same amount of HP but I had an automatic in the car. I know of the aftermarket posi units but does anyone make aftermarket axles for our trifives?In like 2002 the drives were beefed up a bit. I know a guy running 600HP through a stock 2003 Bravo 1 for 3 years and he does not baby it. It is on a much smaller boat though. If I were in your shoes, I'd buy a spare drive. They can be had for $1500-$2000 and it's good insurance as to not loose much boating time.1327 posts · Joined 2011. #6 · Nov 16, 2015. The 6r140 trans is quite a bit better than the 5r110. H&S pushed their shop 2011 6.7L with stock 6r140 to 9**hp and over 1700ft/tq. In their breaking point test. Trans slipped for very short time, then TC locked and trans never slipped again.At 700+ HP I would upgrade to a 4 clutch intermediate and 6 clutch direct. Stock steels. 4L80E Hi Energy frictions. Use a good full manual VB or t-brake or if you desire automatic function study up on "dual feeding" and eliminating third gear cutback. Stock shafts will work, pretty much good attention to detail on the build.My 500"/440 using 440 Source crank and rods, Ross pistons and a Pro-Gram 4-bolt main conversion has progressively gone 750, 850 & 928 horsepower. The 451 stroker with a factory 440 forged crank, Scat H-beam rods, Ross pistons, stock main caps and ARP main studs has hundreds of pulls from 621-787 horsepower.I destroyed my stock 3.73 non-posi rear end at 4400elevation with a 353 corrected rwhp car. At that elevation it was probably closer to 290 crank hp. The stickiest tires I ever had on it were 275 BFG drag radials. Last edited by Dark Ember; 09/30/10 05:47 PM . 88'SS Installing: 355 w/8.3:1 comp. expecting 440hp.The basic 250-horse-capable 2004R transmission begins at about $1,600 without extras, plus shipping. A 400-horsepower version begins at $1,799 without any extras (plus shipping). The 800 ...HP: Get the latest Helmerich & Payne stock price and detailed information including HP news, historical charts and realtime prices. Indices Commodities Currencies StocksHow much horsepower can a 4l80e handle. If you have any questions feel free to call 1-888-744-6542, or email us at We also have Live Chat during business hours; located in lower right corner of this webpage. ... How Much Hp Can A Stock 4L60E Handle. You have the option of settling for a forward clutch apply pistons that are made of steel or ...Gregg Nader. 700-R4 (4L60) Performance Transmission. Introduced in 1982, the 4-speed Overdrive GM 700-R4 transmission — also known as the 4L60 — remains a popular option for street/strip performance applications. Most of the unit's internal components are shared with the '93-later 4L60-E, which was regularly improved/revised up through ...With our minds shifted into heavy-duty overdrive, we made a call to Monster Transmission to get our hands on a complete 4L80E Monster in a Box rebuild and shift kit. We also sourced Monster ...Something you can beat the snot out of without giving it or you a runny nose. It will soon be the trans of choice for vehicles that have weight and horsepower. It just gets comfortable at about 900 HP and will handle a lot more with just a few special parts. Hang onto your hat." "We have a Stick Shift version too!" 4L80E-HD2-D Reprogramming ...It is a Turbo 400 with a .75 overdrive. All functions are elctronically controlled. ... They can be built to handle 1,000hp with the right parts.its not really how much "it" can handle but how much you can. Ive raced circle track cars with 400+hp with Muncie trannys and theve been just fine. it really comes down to how you treat it, drop clutching speed shifting, you can break it with a mear 300. just treat it nice and you should have no problem with 400-600hpHow much hp can a stock tranny handle? May 24, 2010 #2 N. nicostang Member. Joined Apr 15, 2010 Messages 118 Reaction score 0. clutches usually go out before the T5. I am not sure but i would say 450-500 is the T5 limit, but the clutch usually dies way before that. May 24, 2010 #3 OP . OP. 9. 94califiveoh Member. JoinedOur custom, hand-built high performance transmissions can handle up to 1200 horsepower, 1000 ft-lbs of torque, and are built with the highest quality parts available. ... GM 4L80E Performance Transmission Level 2 $ 3,995.00 $ 3,995.00 Add to cart-GM 4L80E Performance Transmission Level 3 $ 4,995.00May 27, 2013 · Hard Driver. 