2.2" pulley on S1 L67 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-11-2007, 11:56 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2006
Location: Mesa, AZ
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
skelleyaz is on a distinguished road
Default 2.2" pulley on S1 L67

This weekend I plan to put a 2.2" pulley on my 1994, S1 L67 Sandrail. Aside from changing the to NGK TR7IX plugs and changing my fuel pressure regulator to 55 lbs, is there anything I am forgetting?
skelleyaz is offline   Reply With Quote
Old 01-12-2007, 12:02 AM   #2
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

2.2 is pretty small for the 94-95 Gen3 SC....i think that a Stock 2.55 off a 92-93 Gen2 might be better for you
1993 SLE is offline   Reply With Quote
Old 01-12-2007, 12:14 AM   #3
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

IMO, being in an open environment, and your free flowing exhaust, a 2.2 will be fine. I'd try a larger SC belt tensioner pulley to prevent belt slip. ZZP has them.
J Wikoff is offline   Reply With Quote
Old 01-12-2007, 12:17 AM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2006
Location: Mesa, AZ
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
skelleyaz is on a distinguished road
Default

The pulley I have now is 2.365" and I'm running 10 lbs of boost.
skelleyaz is offline   Reply With Quote
Old 01-12-2007, 12:18 AM   #5
Junior Member
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

have you ever scanned for KR?
harofreak00 is offline   Reply With Quote
Old 01-12-2007, 12:20 AM   #6
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2006
Location: Mesa, AZ
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
skelleyaz is on a distinguished road
Default

Nope, but I have no indication I have KR. I'm running a Linx computer that does not use the MAP only engine speed and O2 sensor.
skelleyaz is offline   Reply With Quote
Old 01-12-2007, 12:35 AM   #7
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Ours doesn't use the MAP either, it'* just there for the boost gauge. But it does use a knock sensor. Does yours have a boost control solenoid or do you just have the boost control actuator?

Wideband O2?
J Wikoff is offline   Reply With Quote
Old 01-12-2007, 12:44 AM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Scan for KR and check your fuel pressure, or don't do it.

The ambient temperatures where you run that thing are your enemy, not your friend. Air temps will make KR worse.

It took a TON of work for me to get to a 2.2" pulley with the Gen3 setup. And I scan for KR constantly.

KR hurts you more than the timing advance you'd GAIN from higher octane. I hope you're running premium?
willwren is offline   Reply With Quote
Old 01-12-2007, 12:47 AM   #9
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

I figured if he'* getting 10 psi on the current pulley and his setup (heat probably rolls off pretty easily), the 2.2 would push him to 11.5 or 12, and that'* less than I push.

Do you have a knock sensor on it?
J Wikoff is offline   Reply With Quote
Old 01-12-2007, 12:47 AM   #10
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2006
Location: Mesa, AZ
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
skelleyaz is on a distinguished road
Default

I run at least 100 LL aviation fuel, Sometimes I run race fuel.
skelleyaz is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
"ban him" in "new car" thread ga93sle Lounge 3 09-23-2006 09:23 PM
The difference between "guts" and "balls" sse1990 Lounge 8 08-31-2006 11:31 PM
Where is the "chime" / "dinger"? PPrash 1992-1999 6 11-21-2005 09:11 AM
'91 L "snakes" intake on a "C" engine ? padgett 1987-1991 5 07-21-2003 08:12 PM
"D" or "OD" ? BusMaster007 1992-1999 23 01-09-2003 03:09 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:52 AM.


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.