very quick power FC question

[fro]

sorry if this has already been covered

Is pre-spool adjustable with a power fc?

The only reason I ask is because, with a stock ECU, my transition is a bit spikey
Thanks in advance

Rob

[20B_boy]

Do you have full exhaust? sounds like it.

Power FC should smooth it out but might not eliminate it altogether, depending on just how seriuos your exhaust is...

[fro]

just a silenced midpipe. The downpipe is standard and rear box is a quiet jasma approved jobby.

I usually get 10psi on the first turbo, a 12psi spike and then 10 on the second

From what I\'ve read elsewhere, the other options are adjusting the arm that connects to the pre-spool \'door\' or sticking a smaller restrictor in the prespool actuator hose.. or some combination of the two
Then again, if the powerFC smooths it a little I\'ll be happy. I just want to play it safe.
Cheers

Rob

[Ric]

I thought that 10-12-10 is the normal boost pattern anyway? I don\'t have a boost gauge connected myself, but I\'m pretty sure it\'s working as it should there mate.

[fro]

I think it should be 10-8-10 and the reason I\'m getting a brief spike is because the second turbo is pre-spooling too early (due to the de-cat).
I was offered a power FC for £500 a while ago and turned it down because I was unsure whether I\'d modify the car... wish I\'d taken it now :rollin
Cheers

Rob

[Ric]

Originally posted by fro
I think it should be 10-8-10 and the reason I\'m getting a brief spike is because the second turbo is pre-spooling too early (due to the de-cat).
I was offered a power FC for £500 a while ago and turned it down because I was unsure whether I\'d modify the car... wish I\'d taken it now :rollin
Cheers

Rob

Ah - yep I think you\'re right.

I had some good links regarding boost issues but this is the only one I can find at the moment... (in case it\'s of any use)

http://www.autosportracetech.com/RX-7/TurboTroubleshooting.htm