Blakestevens10916

love to get schooled on this topic and also what do you guys think about mcloud clutches

nerz

I'm sure the topic has been beaten to death before but my 619whp build is still on the stock clutch and it doesn't slip at all no matter what gear I'm pulling in. However, I am NOT going to put on my drag radials and expect the same results. I have a McLeod RXT clutch in my garage waiting to get installed once the stock gives out.

RamAir972003

On stock tires infinity but once you start hooking maybe 3 passes then it burns up trust me there's no room for error once you start modding I say 525 to wheels on drags....I went with a spec 3plus single I'm at 565 520 torque holding up ok....

08mojo

I was running the stock clutch and making right at 550hp to the wheels. The stock clutch would hold the power, but it would not handle any mistakes or even the slightest hint of abuse. If you only street the car, the stock clutch will handle quite a bit of power. If you plan to track the car, I'd start looking for another setup.

AzDave47

The stock clutch with power should hold up fine for road course work as well as that does not involve launches where slipping the clutch is required for the best launch. My 600HP machine has a McLeod RXT and it works well. I haven't done hard digs with DRs but on 40 MPH roll it hooks fine.

MikeSVT04

Around 540rwhp and 530tq on a 75 shot and drag radials. She holds everything I give her on the street. Had a 100 shot on and around 580 tq, I don't think it would last long at that tq. The TQ is what kills it.



2010 Mn6 GS, same clutch as the Z06.

Unreal

Depends on tires, power, driver, etc etc.

Anywhere from nearly forever to 1 pass.

butch353

also follow the directions that they send with the clutch. when they say put 500 mile of city driving that is a lot of shifting but it works as it seats the faces together.

Blakestevens10916

Thanks yous guys

EdsC6Z06

550 RWHP here. Bone stock clutch. Stopped drag racing years ago, but do several HPDE days per year with no issues. Drive it hard on the street at times but all good. I doubt it would hold up to full on hard launches at its current power which is why I've avoided the 1/4 mile days for now.

Mordeth

Mine gave out recently. Car is a road course car, driven 10/10ths at WGI on sticky tires. 570/520. Stocker simply can't hold up very long to repeated abuse. Which is normal and to be expected, as it is a wear item anyhow not designed for what I'm doing. If you are lugging it around town on regular tires and avoiding hard launches it will last almost forever under 600rwhp.

kbreese

How are you guys making so much torque? What is your setup?

AzDave47

A good cam with torque, MSD intake,NW102 TB, ported heads and headers. My 1 7/8" Pfadt Tri-Y headers generate low torque and moved the power peak up high (7100 rpm peak power). I have a lighter billet steel flywheel, but not as light as an aluminum one as I was looking for street drivability as well as strong power.

Here is my build: https://www.corvetteforum.com/forums...sd-intake.html

I will probably put in ARH headers and ID 850 injectors later this year. That should get my torque up into the 520 range and move my power peak down into the 6600 RPM range which will help my 200 MPH runs.

Unreal

510-530 or more is pretty common these days. As Dave said, proper cam and supporting mods.

Then again doing 500-510 on stock cam is easy these days too.

kbreese

Well I'd like to think my cam was "proper" as I went to Geoff @ ESP for a custom cam specifically for my setup.

Granted it's a baby cam but it has the supporting mods of PRC heads, Haltech intake, Kooks LT's & X-pipe. The only thing I don't have is a FAST/MSD or TB, and my peak tq was 484.

You are saying 500-510 is easy with a stock cam? lol.

Personally, I think there are a lot of happy dyno's out there.

AzDave47

As reported on this forum, Dynojet dynos have varied on stock LS7s from as low as 425 rwhp to 475 rwhp, so yes all over the place. That is why it is valuable to do a before/after dyno run to see what you actually got from the mods. I did all my mods at once and picked up 133 rwhp SAE Smoothing 0 on the same dyno within two weeks of each other, both in hot conditions ~90*+-. I have the files and with Smoothing 5 it dropped 5-6 hp.

kbreese

Yeah I hear you man. I remember the one member here with a H/C/I C6Z posted a HUGE difference from one dyno to the next. Same exact car and mods. I'd love to do some roll races in Mexico with a lot of you guys with some of these bigger numbers, or even better vs the guys with Bolt-ons only that apparently have the same dyno numbers as me. Not as a cocky thing, or that I'd think I'd win, but just to see how the cars compares in the real world instead of on a dyno.

Unreal

Yes 500-510 with a stock cam is BEYOND easy.

My car dynoed 444rwhp bone stock. Haltech original old school KB1 intake, LG headers, tune made 490rwhp. 3 mods total. No intake, no TB, nothing else that can easily bump a stock cam car into the 500s.

zx12rider

Almost 650hp with stock clutch, and no major issues. Car is driven aggressively on the street with some 1/2 mile roll racing events, but I won't do any trips to the dragstrip until I upgrade to a Mantic twin. Only issue I have is sometimes the clutch pedal returns half way up when doing the 1/2 mile racing... never happened on the street. But I think this is mainly an issue with the crappy clutch master cylinders on these cars.

MTPZ06

Didn't realize that...you're missing out on some decent gains. I'd at least try to find a used FAST for a good deal (especially if ported by a known source).