Safe boost levels? - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community

Notices
Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

Safe boost levels?

Reply

 
 
 
Old Jul 16, 2017, 02:24 PM
  #1  
Newbie
Thread Starter
 
Join Date: Nov 2016
Location: Spokane, WA
Posts: 12
Thanks: 0
Thanked 1 Time in 1 Post
Safe boost levels?

What are people running for boost levels on a 100% stock turbo/long block? Car was recently tuned (by someone very popular here) and was pushing over 30psi. Motor got destroyed not long after.

Post up below what your seeing on the gauge!
dvniemela is offline  
Reply With Quote
Old Jul 16, 2017, 04:06 PM
  #2  
Evolved Member
iTrader: (4)
 
4G63_EVO's Avatar
 
Join Date: Jul 2012
Location: Montrose CA
Posts: 713
Thanked 45 Times in 44 Posts
Evo X? thats way too much IMO, I was boosting about 26-28 on my X, 23 MAX on my 8 turbo. Seems much to me
4G63_EVO is offline  
Reply With Quote
Old Jul 16, 2017, 04:53 PM
  #3  
EvoM Guru
iTrader: (8)
 
razorlab's Avatar
 
Join Date: Aug 2003
Location: Alameda, ca
Posts: 10,887
Thanked 202 Times in 179 Posts
Way too much on stock motor/turbo, with any fuel.
razorlab is offline  
Reply With Quote
Old Aug 9, 2017, 03:08 PM
  #4  
Newbie
 
Join Date: Aug 2017
Location: So Cal
Posts: 16
Thanked 0 Times in 0 Posts
Currently tuned to 26 lbs on a stock turbo.
Ghostridah is offline  
Reply With Quote
Old Aug 9, 2017, 07:13 PM
  #5  
Newbie
 
Join Date: Aug 2014
Location: Atlanta
Posts: 22
Thanked 1 Time in 1 Post
I saw your video on YouTube for this, I just recognized your name lol. That suck that happened, but I rarely here of anyone going past 27 psi on a stock engine. I believe stock the evo runs 20 psi, so going up 50% of that to 30psi is quite a jump! But to answer your question I am runnning 25 psi.
Jbevoxx is offline  
Reply With Quote
Old Aug 18, 2017, 12:34 PM
  #6  
Newbie
 
Join Date: Aug 2017
Location: syracuse NY
Posts: 15
Thanks: 0
Thanked 0 Times in 0 Posts
still way more pressure than a Subi can hold lol
thanman99 is offline  
Reply With Quote
Old Aug 19, 2017, 04:30 PM
  #7  
Newbie
 
Join Date: Jul 2016
Location: up north in the sticks
Posts: 48
Thanked 0 Times in 0 Posts
If I hit over 30psi the AYC Service Required/AYC Disabled panel comes on.
My block is sleeved with cams and ARP hardware.
Is 30psi still the limit or is there a way to go a little over w/o tripping the AYC code?
2012 GSR.
Arlo is offline  
Reply With Quote
Old Aug 20, 2017, 12:06 AM
  #8  
EvoM Guru
iTrader: (8)
 
razorlab's Avatar
 
Join Date: Aug 2003
Location: Alameda, ca
Posts: 10,887
Thanked 202 Times in 179 Posts
Originally Posted by Arlo View Post
If I hit over 30psi the AYC Service Required/AYC Disabled panel comes on.
My block is sleeved with cams and ARP hardware.
Is 30psi still the limit or is there a way to go a little over w/o tripping the AYC code?
2012 GSR.
I'd find a tuner that knows what they are doing, that is an EASY fix.
razorlab is offline  
Reply With Quote
Old Dec 19, 2017, 02:21 PM
  #9  
Newbie
 
Join Date: Sep 2016
Location: warsaw
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
well we should ask Mitsubishi

My friend stock evo X was hitting 33 psi and it is still is alive

I'm hitting 35-36 on 5 gear but there is no sense to push car full throttle from 3.5 k rpm
but my engine is cosworth pistons and manley h beams about 515 lbs at peak and it is holding 29 psi at 6k rpms. It is really easy to addict I tried to drive at 31 and definietely I didn't like it

In my opinion it is useful and only can survive while using very smart not pushing the car from low rpms

my evo X on stock engine was set for a 30 psi no problems at all
Lutekevo is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
schmeevo
Evo Engine / Turbo / Drivetrain
19
Aug 14, 2017 06:47 PM
Jp7
Evo General
5
Jul 3, 2017 10:05 AM
LyleLukas11
Evo Engine / Turbo / Drivetrain
22
Sep 28, 2016 09:12 AM
tscompusa
Evo Dyno Tuning and Results
8
Jul 18, 2016 12:22 PM
kyoo
Motor Sports
8
Jun 25, 2016 12:10 PM


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

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: