beaver

Yep thats correct, boost creep, not spike, thanks for that correction! and explaination,well put.

If you set the turbotec up as a bleeder, preasure drops in the range 1-2 psi (for example)would be normal, as the valve opens at your dialed setting preasure bleeds off. Spikeing would be the oppisite, although at low boost settings this isant so bad, as boost setting increse, say 14-15psi the spike may reach 19-20psi this is not what you want happening to your expensive engine.

If your worried about overboost, i asume you have boost gage, take it for a run on straight bit off road, track is preferable, set turbotec on its lowest setting and get it up round red line in third, note reading on boost gage, if the track straight is long enough do the same in forth, cheque for spikeing! back off if this occours!, you should now have a fairly good idea off the boost, at this lowest setting. Some run high boost with stock ECU, 13/14psi on 30det motor, at this higher boost, the stock fuel map starts to lean a little, and detonation is possible although 30det runs very rich anyway on stock ECU.

Im new here, so hollow dudes. just chequeing out your thoughts on Marks little controller, must say they seem postive overall, so i ordered one to fit on my 300zxtt, witch is currently running boost jets. boost jets are fitted inside the wastegate vaccum lines,this fools the wastegates into opening less and later supplying more boost, i use weilding tips witch look like a 22 bullet with a hole through it. 1.2mm tip gives 10psi off boost constant. cant see why these wouldnt work on skylines, cost is $5. some run a smaller tip size 1mm .9 these smaller ones give more boost. can't wait to test marks controller, the no spike bit, well we live in hope. :uh-huh: