93TTRX7

Seems that my boost is dropping off at high rpm's after my 2ndary spools up. Anybody might know the culprit?

RX7Elmo

it could be a clogged cat or a faulty CRV valve. and what gears is it doing this in?

danny

Rx-7$4$me

what are your mods? Depending on how stock your car is, the normal boost pattern is really 10-8-10-8 it should start falling from 10 at around 6k rpms and stay at like 8 by redline. IF you have straight through exhaust or other mods it will help the boost to stay up at 10.

93TTRX7

I have a downpipe and a cb exhaust...and I don't believe it was doing this before, I was holding good boost....i also got a blitz blow off valve

Rx-7$4$me

I have intake and downpipe and mine is 10-8-10 and then it slowley drops to 8

who knows

93TTRX7

i used to have a 10-8-10-8 boost pattern too until i got my downpipe...then it held up well...or maybe i'm hallucinating

i have a silicon hose job as well

poss

iTrader: (5)

maybe the cat is starting to plug up

BoOsTin FD

i would also like to know more about this. I get 10-8-10-9,8. It seems to drop right around 6k under wot. It's happening in every gear. I changed crv, silicone hoses, and all the couplers and everything. Still the same thing. Check my signature for mods.

Thanks

93TTRX7

probably normal...maybe i didn't have the cajones to look at my boost gauge when my car is screaming in 3rd gear going about triple digits before

Rx-7$4$me

if im not mistaken, the exhaust flow isnt quite high enough to keep the turbo's at 10psi at that high of an rpms, especially with the amount of air the engine is taking in. when you get a straight through exhaust, the flow is upped, and can spool the turbo's alot easier.