MAXIMUM HP FOR T56&10BOLT??
Thread Starter
Teching In
Joined: Aug 2002
Posts: 32
Likes: 0
From: huntington west virginia
MAXIMUM HP FOR T56&10BOLT?? I am wondering how much each the t56 and the factory 10 bolt with a richmond gear will hold. Which will hold more power. I am going to build a 375" 6.0. also looking for cam ideas for motor, anyone with a 375 please give ideas,dyno results, track times.
<small>[ August 27, 2002, 09:16 AM: Message edited by: chevyracing1069 ]</small>
<small>[ August 27, 2002, 09:16 AM: Message edited by: chevyracing1069 ]</small>
TECH Resident
Joined: Dec 2001
Posts: 777
Likes: 0
From: Mentor, Ohio
Re: MAXIMUM HP FOR T56&10BOLT?? First off stock cars with sticky tires and a good clutch will destroy the 10 bolt! The trans should be ok. There are guys running 500-650RWHP with the T-56 trans, the clutch is a different story though! Your first mods should be a good clutch and either a 12 bolt or 9 inch. I destroyed my 10 bolt with 360RWHP on my goodyear eagle F1s on the highway shifting to 4th, mind you! I learned the hardway, take it from me, upgrade your drivetrain BEFORE you up the power, or your car will be sitting broken until you can come up with $500-$1000 for a clutch and $1800-$3000 for a rearend!
Re: MAXIMUM HP FOR T56&10BOLT?? Despite popular opinion some guys seem to make a 10 bolt last. My buddy has a Procharged 383 LT1 Trans Am with a stock 10 bolt. He uses Nitto Drag Radials and the thing is still in one piece. I fragged mine with slicks within a few passes. There are a few 10 second cars on stock 10 bolts. But I wouldnt wager on how long the rearends will last.
To answer your question realisticly:
400 rwhp with stock radials and stock clutch
350 rwhp with Nitto/BFG drag radials and stck clutch
Slicks and an aftermarket clutch-Kablooie!!
Now this is just my opinion, hardly scientific. Just based on what I've heard from other Fbody guys at the track. There are a few mutant rearends out there that seem indestructable as long as you dont go over a 3.73 gear. 4.10's are the kiss of death due to the smaller teeth. Plan on buying a 12 bolt or a 9 inch.
To answer your question realisticly:
400 rwhp with stock radials and stock clutch
350 rwhp with Nitto/BFG drag radials and stck clutch
Slicks and an aftermarket clutch-Kablooie!!
Now this is just my opinion, hardly scientific. Just based on what I've heard from other Fbody guys at the track. There are a few mutant rearends out there that seem indestructable as long as you dont go over a 3.73 gear. 4.10's are the kiss of death due to the smaller teeth. Plan on buying a 12 bolt or a 9 inch.
TECH Enthusiast
Joined: Nov 2001
Posts: 620
Likes: 0
From: IL
Re: MAXIMUM HP FOR T56&10BOLT?? Stock 10-Bolts don't like 6 speed cars, especially if they're making lots of power.
The majority of 6 speed guys end up breaking them after they add just bolt ons and a cam. Throwing a big cube motor at the 10-Bolt and stock clutch is a joke. First launch on slicks or even a drag radial for that matter, and the rearends gonna make its exit.
Now some are lucky. By some, I pretty much mean the A4 guys. The automatic transmission doesn't put as much "shock" thru the rearend, and thats how they get away with retaining the factory 10-Bolt for a while longer.
The majority of 6 speed guys end up breaking them after they add just bolt ons and a cam. Throwing a big cube motor at the 10-Bolt and stock clutch is a joke. First launch on slicks or even a drag radial for that matter, and the rearends gonna make its exit.
Now some are lucky. By some, I pretty much mean the A4 guys. The automatic transmission doesn't put as much "shock" thru the rearend, and thats how they get away with retaining the factory 10-Bolt for a while longer.
Staging Lane
Joined: Aug 2002
Posts: 77
Likes: 0
From: san antonio - texas
Re: MAXIMUM HP FOR T56&10BOLT?? i have seen cars run 10's on the stock clutch and rearend but they are not the majority . the trans is a fairly beefy unit but can be blown to pieces with the right guy behind the wheel.save your cash and get the 12bolt and a good star stage 3 or 4 clutch , mccleod master cylinder and 2002 slave and you should be fine.
The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Re: MAXIMUM HP FOR T56&10BOLT?? You would be one of a few that would keep it together if you could. So far I've fragged a clutch, exploded the driveshaft, and sheared 100 teeth out of the Torsen. That's just launching with Nitto's. I fragged the Torsen on the street!
So, I now have a McLeod single disk (for now), a steel driveshaft and as of last weekend a Moser 12 bolt. Yeah it's 3k but it's built like a tank. Short of having the T56 cryod and race prepped it should be damn strong on a hooking track. Yesterday at the track I couldn't even launch on the Nitto's this setup now lights those tires up like crazy! Time to go to a 10" tire!!! <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
So, I now have a McLeod single disk (for now), a steel driveshaft and as of last weekend a Moser 12 bolt. Yeah it's 3k but it's built like a tank. Short of having the T56 cryod and race prepped it should be damn strong on a hooking track. Yesterday at the track I couldn't even launch on the Nitto's this setup now lights those tires up like crazy! Time to go to a 10" tire!!! <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
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TECH Apprentice
Joined: Jan 2002
Posts: 343
Likes: 0
From: san diego
Re: MAXIMUM HP FOR T56&10BOLT?? my rear end has been rebuilt 4 times under warranty and that was when I was running on street tires. Haven't had problems with the rear end with the nittos but I know its on borrowed time so in feb. I am gonna get a 12 bolt with my tax refund.
Fried the stock clutch the other day and I thought I broke it because I had no forward momentum but it turns out on top of frying the clutch I snapped the output shaft on the tranny. I know these trannies are pretty strong but mine must have had some sort of defect if the output shaft snapped with what little power I am pushing. Also with the slipping clutch it wasn't putting a full load on the tranny.
Fried the stock clutch the other day and I thought I broke it because I had no forward momentum but it turns out on top of frying the clutch I snapped the output shaft on the tranny. I know these trannies are pretty strong but mine must have had some sort of defect if the output shaft snapped with what little power I am pushing. Also with the slipping clutch it wasn't putting a full load on the tranny.
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