J & M Products

Go Back   The Z28 Forums > Tech Talk > 4th Gen LT1 (1993-1997) > Induction
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 07-27-2009, 03:17 AM
New Z28.com-er
 
Join Date: Jul 2009
Location: NC
Posts: 6
Send a message via AIM to kwa842000 Send a message via Yahoo to kwa842000
whats max boost on stock engine safely

I havent a blue
Reply With Quote
  #2 (permalink)  
Old 07-27-2009, 06:49 AM
Paulster2's Avatar
Z28.com-er
 
Join Date: Jul 2006
Location: Stafford, VA
Posts: 7,048
LT1 max boost ~= 6psi
__________________
"Think with your dipstick, Jimmy!"

Click SIGPIC to go to Paulster2.com!
Paul J. -
Cam Swap Cam Selection LT1 Cam Specs Cam Write-up Pinion angle help Head Flow Seafoam Howto Injector worksheet LT1 INFO Aftermarket Links 2009 HRPT
Reply With Quote
  #3 (permalink)  
Old 07-30-2009, 06:18 PM
95z28onjuice's Avatar
Z28.com-er
 
Join Date: Mar 2008
Location: clearwater,fl
Posts: 1,122
paul some lt1 kits run 9psi and even 7 or 8
__________________
Hello my name is TOM and my car is FROSTBITE!

95 Z28 383, Ported Heads,intake,cc306,crane springs,1.6rr,comp pushrods,Flame covers,lt4KM,Full MSD,NOS wet,58mm polished TB,SLP CAI,Low Alt,Mac headers,Flowmaster,Canton pan,melling pump,billet FPR,accell 42lb,Lakewood drag shocks,BMR Arm's,Hotchkis panhard ajust,moser axle,eaton locker,4.10,built 4l60e,2800stall,No Air!Smog!PS!Heater!Egr!Seats! Its all stock i swear
Reply With Quote
  #4 (permalink)  
Old 07-30-2009, 11:27 PM
JMann94z28's Avatar
Z28.com-er
 
Join Date: Oct 2007
Location: GA
Posts: 1,043
i would just try 5 to be on the safe side
__________________
94 Z28 A4 3:42's UMI LCAs/Panhard Bar KYB AGX shocks 1.5 Eibach lowering springs, paint job needed
04 Dodge Ram Quad 1500 5.7 K&N CAI, 3" Exhaust and Programmer coming soon

Reply With Quote
  #5 (permalink)  
Old 07-31-2009, 12:46 PM
97tealZ's Avatar
Z28.com-er
 
Join Date: Jul 2007
Location: Gillette WY
Posts: 300
it depends alot on the altitude you are at but usually it is 6psi or less
__________________
97 z28 383 stroked 11.5:1 230/236 .57X lift with 110LSA: stage2 P&P with beehive 918's: 1.6 RR: Hardened Pushrods: 32#inj's: 58mm TB: Delteq: Pace Setter Headers:!Cats !Air !EVAP !EGR: 3" Magnaflow: LCA: LCA relocation B's: UMI torque arm: pro 5.0 connected to a Spec Stage2 spinning Nitto DR's
Reply With Quote
  #6 (permalink)  
Old 07-31-2009, 12:55 PM
Paulster2's Avatar
Z28.com-er
 
Join Date: Jul 2006
Location: Stafford, VA
Posts: 7,048
Quote:
Originally Posted by 95z28onjuice View Post
paul some lt1 kits run 9psi and even 7 or 8
If the engine is built for boost, you could run as much as you want. With 10.4:1 CR, ~6psi is about all you want to run. I'm not saying people out there aren't running higher boost, I'm saying IT ISN'T PRUDENT. When you get your boost much over 6psi, I would bet you'll see the PCM pulling all kinds of timing, which defeats the purpose. You need to be about 8.5 to 9 CR to run anything worth running. Nitrous is a lot better power adder for a stock LT1, IMHO.
__________________
"Think with your dipstick, Jimmy!"

Click SIGPIC to go to Paulster2.com!
Paul J. -
Cam Swap Cam Selection LT1 Cam Specs Cam Write-up Pinion angle help Head Flow Seafoam Howto Injector worksheet LT1 INFO Aftermarket Links 2009 HRPT
Reply With Quote
  #7 (permalink)  
Old 08-07-2009, 10:16 PM
PoorMan's Avatar
Z28.com-er
 
Join Date: Apr 2003
Location: Chesterfield MI
Posts: 588
Send a message via AIM to PoorMan Send a message via Yahoo to PoorMan
Boom!!!
__________________
'94 Z28 Vert. w/ M6, XE 224/230 cam, .553/.561 lift w/ 1.65 RR's, LE2 LT1 Heads, JetHot LTs, X-pipe Duals, CAI, AS&M TB, !AIR !EGR !CAT, TB Bypass, LT4 KM, 30lb SVO injectors. SLP LT1 SS hood and SLP 98+ SS spoiler. Still rollin' on salad shooters. Install Pictures
Reply With Quote
  #8 (permalink)  
Old 08-07-2009, 10:34 PM
FANTA-Z's Avatar
Im your Hucklberry!!!!!!!
 
Join Date: Oct 2003
Location: Louisville, KY
Posts: 38,771
Send a message via AIM to FANTA-Z Send a message via Yahoo to FANTA-Z
If you have a kit with an intercooler you can run about 8. But if you want to be on the super safe side I would run 6
__________________


Glenn
2010 Camaro Inferno Orange Metallic 2SSRS (Amber)
03 Envoy (Ebony)

"Worry looks around, Sorry looks back, Faith looks up."
Reply With Quote
  #9 (permalink)  
Old 08-08-2009, 09:34 PM
wicked9d6's Avatar
Z28.com-er
 
Join Date: Dec 2008
Location: New Mexico
Posts: 213
I've heard 6 and lower
__________________
K&N/Hotchkis/SLP/BBK/MagnaFlow/Flowmaster/QTEC Equipped/
HID Lights/Rockford Fosgate AMP & Two PUNCH P1 Subs (12")
--1996 Z28 Convertible
--Daniel
Reply With Quote
  #10 (permalink)  
Old 08-13-2009, 01:43 PM
Paulster2's Avatar
Z28.com-er
 
Join Date: Jul 2006
Location: Stafford, VA
Posts: 7,048
Quote:
Originally Posted by PoorMan View Post
Boom!!!
More like: Ratty-Tat-Tat BOOM!
__________________
"Think with your dipstick, Jimmy!"

Click SIGPIC to go to Paulster2.com!
Paul J. -
Cam Swap Cam Selection LT1 Cam Specs Cam Write-up Pinion angle help Head Flow Seafoam Howto Injector worksheet LT1 INFO Aftermarket Links 2009 HRPT
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -5. The time now is 03:23 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.0
Site and Contents Copyright © 2009-2010 Z28.com All Rights Reserved