Mild turbo setup & Hypereutic pistons...
#1
Mild turbo setup & Hypereutic pistons...
Very mild turbo setup (at least compared to what some of you are doing), single turbo, ~5psi, cast crank, hypereutic pistons
what do you think ?
I did a quick search but got 0 results for anything related to hyreutic pistons...
what do you think ?
I did a quick search but got 0 results for anything related to hyreutic pistons...
#2
TGO Supporter
Join Date: Jul 2001
Location: Cheyenne, Wyoming
Posts: 4,991
Likes: 0
Received 1 Like
on
1 Post
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
I have run up to 12 psi on cast pistons, up to 8 or 9 is safe.
https://www.thirdgen.org/techbb2/sea...der=descending
here is a good one from that list:
https://www.thirdgen.org/techbb2/sho...hreadid=214262
https://www.thirdgen.org/techbb2/sea...der=descending
here is a good one from that list:
https://www.thirdgen.org/techbb2/sho...hreadid=214262
Last edited by B4Ctom1; 09-21-2004 at 10:07 PM.
#4
Supreme Member
Yeah, detonation is the killer. That means very modest compression and not getting greedy with spark advance if you're going to run pump gas.
I'm running 5 PSI from a roots blower into my 383 with KB Hypers and they've stayed alive for almost 2 years of weekends. My compression is still a bit too high for a roots blower (8.6:1 - I shoulda tanked it down to around 8:1) and I am limited to about 26* of advance at WOT before detonation on pump gas. Over 28* and I start blowing alminum dust off the piston faces due to detonation. I'm currently laying 390 to the rear wheels through an automatic trans.
With a turbo (especially intercooled) you could almost certainly run the same compression as me, more spark advance and make more power than I do while still being less prone to detonation, all else being equal.
I'm running 5 PSI from a roots blower into my 383 with KB Hypers and they've stayed alive for almost 2 years of weekends. My compression is still a bit too high for a roots blower (8.6:1 - I shoulda tanked it down to around 8:1) and I am limited to about 26* of advance at WOT before detonation on pump gas. Over 28* and I start blowing alminum dust off the piston faces due to detonation. I'm currently laying 390 to the rear wheels through an automatic trans.
With a turbo (especially intercooled) you could almost certainly run the same compression as me, more spark advance and make more power than I do while still being less prone to detonation, all else being equal.
Thread
Thread Starter
Forum
Replies
Last Post
Doobie52
Engine/Drivetrain/Suspension Parts for Sale
0
09-11-2015 06:19 PM
350, application, cast, hypereutic, hypereutics, mild, piston, pistons, supercharger, turbo, turbos, tutbo