Rb 25 Inlet Manifolds. When Do They Cause A Restriction

[bigcarl]

step 1 tomei poncams 256degrees duration 8.5mm lift.

[xxx_25L]

what do you guys think of cutting the standard plenum and running the throttle body from, the front it would reduce heaps of pipe work and make it more responsive and if done what vacume pipes could be disgarded

Edited September 7, 2006 by xxx_25L

[Turbo Tits]

hahahah, you flew right off the rails with that one! You quite clearly missed my point, but you almost got there. Good try.

Don't be so defensive, this is a discussion forum, so discuss. Encourage conversation, don't put people down.

Try thinking about what people say, rather than interpreting things so black and white. What makes you so sure that the meaning you took from my statement was the one I intended?

Lastly, if what I was thinking was "stupid", I would not have thought it necessary to add it to the "discussion".

now that's a stupid response!....there's money in everything..geez u might as well say why upgrade your turbo or why are they selling them..to make money duh!... lets just do research for the sake of it...hahahahhahaha.....ffs...

Edited September 7, 2006 by Turbo Tits

[SLIMVLT]

ive seen it work but im not sure how well and it looks shite in my oppinion

[infected flow]

hahahah, you flew right off the rails with that one! You quite clearly missed my point, but you almost got there. Good try.

Don't be so defensive, this is a discussion forum, so discuss. Encourage conversation, don't put people down.

Try thinking about what people say, rather than interpreting things so black and white. What makes you so sure that the meaning you took from my statement was the one I intended?

Lastly, if what I was thinking was "stupid", I would not have thought it necessary to add it to the "discussion".

as u can see i was laughing and im still laughing....hahahahahahahah im not defensive im discussing the topic on hand..hahahahahahha....

[SLIMVLT]

i have 1 tommie inlet cam (256) so thats good then.

i tink i will setal with a isp (arial) plenum they seam to be the pics of the group.

i think i could make good power with the standard manifold but i wanna make power with as litle boost/effort posible.

the less restriction the less boost so i mite go 1 of them

[2BNVS]

good stuff u wont be dissapointed. plus it will make ur engine bay look heaps better

ben...

[`nigno]

Im currently in the midst of doing a full GTR ITB Conversion to my RB25 including custom manifold (leaning towards a plazmaman plenum) will keep you posted on before and after results if you are interested.

I know they wont be specifically related to the plenum alone as the ITB's are bound to make some difference but at least it will give you some scope of a real world application.

Turbo = T67-25g - Currently pulls around 500rwhp

[SLIMVLT]

keep us updated.

also i wanna know how it all fits up and all that jaz chuck up some pics when your done.

the latest zoom mag has 1 of there plenums in it and it looks ok but it all depends on how it works

[`nigno]

keep us updated.

also i wanna know how it all fits up and all that jaz chuck up some pics when your done.

the latest zoom mag has 1 of there plenums in it and it looks ok but it all depends on how it works

Ive had to use a CNC machined adaptor to make it fit correctly ($500 from japland) and switch my fuel rail and injectors for GTR Items to suit... will definitely keep you posted. SHould come up a treat once its done.

[Taffy]

So its 10psi and not 8psi now eh?

Which version of the story are we to believe?

But you are in the US remember, the figures are somewhat "higher", your 50rwkw is around our 30, which then (going to 10psi/management) is whats expected

Have you ever done this same build up and tested it on the same exact dyno to get readings? I have.

I am not sure if you read my first post correctly or not, but I said that it was at 10 psig up to about 6K, then all the way to 7500, it fell to 8 psig. At 8 PSIG at 7500, it made 310rwhp, which is 235rwkw.

[R31Nismoid]

You are in America.

Its impossible to compare, especially 235rwkw from 8psi.

If you wanna do accurate testing, bring the car over here and you'll see your 235 fall to around 180-170

With 235rwkw you'd better be dipping WELL into the mid-12 sec brakcet.

Look forward to you strip results. But i suspect you wont get better than a mid-low 13.