Question on 3.8 vs 3.6 pulley - CorvetteForum - Chevrolet Corvette Forum Discussion

Notices
C5 Forced Induction/Nitrous C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

Question on 3.8 vs 3.6 pulley

Old 10-27-2018, 03:55 PM
  #1  
tabbruzz
CF Senior Member
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 2,858
Thanked 29 Times in 27 Posts
Default Question on 3.8 vs 3.6 pulley

Guys,

I an looking for at the A&A system right now. My 99 has under 20,000 miles. It's pretty showroom, actually. I added long tube headers, ls6 intake, ported throttle body, 3200 stall converter, cat back exhaust, tuning, its lowered, f14s, aftermarket sway bars. There are other things but those would come off when the sc goes on.
I would like to touch 500rwhp if possible with the supporting mods above. What I am more concerned about is keeping the power level in check to my engine in one piece. I do not plan to go higher then the 500rwhp. I do not want meth. I have 93 octane here in Jersey.
So, what do you guys think I can squeeze out of a standard A&A system or at least what are your experiences? I am told I may be better off with a 3.6 vs the standard 2.8 pulley. With the 3.6 I may see 10 or 11 psi.
Would it be safer to go with the 3.8 at 8 to 9 psi and could I still see 500? I know it has alot to do with the tune and I would want a conservative tune to be "safer".
The car is only a weekend toy and may see the track just to see the 1/4. It may be on drags, but no line lock...
So I am sure I will not get the most out of it, but that's ok..
Oh, one more thing, with the ls6 intake, I have the block offs in the back of the engine for the coolant passages. The ls1 intake had the coolant crossover tube. Is that a major issue as many folks claim that cyl 7 is an issue with the additional power of the sc...
So what do you guys think????

Last edited by tabbruzz; 10-27-2018 at 04:00 PM.
tabbruzz is offline  
The Following User Says Thank You to tabbruzz For This Useful Post:
CorvetteBrent (10-28-2018)
Old 10-28-2018, 02:19 AM
  #2  
ss4luck
CF Senior Member
 
ss4luck's Avatar
 
Member Since: Oct 2008
Location: SoCal
Posts: 298
Thanked 13 Times in 12 Posts
Default

The biggest thing with getting these to live is usually 99% in the tune. I ran a 3.6 with my Ls6 in 91/meth with a cam and was over 650 leaning on it hard.


Boost is also addicting as hell and most dudes end up re pulling to the 3.6 after a few months anyway. My vote is start with the 3.6 if you have a good tuner and just enjoy the extra power vs the 3.8. It shouldn’t really be much of a difference anyway. I know it wasn’t when I went 3.6 to 3.4
ss4luck is offline  
Old 10-28-2018, 10:27 AM
  #3  
tabbruzz
CF Senior Member
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 2,858
Thanked 29 Times in 27 Posts
Default

Originally Posted by ss4luck View Post
The biggest thing with getting these to live is usually 99% in the tune. I ran a 3.6 with my Ls6 in 91/meth with a cam and was over 650 leaning on it hard.


Boost is also addicting as hell and most dudes end up re pulling to the 3.6 after a few months anyway. My vote is start with the 3.6 if you have a good tuner and just enjoy the extra power vs the 3.8. It shouldn’t really be much of a difference anyway. I know it wasn’t when I went 3.6 to 3.4
ok, cool....did you stay with a stock engine for long? Did you have any issues or if you have an auto did you need it upgraded?
tabbruzz is offline  
Old 10-29-2018, 02:07 AM
  #4  
ss4luck
CF Senior Member
 
ss4luck's Avatar
 
Member Since: Oct 2008
Location: SoCal
Posts: 298
Thanked 13 Times in 12 Posts
Default

My motor was boosted for a little over 30K, 15-18 of it on a 3.6 the rest on a 3.4. IT came apart on a 190+ 5th gear pull running an evo in mexico lol. I have a TR6060 so no help with the auto question
ss4luck is offline  
Old 10-29-2018, 07:47 PM
  #5  
tabbruzz
CF Senior Member
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 2,858
Thanked 29 Times in 27 Posts
Default

Originally Posted by ss4luck View Post
My motor was boosted for a little over 30K, 15-18 of it on a 3.6 the rest on a 3.4. IT came apart on a 190+ 5th gear pull running an evo in mexico lol. I have a TR6060 so no help with the auto question
that sucks...was the engine stock? Well, u guess not if you were goib hgv over 190...lol
tabbruzz is offline  
Old 11-01-2018, 10:13 AM
  #6  
Avs126
Junior Member
 
Member Since: Sep 2018
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I have an 04 with the 3.8 pulley and 60 lb injectors. The only other mods is a full exhaust with no cats. Dyno’d at 524 whp. I’ll be switching to the 3.6 once I get a clutch out in this thing...

Last edited by Avs126; 11-01-2018 at 10:14 AM.
Avs126 is offline  
Old 11-01-2018, 03:03 PM
  #7  
tabbruzz
CF Senior Member
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 2,858
Thanked 29 Times in 27 Posts
Default

Originally Posted by Avs126 View Post
I have an 04 with the 3.8 pulley and 60 lb injectors. The only other mods is a full exhaust with no cats. Dyno’d at 524 whp. I’ll be switching to the 3.6 once I get a clutch out in this thing...
Nice.....I was only targeting a 500rwhp number.....What boost are you running at?
tabbruzz is offline  
Old 11-02-2018, 08:09 PM
  #8  
bada
CF Senior Member
 
bada's Avatar
 
Member Since: Oct 2011
Location: greenbrier tenn
Posts: 346
Thanked 4 Times in 4 Posts
Default

Originally Posted by Avs126 View Post
I have an 04 with the 3.8 pulley and 60 lb injectors. The only other mods is a full exhaust with no cats. Dyno’d at 524 whp. I’ll be switching to the 3.6 once I get a clutch out in this thing...
Mine makes that now, with a 4.25 pulley, stock LS6, 42 lb injectors, with kooks long tubes, high flow catts, and B&B axle backs. 93 pump gas.
bada is offline  
Old 11-07-2018, 02:05 PM
  #9  
ss4luck
CF Senior Member
 
ss4luck's Avatar
 
Member Since: Oct 2008
Location: SoCal
Posts: 298
Thanked 13 Times in 12 Posts
Default

Originally Posted by tabbruzz View Post
that sucks...was the engine stock? Well, u guess not if you were goib hgv over 190...lol
it was stock minus a cam and valvetrain hahaha
ss4luck is offline  
Old 11-08-2018, 10:05 PM
  #10  
tabbruzz
CF Senior Member
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 2,858
Thanked 29 Times in 27 Posts
Default

Originally Posted by ss4luck View Post
it was stock minus a cam and valvetrain hahaha
lol
tabbruzz is offline  
Old 11-12-2018, 06:56 AM
  #11  
romandian
CF Senior Member
 
Member Since: Nov 2014
Location: Switzerland
Posts: 984
Thanked 33 Times in 33 Posts
Default

you can always put a restrictor in front of the blower, like ecs does.
romandian is offline  
Old 11-12-2018, 11:17 AM
  #12  
tabbruzz
CF Senior Member
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 2,858
Thanked 29 Times in 27 Posts
Default

Originally Posted by romandian View Post
you can always put a restrictor in front of the blower, like ecs does.
Yeah, I know the A&A KIT does not use restrictors so I am trying to use what comes within the kit....Thanks though
tabbruzz is offline  


Thread Tools
Search this Thread
Sponsored Ads
Vendor Directory

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: