Turned Boost Down, Feels Faster?

[ClutchBurndout-:(]

well, i got a stockish settup, 3.5 inch zorst inc bell mouth, cat etc, fmic, bla bla

and i was running 10ish psi, and was fairly RR for watever reason, felt horrible on boost, turned it down to 6-7psi ish, and it feels faster and smoother... i know its technically not possible, but would the RR cause it to run so much slower?

or maybe my boost gauge is being a broad minded person?

[JonnoHR31]

its very possible. most standard 33s will be overall quicker with stockish boost

[MBS206]

well, i got a stockish settup, 3.5 inch zorst inc bell mouth, cat etc, fmic, bla bla

and i was running 10ish psi, and was fairly RR for watever reason, felt horrible on boost, turned it down to 6-7psi ish, and it feels faster and smoother... i know its technically not possible, but would the RR cause it to run so much slower?

or maybe my boost gauge is being a broad minded person?

If you were hitting R&R and it was going into spastic areas of the map, yes, you'll be quicker as the car will actually be running correct timing and fuelling on boost, meaning, it will make more power and save you fuel.

[ClutchBurndout-:(]

thought so, you heard it from here kids, lowering your boost makes the car quicker haha

cheers guys

[MrR33666]

If you were hitting R&R and it was going into spastic areas of the map, yes, you'll be quicker as the car will actually be running correct timing and fuelling on boost, meaning, it will make more power and save you fuel.

+1

[R31Nismoid]

Have a look @ any graph where R&R kicks in hard - it basically pulls the entire midrange

quite easy to see how backing off boost, restoring midrange = faster.

[Pattygtst]

I wouldnt have thought 10 psi would cause R&R.

[ClutchBurndout-:(]

I wouldnt have thought 10 psi would cause R&R.

neither, must be something with my engine, but feels freakin horrible on boost...

[defari]

^^ correct but there are other factors invloved.

i had mine at 12psi ran 0-100 just over 6 seconds.. turned the boost down to 8psi - ran under 6 seconds..

[ClutchBurndout-:(]

yea, so what i goto do now is find the highest boost i can run, before hitting R&R, im guessing its about 8 psi or so

[STATUS]

i posted dyno sheets and ecu maps on this ages ago.... more boost equals more fuel and way less timing so it it loses heaps of mid range. R34 is worse again.

[ClutchBurndout-:(]

i posted dyno sheets and ecu maps on this ages ago.... more boost equals more fuel and way less timing so it it loses heaps of mid range. R34 is worse again.

got a link good sir? do you know what the best psi i should run on a stock turbo, new zorst fmic etc etc?

[trel]

i was going to do this to my car tonight... i run 12psi with an avc-r it isnt too bad... but can feel R&R... will lower it with a mate tonight to 10 and see what happens.

[ClutchBurndout-:(]

whats an avc-r?

[defari]

clutch - i run mine between 9-10psi - i get the slightest RR when its really really cold..

[R.3.2.G.T.R]

whats an avc-r?

apexi boost controller

[R31Nismoid]

I wouldnt have thought 10 psi would cause R&R.

Every car & ECU is different.

Can be many factors

[MrR33666]

Every car & ECU is different.

Can be many factors

10psi sends my 33 into r&r

[HEKT1K]

when I had the standard turbo, I could run 11-12psi with no signs of bad running

so yes every car is different

[PM-R33]

Point of this whole episode, ditch the factory ECU