636 posts · Joined 2010. #9 · May 29, 2013. For that kind of money you should be able to buy an 8.5 S rearend with limited slip and maybe disc .The 7.5 / 7.6 will not hold up under prolong pounding from a strong V8. S10 blazer 85 2dr 2wd sbc,200 4r trans. 8.5" 3:42 disc brake rear. 1298 posts · Joined 2005. #5 · Jul 15, 2009. IMHO it all depends on how you drive it. If you drive it like you stole it then it can be taken out with stock to 400HP. If taken care of an not romped daily then it should be fine to 500HP. 2006 Dark Slate F350 CC LB 6X6 Lariat Tow Boss Complete with training wheels.Feb 15, 2017 · 3431 posts · Joined 2009. #2 · Feb 15, 2017 (Edited) I've read a stock 700r4 can handle 350 lb-ft of torque. But some were rated higher depending on it's application. 1989 was not a high horsepower maybe 230 or torque motor if I recall correctly. You could just have that trans freshened up to handle new motor. Jan 17, 2024 · A stock th400 can handle between 400- 450 horsepower: A stock th350 can handle between 315- 400 horsepower : Gear ratios: 2.48, 2.08, 1.0: Gear ratios: 2.52, 1.52, 1.0: A stock th400 costs about $1600, though it can be less if you buy a used Th400 or rebuild. A stock th350 costs about $1200, though it can be less if you are buying a used Th400 ... 4765 posts · Joined 2008. #4 · Aug 6, 2010. Agree with the above posts and I'll even put a rwhp number to it: 250. Some bone stock trucks have blown their HG's and I know of some running over 400 rwhp on factory head bolts with no issues. Truckless .Then it can only handle the stock power. Any more will cause premature failure and that failure is only determine on your driving style. ... When the tech came out to talk to me he said "your running too much HP and torque, you need an aftermarket tranny" The 2-4 clutch pack was fried. 2009 6.7 QC 4x4, Carli 2.65 radius arm and sway bar kit,AMP ...As I know, a stock 390 block should be able to handle around 400-450 horsepower and around 450-500 lb-ft of torque without any major modifications or risk of failure. With proper upgrades and modifications, it's possible to increase the horsepower and torque output beyond these levels. pizza tower. Like.Oct 26, 2010 ... with that being said, if you dont care about having an overdrive gear or a locking converter, go with the TH400. Though you can get a locking ...Lower the PE throttle enable from 87-90% down to 60%, raise the MAP kpa to 80kpa, lower the enable torque (if there) to 80%. Look at your EQ ratio and see what it's commanding. Aim for low 12's AFR. Should be around 1.200 for good starting point. In the torque mngt tab, there are a few tables you can raise.#1 · Nov 1, 2007. I want to know how much tq/hp a 4L80E is capable of handling... and I don't mean in race trim once a week, I mean in daily-driver street duty. I have a duramax diesel project that (depending on how I tune it) can make anywhere from 250hp/550tq up to 500hp/900tq.GeneralTJI. Not a huge deal, but EFI isn't a "chip" btw. As posted above, your tranny will fail long before the motor. To answer your question, ~650 real HP to the wheels is where thing's start to get scary on a stock motor. There are those who have gone beyond... a lot depends on the turbo setup and tuning.How much HP can a 4L80E handle stock? To answer the question of how much power a 4L80E can handle, it is important to first understand what kind of unit we are talking about. A stock unit or rebuild of this type of transmission will typically have enough strength and durability to last with up to 450 flywheel horsepower and torque.86 posts · Joined 2008. #2 · May 6, 2008. The pre-1982 blocks will supposedly handle up to 750hp at the crankshaft, but I'd use a steel billet main stud girdle, as I did on my own 302. The blocks produced in 1982 and newer are about 40 lbs lighter to help the Fox body cars handle better, and much of the weight savings came from reducing the ...How much power can the 4L80E handle? A totally stock unit or rebuild will typically live well with up to 450 flywheel HP/TQ. Above this point the direct clutches will not live long without some hydraulic improvements.3431 posts · Joined 2009. #2 · Feb 15, 2017 (Edited) I've read a stock 700r4 can handle 350 lb-ft of torque. But some were rated higher depending on it's application. 