Just got off the W2W Engine Dyno and....
Originally Posted by Reckless
Here are the numbers Tom:
Great results! Two questions. 1. How far have you pushed stock GM MLS gaskets? 2. On a set up like mine, how much hp is lost through the drive line? I know the converter makes a big difference. It feels too loose, but I'm going to try it a the track first. Andy.
Running on track Tom will probably shift between 82-8500rpm with this engine. I need to exceed the high data point by 2-300 rpm to get clean pulls. Doing this kills valvesprings quickly if you want data to 8500, so for tuning we try to stop once the torque rolls over. If the head gaskets would have held, I'm sure a 8000rpm run would have been done.
Kurt
Kurt
Originally Posted by LTLHOMER
Is it going to spin more than 7500 on the track? Torque was still barely falling off at that point figured you'd want her up even higher.
Badass motor though for sure.
Badass motor though for sure.
Originally Posted by 427
Running on track Tom will probably shift between 82-8500rpm with this engine. I need to exceed the high data point by 2-300 rpm to get clean pulls. Doing this kills valvesprings quickly if you want data to 8500, so for tuning we try to stop once the torque rolls over. If the head gaskets would have held, I'm sure a 8000rpm run would have been done.
Kurt
Kurt
Congrats on building a badass weapon!
Now if you can only convince Tom to let ya get behind the wheel.
Oh yeah what does '3 turns in gate' stand for?
We have seen the same sort of numbers with a big block chevy with the standard Cometic gaskets. We had them hold up to 2700hp with a aftermarket aluminum head/block combo. The LS engine with aftermarket heads and factory block did not hold for repeated runs, although this was the nitrogen ring Cometics instead of the standard MLS. We will send them back and see what the Cometic guys think caused the failure.
Kurt
Kurt
Originally Posted by 8seclt1
im really surprised at this statement as John Gullet's pro5.0 motor made over 2200hp and has run 6.30s @ 220+... he runs cometics without a problem... same with a number of Pro 5.0 and Outlaw guys..
1.The MLS is a great gasket, but we have never been above 1200 with reliable results.
2. Not sure of your losses, but we have seen as high as 25% with loose converters. Loose converters are easy to drive, they make boost quickly.
Kurt
2. Not sure of your losses, but we have seen as high as 25% with loose converters. Loose converters are easy to drive, they make boost quickly.
Kurt
Originally Posted by LASTLS1
Great results! Two questions. 1. How far have you pushed stock GM MLS gaskets? 2. On a set up like mine, how much hp is lost through the drive line? I know the converter makes a big difference. It feels too loose, but I'm going to try it a the track first. Andy.
8 Second Club
Joined: Dec 2002
Posts: 557
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From: detroit, Mi
Great job W2W. I think a large number of people are starting to realize that you can pay a little more the 1st time at W2W and actually save $$ in the long run with a quality piece that will last and people that will stand behind a product. In my opinion W2W= Best in the LS1 business.
Matt
Matt
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Originally Posted by matt346ls1
Great job W2W. I think a large number of people are starting to realize that you can pay a little more the 1st time at W2W and actually save $$ in the long run with a quality piece that will last and people that will stand behind a product. In my opinion W2W= Best in the LS1 business.
Matt
Matt
TECH Enthusiast
Joined: Jan 2004
Posts: 633
Likes: 1
From: Detroit,MI
Originally Posted by Reckless
Next is o-ring, receiver groove, and copper head gaskets. I will post numbers tonight.
Originally Posted by Uthinkso
Did you cut the groove in the head and run a gasket with integrated o-ring? Curious of the set-up.
Originally Posted by Boostaholic
thx - if you want the program to generate the graphs I could package it up pretty easy, all you have to do is type in the data for each data point.
Cool graph though! Great power. Great job everyone..
__________________
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
