The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Please Support Rix Racing
Please Support Rix Racing

ECUflash 9:1 Peak Ignition Timing

This site may earn a commission from merchant
affiliate links, including eBay, Amazon, and others.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

GSXDNA

15+ Year Contributor
256
14
Nov 19, 2007
Los Angeles, California
I'm going from a stock compression 2.0L to a 2.3L .30 over 9:1. I'm curious how I can expect my peak timing to change.

I've searched around a bit, but haven't been able to find consistent info.

For example, if I was running 35psi (50/50 e85/91) from an hx40 on my 7.8:1 2.0 with 17* peak timing, what peak can I expect to run at 20psi on my 2.3L 9:1?

I know there are many variables here, but I'm just looking for general guidelines for how increasing compression ratio impacts peak timing. Thanks in advance.
 
Strokers don't like as much timing. I had my car tuned at English Racing in 92 octane. I think it was like 10 degrees peak timing on my hx35 stroker with the bolt on housing. Now I'm running meth injection and about 6 psi more.
 
I was only able to run about 23 psi with a small spike to 25. Now I'm at 31 but it falls to 27-28 on the top end. Sorry, meant about 6 psi more.
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top