1989 was not a high horsepower maybe 230 or torque motor if I recall correctly. You could just have that trans freshened up to handle new motor.How much horsepower can a fj60 handle?How much horsepower does a supercharger add? 6 essential things to know about horsepowerJust picked up a 4l80e. Cummins 6btTorque handle building power Horsepower koenigsegg one1Transmission 2wd 750hp ss 4l80.HPE: Get the latest Hewlett Packard Enterprise stock price and detailed information including HPE news, historical charts and realtime prices. Gainers Aridis Pharmaceuticals, Inc. ...I did the calculations and came up with 30.8 lb/min of airflow at a pressure ratio of 1.76 at 7200 RPM. This is between the 72% and 74% efficiency lines on the right side of the compressor map for the turbo. At 5250 RPM the airflow is 22.5 lb/min at 1.76. This point is on the inner-most 80+% efficiency island.2850 posts · Joined 2010. #3 · Apr 22, 2017. my stock trans with a shift kit held a little over 300whp with a 2600 stall converter for 2 years. when i did my rebuild i was making just a little over 400whp on a patc level4 kit. i did end up getting come codes and pressure issues with my pcm that limited me to pushing the trans to its full ...Re: how much can a 3970010 block handle, it has the 010 high nickel casting. From what I've been able to gather a factory block is usually safe (with good prep, splayed 4 bolt caps, etc) to 600 horse. Have heard of a few that have gone to 700 or more, but it starts getting risky IMO over 600. Somewhere above 600 the factory blocks can split and ...Sep 6, 2002 ... John, neither the 4L80E nor the T56 will handle large amounts of power (550+). I'm sorry to tell you that the only viable option is a TH400 ...Add up all those charges and compare to what a new set of rods cost. For me it was cheaper to buy new rods then to try and rebuild the old ones. But yes the stock rods will take a lot more than 450 HP...I had a 400 with 5.7 stock rods in it years ago with lots of nitrous that made about 600 hp no rod problems. Like.How much HP can 4L80E take? When it comes to high performance transmissions, Performance Automatic has a proud history of delivering beyond expectations. Their 4L80E transmission is no exception. Engineered and built with the highest quality parts available, this transmission can handle more than 700 horsepower and comparable torque levels. The ...An Error Occurred. Parking is currently unavailable. We'll be right back.Oct 26, 2010 ... with that being said, if you dont care about having an overdrive gear or a locking converter, go with the TH400. Though you can get a locking ...Not too many people are breaking built 4R70Ws. Mine really isn't a stock V6 tranny - it was built to Jerry W. spec by a shop he uses. But the '99 and up V6 4R70Ws are not too far behind in their ability to take power. 95 Lightning - Slow. 95 Convertible 357 turbo. 10.5/135 @ 3800#. SCT Tuned.should handle 140 ft-lb forever no problem. Torque kills, not HP If it is ACTUALLY a 69' model trans then it will have the weaker diff compared to mid-70's trans, so if rebuilt then get the later stronger diff and "welded" 3rd and 4th gears the later model SSC trans has been known to handle 180 ft-lb and sometimes over 200 HP without ...These stock LT4 cams really do no like rpm, they're even worse on the stock blower. Heres some data: **All tests completed at 4000ft altitude, DA changed but dyno is using SAE correction. This is my final run for all 3 configurations: Green: 90mm upper, stock lower: 14.5psi at 6500rpm, 24deg. 8psi at 3000rpm.Tuning is key and keeping rail pressure in check to make power. I don't know of any 700HP stock CP3 trucks (not doubting it all) but I have seen some 670ish HP stock CP3 trucks. Even those are few and far between. 2017 RCSB F150 5.0 - On3 Twin Turbo, Fore Fuel System, Boss 302, FIC 1300's, E85. Sold: 2012 CCSB 2500 4x4, 2003 2500 QCSB 4x4 881/1443.How much horsepower can a fj60 handle?How much horsepower does a supercharger add? 6 essential things to know about horsepowerJust picked up a 4l80e. Cummins 6btTorque handle building power Horsepower koenigsegg one1Transmission 2wd 750hp ss 4l80.The most exteme case I know of is a twin blower front enigne dragster. It is a 406 stock block with a cast crank. In excess of 400 passes. 