TobiasRX

I dont consider it a problem since i have had my car all summer and only has an exhaust on it.

Bought my boost gauge and saw 11-8-10 and hitting 14 then it quickly got down to 10 again.

What do u think about it?

rynberg

I would consider that a problem because every time you spike, you are running lean for that amount of time (assuming you still have stock ecu). What cat-back are you using?

Ohseyun

boost spikes are comon among rx7's with the sequential setup. If i were you i'd be very careful with your car as those boost spikes could cuz your engine bye bye. get an upgraded ecu or take the exhaust out.

gzon

Install a manual BC.

GoodfellaFD3S

iTrader: (213)

When did you spike? At ~4500 rpms? That's a definite problem. My Greddy Profec B cured my problem--might be better to spend $300 now rather than $3000 later. I had a Manual Boost Controller before that and it didn't help much.

TobiasRX

im gonna get an ecu this winter.

For now my car is officially put in a garage until next year

rajeevx7

iTrader: (11)

i had the same problem. make a manual boost controler. it all depends on how thick the tube is you use with the bc. i used 6mm and now my boost is perfect and tuneable.

amp

iTrader: (50)

boost spikes are NOT common among FDs that are running just catback...

amp

iTrader: (50)

.