The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Boost Spike from HELL!!

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

ZenkaiRacerDsM

20+ Year Contributor
760
8
Nov 8, 2002
Layton, Utah
Ever since I put my 14b w/ bullseye turbine housing on Ive never been able to get it to boost more then 14psi without spiking like hell.

Heres what happens. If i adjust the boost controller a little above 14psi it will spike like 1 or 2 psi. So I think to myself hey its still at 14psi up that biatch. So I up it. Then it spikes even more past 14psi but always drops right back to the damn number 14. Ive had it as high as spiking to 21psi and I wasnt comfortable raising it any further. Even when spiking to 21psi it would drop right back to freakin 14.

Ive replaced my hallman classic BC with a brand new Hallman Pro. Ive swapped out the wastegate actuator. And Ive also had the BC lines so short that I had to reach down near the radiator fan to adjust the BC (all the while burning my hand multiple times on the turbo manifold!).

The only other thing I think the problem could be is that the tension on the wastegate flapper arm is too tight. On the bullseye housing it has an adjustable flapper arm. Im thinking it needs to be adjusted so that there is less spring tension on it. I tried to adjust it once before but I stripped all my allen wrenches and havent bought new ones yet. I dont know if I will be able to adjust it or not since its stuck pretty good.

Anyone have any other ideas what the problem might be?
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top