Boost ?

[BensR33]

Hi guys,

I juz got my R33, i would like to know what is the recommended boost for a stock turbo and intercooler? as i would be tuning my SAFC II soon. the mech suggest that i need to boost up to gain more hp.

[Kaido_RR]

more boost will get you more hp

but on stock i/c i would be only running around 8-9psi, once you get a fmic you will be able to boost it up to around 12psi

[mitchy_]

i was running 10psi on my 450x280x75 FMIC, and am now running 12psi on my 600x300x75 FMIC

[Josh]

Max boost for stock RB20/25 turbos is 15psi.. even then you are pushing it. Goodbye exhaust wheel

[Boostzor]

the higher u go, the sooner it blows

12 is pretty safe though as long as u got a fmic and safc and you dont go playing with the solenoid and spiking it. (THATS BAD)

[BensR33]

hmmm ..... guess i will juz boost it till abt 0.9 bars and then leave it till i get the FMIC. then maybe i can get abt 20-30hp. by the way what do u guys think abt going to hyperdrive to do the tuning? i heard they did not blow up any engines as yet!!!

[Boostzor]

Hyperdrive are as good as they come as far as im concerned. The two guys there have been in the game for a fair while now and are well respected.

Havent heard anything bad about em yet.

[caminperth]

As far as boost levels go - take the advice of the tuner at Hyperdrive - I hear he's tuned a few..

[Kaido_RR]

hmmm ..... guess i will juz boost it till abt 0.9 bars and then leave it till i get the FMIC. then maybe i can get abt 20-30hp. by the way what do u guys think abt going to hyperdrive to do the tuning? i heard they did not blow up any engines as yet!!!

<{POST_SNAPBACK}>

0.9bar = about 13-14psi without a fmic you are really pushing your car. i run on 0.8bar with fmic

[BensR33]

hmm ... thanks guys for ur info i guess will juz leave it to the tuners anyway if they blow up my engine, they will have to be responsible for it. lol

[Boostzor]

Not true.

They use some disclaimer like "while the highest level of care is taken we do not accept responsibilty for damaged incurred in the normal course of tuning on teh dyno" or something to that effect.

otherwise some fewl brings in a near dead engine and wants a bunch of stuff on it and it tweaked to max, it blows and they have to fix and engine that was already daed but happend to blow on the dyno. Tough but thats how it goes.

[BensR33]

well its all luck then!! tats wat happens when u want to play ard with ur car..... but i guess it should be ok coz they cannot boost it up too much either or maybe my ride had been boosted B 4 in Jap is what i suspected coz it running @ 0.7 Bar on my Defi Guage

[R33.]

hmmm ..... guess i will juz boost it till abt 0.9 bars and then leave it till i get the FMIC. then maybe i can get abt 20-30hp. by the way what do u guys think abt going to hyperdrive to do the tuning? i heard they did not blow up any engines as yet!!!

<{POST_SNAPBACK}>

Hyperdrive is good mate i wouldnt take my car any where else ive had all my work done on my R33 GTS-T S2 , exhaust, FMIC, Pod, boost controller and shortly Power FC very happy with the work and the guys there are very helpful and knowledgeable

[BensR33]

yup , thanks mate for da info had book an appointmwnt with them already

[maccaz_gts25t]

hahahahhaha i have a mechanical TURBOXS boost controller and this is not good but funny, its set one like 10.5 - 11 and drop it in second from around 60km/h and it spikes depending on how much throttle it gets, floored it can easily reach 15, and my boost gauge goes to 20 and ive spiked passed it and now my gauge is fogged.......... i dont think my turbs gonna have much life left in her.......

[mitchy_]

$40 boost controller off ebay, set to 12psi, *never* spiked

[BensR33]

$40 boost controller off ebay, set to 12psi, *never* spiked

<{POST_SNAPBACK}>

i got mine done by hyperdrive a GFB manual boost controller!! i got 10 PSI from tat gd enough for me i m also doing 220 hp at the wheels!!! :lol:

[dr00]

one guy i know ran 18psi all the time for about 6 months without any problems... but i wouldnt recommend it you can pick up a stock turbo for 250-300 these days so it depends how tight your cash is

[shorty_01]

Hey all,

"12 is pretty safe though as long as u got a fmic and safc and you dont go playing with the solenoid and spiking it. (THATS BAD)"

Im new to SAU, FMIC is front mount intercooler, what is SAFC ppl?

Plz explain:)

Thanks

Regards

Shorty:)

[Kaido_RR]

safc2 is Super Air Fuel Controller

its made by apexi and basicly controlls ur air/fuel ratios (tricks the stock ecu)