palmer3914

i have a -34 on my t34 (saph cosworth) ....... but it will almost boost cut when im @ 4300-4500 then recover and carry on ...... if i ease the power in it doesnt seem to happen?????

Someone told me the actuator may be "too strong" is this possible or do i really need a -31??

Rhys

You can have the wrong actuator, say if yoiu only want to run 8psi a -31 wouldnt let u do that. Is tht what u mean your running to much boost?

Jim Galbally

what boost are you running (peak + held) and what preload do you have. what other method of boost control do you use? (bleedvalve, amalvalve, air-air, dawes, boost controller etc. etc.)

palmer3914

amalvalve, 22/23psi holding peaking 24psi ish (going by gauge) T34, greens, bd10 inlet ...... replaced map sensor things like that ...... what could be wrong with it .... only just run in.... when it gets to 4300 ish almost like a boost cut?? but then picks up straight afterwards and carrys on to red line

Billabong

I'm guessing that your amal valve was jetted for a -31 / std actuator & turbo....... is the turbo/-34 a recent addition?

palmer3914

the actuator was jetted for a t3 on stage 1 using the -34 ......... i have now got the same amal valve, same -34 just i run a t34 now instead of the t3???? would that effect it??

CraigN

karl recomended i buy a -34 as im running over 1.7bar of boost

if you run under that id run a -31

Smit

iTrader: (5)

boost would be all over the place Matt Air flow on a T3 is much more gadual (sp?) Where on a T34 come in with quite a spike. U would need to get a proper jet for your amal valve or if u don't fancy that maybe a boost controller????

Billabong

Yes it could - best to have the fuelling checked and a boost setup / amal valve rejetted by a pro, imo.

palmer3914

thanks peeps that will be next on the list....... next question would be amal valve or boost controller??? whats best ????