i cant describe the problem to well, but under no boost i am getting surge.. and part throttle i am getting bucking/sputter a little bit. but it drives fine under wot.

evo9
buschur fmic/short route
tial qr recirc -- 11psi spring
ets intake
tomei 270s
supertech springs etc
fullrace manifold
map dump toob

it only started to do it after i installed the tial and fmic

 

Change the spring to 9 pound

 

powered by pruven x2 :]

i been waiting on brandt to get me a spring but his phones not workig and no one answers the shop phone!

 

Try MAP Performance. Should be able to get the spring from them. Worst case scenario, call Tial and order one.

 

Don't be too proud to represent Pruven. They are horrendous

 

i unplugged the recirculation part of the QR & plugged the pipe, it actually runs a little better, but im still surging lowspeed and VERY little mid throttle. car doesnt idle funny either like most said it would.

 

Sounds like a BOV issue, like they said I'd change the spring, but the part throttle thing might be in the tuning. However over time I've just noticed what my car likes and doesn't like. Every evo is like a child and has it's certain things it doesn't like haha.

 

I had the same problem with my TiAL 50mm...it ended up being the spring. I think I had the 11psi spring (non colored). I switched to the 9psi (white spring) and it corrected any instance of flutter that I was experiencing.

Just be aware that when you go with a lighter spring, your idling will not be as smooth. My rpm's used to drop from 800 to like 200 and the car would almost stall....I had the car retuned and have since had the rpm's turned up to 1,000 at idle to eliminate any stalling.

Best of luck bro,

Danny

 

i had my car tuned to stay at 1000rpm idle

 

x2... my car flutters when i half throttle it also, so ive just decided im either WOT or babying it lol.. my flutter is all because of my HKS SSQV BOV though

 

i changed my spring to white (8psi) and it runs much better under no boost. mid trottle still getting flutter, i plugged recirc back in and dint make a difference, just quieted it down.

what else can i do

 

just learn to love the flutter my IX dv flutters under light loads... girls say it sounds like a snake lol

 

on throttle flutter is true compressor surge, nothing to do with the BOV

 

Get a lower spring. I had the smae issue, swapped to a lower spring rate, and its 100 times better.

 

^What he said.