1200HP. You can push a stock block to around 600HP. After that aftermarket caps are needed to keep the caps from moving. Anything over 700HP you are really pushing the limits. . .but there are exceptions. Chris23.The Stage 3 Black Edition 4L60E (rated to over 1,000 horsepower) pencils out around $4,800 with a one-year warranty (extended warranties available).With a stock transmission, the 4L60E can handle around 400 horsepower. While the 4L60E can technically handle 700 horsepower, it’s not recommended to push it that hard. Doing so will likely result in premature failure and costly repairs. If you’re looking to get the most out of your 4L60E, stick with around 400 horsepower.Jun 5, 2023 · It is well-known for its durability and many stock 4L60E transmissions can handle up to 425 horsepower due to the heavy-duty internals and the extra-wide bands that are pre-installed. The stock 4L60E is also designed to handle up to 450 lb-ft of torque and can handle up to 600 hp with upgraded components. The basic 250-horse-capable 2004R transmission begins at about $1,600 without extras, plus shipping. A 400-horsepower version begins at $1,799 without any extras (plus shipping). The 800 ...2365 posts · Joined 2006. #3 · Oct 4, 2007. Re: How much horsepower & torque can a stock 5 speed transmission handle? (20VT*J4) So far ive got 363whp on my 5 speed. Only thing done is a Sachs stage II clutch and 14lb flywheel. Im going to roll the 5 speed until it breaks. JTM65.A high-quality TH350 that has been properly built and maintained can easily hold upwards of 1,000 horsepower. However, a lower-quality TH350 or one that has not been properly cared for may only be able to hold half that amount, or even less. Another important factor is the type of engine that is being used. A naturally aspirated engine will not ...The 7.3 Powerstroke can handle up to 250-300 horsepower with a proper tune and other modifications. With only a few basic modifications, such as an upgraded turbo, intercooler, and exhaust, the 7.3 Powerstroke can reach up to 375-400 horsepower. Achieving higher horsepower output requires more modifications such as larger …TCI flexplates are .035-inch thicker than stock and have the correct torque converter bolt pattern. ... This three-speed automatic is built to handle over 750 horsepower and it comes with a trans ...The answer is definitely to get VVTi. Also keep in mind that it's likely high boost (cylinder pressure) that would bend/break rods, so a larger more efficient turbo will help you make safe laggy power (not to be confused with a cheap turbo that makes laggy power because it's inefficient). For example, you could make 500hp with a Garrett G25 ...
Jul 19, 2023 · Some say the 4l80e cant handle much power. I have another 2500 Suburban,6.0 Vortec, stroked to 6.6, then supercharged. Anyone running a stock 4l80e \\ np246 in high HP applications? I know what books say, I am wanting real world knowledge. . Florida anime conventions
How much is a Turbo 400 transmission worth? selling it as a good unit and with a “it will work” or your money back warrantee, it should be worth $150-200. There are many shops that sell a stock rebuilt TH400 for $600…. How much horsepower can a Turbo 350 handle? The TH350 can easily handle 600 lb/ft when properly built.PERFORMANCE 4L80E… supports up to 1000HP. Our PERFORMANCE 4L80E series is ideal for street/strip driving and upgrades from a 4L60E/4L65E platform. It's rated at 1000 RWHP.... Price : $ 5,200.00 Add to cartThe H&S Motorsports 13-18 Dodge 6.7 Cummins is capable of handling up to 150 HP of boost, depending on the modifications you have done to the engine. The stock 6.7 Cummins can handle a moderate amount of boost, such as 20-30 PSI, with the right tuning.First is how much can the LLY engine put out without the listed problems. The answer depends on how long. Without engine work, the stock LLY can put out ~500rwhp. How long at that level before you have problems? I think the jury is still out. There are guys that have been doing it for 80K miles or more without engine problems.59 posts · Joined 2004. #2 · Nov 11, 2004. I ran out of fuel pump on my turbo L36 on a 12.0@115mph run. I popped a piston, which is a common occurance among the boosted L36 and L67 crowd. I've heard of a few cases of thrown rods on L67's but none of them seemed to be from high hp, more than likely an engine defect.0. Oct 31, 2004. #10. so from what i am understanding my trans is not going to last to long after i install this engine. how about AOD from PERFORMANCE AUTOMATIC. The company www.bieberfever.com sells thier trannys. They have an AOD level 3 that can handle up to 550 horses for $1,905.The 4L80E has a max torque rating of 440 lb.-ft. of torque, giving it a max load capacity of 18,000 pounds. The gearing to move such a heavy load is a 2.48 first gear, 1.48 second, 1.00 third, and 0.75 overdrive. These transmissions can be found behind 4.3 to 8.1-liter gas engines and 6.5 to 6.6-liter diesel engines.• 1 yr. ago. Depends on driver, tire, surface, gears, vehicle. The more resistance at the back end the more likely it'll break. Big difference between Slicks and a trans brake on a prepped track vs street tires and a 1800 stall. Lots of guys with 500whp and stock transmissions surviving. 4. Reply. Share. misfit0513. • 1 yr. ago. 650 so far lol. 3.#1 · Mar 12, 2009. Just curious, how much power can a stock 48re handle without a tq/c and vb upgrade? Let's say another 100hp 250tq (example an edge juice w/ att on max …The stock toploader transmission is very stout, with cast iron case. Aluminum case and tailshaft save a lot of weight, but do reduce the durability to some extent. ... Good luck finding how much HP the toploader can handle. First there's both wide and close ratios. However as a FORD guy myself one of Ford's epic fuck-ups is every big block 427 ...2365 posts · Joined 2006. #3 · Oct 4, 2007. Re: How much horsepower & torque can a stock 5 speed transmission handle? (20VT*J4) So far ive got 363whp on my 5 speed. Only thing done is a Sachs stage II clutch and 14lb flywheel. Im going to roll the 5 speed until it breaks. JTM65.How strong is a stock 4L80E? The GM 4L80E Performance Transmission Level 4 is powered with whopping 800 Horse Power. This automatic transmission gear can also generate up to 700 ft. lbs. of torque at a stall level of 2800 to 3400 rpm. ... How much HP can a 4L80 handle? Will a 4L80E handle 500hp?We tune a stock K20 EK with a Precision 6262. The car utilizes DW1000cc injectors, A DW400 fuel pump Hondata K-Pro, Hondata Boost Solenoid among many other p...The 4L80E has a max torque rating of 440 lb.-ft. of torque, giving it a max load capacity of 18,000 pounds. The gearing to move such a heavy load is a 2.48 first gear, 1.48 second, 1.00 third, and 0.75 overdrive. These transmissions can be found behind 4.3 to 8.1-liter gas engines and 6.5 to 6.6-liter diesel engines.I want that the TH350 shifts at 4000RPM, but because boost pressure is set on the vacuum modulator, the TH350 will shift at 5000-5500RPM. I now adjusted the kick down cable and placed a adjustable modulator and it shifts now at 4500RPM at 5.7 psi. When I set the turbo at 7 psi, shift point goes back higher.jetpilot718. 5669 posts · Joined 2004. #2 · Aug 23, 2005. I dont know of anyone changing anything yet.. and also, no one has had any drivetrain issues that this forum is aware of. The number 600whp seems familiar in talking design limits. Like.290-300whp. as for the 500 @ 17psi on a stock bottom end, thats complete bullshit. its plain not physically possible with those rods. and also, thats an extremely low boost level for that hp rating. not possible. if it was, everyone and their mom would be rockin 500whp tegs. i mean, come on. try to be somewhat realistic. did you even read the ...With a stock-type fuel pump and a 1970's TH350 transmission, a great match here would be our 2000-2200 stall converter like PN 109-602. Torque Converter for 1955 Chevy. Or a 1955 Chevy 2 door hardtop which weighs about 3,350 lbs. It's running a 383 engine with 10.5:1 compression, a Comp 292 cam (rough idling hot rod style cam), 4.11 gear ...May 29, 2023 ... ... per his request. We will be improving this transmission to handle the kind of power that he intends to push through this transmission..
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