scoobysteve2286

has anyone got one of these fitted on their scoob? is it a good mod to have? i know the bhp response isnt massive but i take it it would be a stronger part than the stock manifold.

if anyone has a pic of it on their car could they post it please?

ChibiSF

My friend's 2006 STi.

scoobysteve2286

sweet, is it a direct bolt-on or is there any mods to make it fit?

Badbird

its a long long way from being a direct fit, realy out of most peoples scope,

wrx9181

iTrader: (2)

f me chibisf now thats an engine bay ! whats that kicking out bhp wise

beef-on-the-bone

iTrader: (5)

that is a pretty special bay!!

stevebt

iTrader: (8)

I wouldn't bother with a cosworth manifold unless your going for 600bhp'ish and above. I have had an aftermarket manifold on mine for years but I have never known if it has made any difference?

Alan Jeffery

We fitted one to Scott's car, it made 630 bhp from a GT35/42R on a 2.1
We made a mounting block to fit a cable throttle body. It certainly looks the part, only back to back would prove anything of course.

Badbird

we got a stock newage manifold on an everyday street car that still has aircon and uses straight v power from the pump and it made 604 bhp, so when do these realy become nessasary

BlueBugEye

iTrader: (12)

It looks to me like these keep the tumbler (or tumbler delete) blocks, would you not be better off with a 1-piece Spec - C manifold?

SMA01 - black scoob

as alan says, got 1 fitted on my car, will get pics up asap.....

ChibiSF

On a Dyno Dynamics dyno he made 460 all wheel horsepower with a maxed out MAF on 93 pump gas (I'm from the States if you haven't noticed.) He is going back this week for remap with a bigger intake. This is the chart from the remap with a maxed out MAF sensor. I'll post the new one when he goes again.

frayz

iTrader: (7)

Its been back to back tested in the states and is doing nothing for cars below 600bhp... thereafter its providing some decent gains.

So basically proves that the stock manifold doesnt become a restriction till after those flow rates.

dave_garrett

iTrader: (24)

I don't care if they help or not, I want one because they look good !



PS. Not my car .

F1 CJE UK

iTrader: (8)

would a spec c Manifold offer a performance again over a sti spec ? or are they used just to give a clean bay ?

Badbird

Hope you got deep pockets as its a lot of money and effort to waste and like getting boiled alive in summer

frayz

iTrader: (7)

Only if the sti manifold has TGVs fitted. Of which i dont think they do. The spec c manifold does help creating a little more room when using a larger turbo inlet pipe however.

frayz

iTrader: (7)

Cosworth Manifold/ GT30R Testing... - NASIOC

BlueBugEye

iTrader: (12)

With a set of ported and wrapped headers, harvey up-pipe (magnex decat on there before) and Spec-C manifold plaus a Samco sport intake I went from 341 to 370 Bhp on a remap. Not a back to back I know.

I thought all UK STI's had the tumblers - Jap Performance parts has Spec-C's in for £100 - this is without fuel rails and the fuel rail mounting points are different to the std tumbler positions, I had to make up brackets for my Perrin Rails (will be making up nicer CNC ones at some point). Plus a bit of vacum hose re-routing is needed!

frayz

iTrader: (7)

Certainly the sti 7 and 8 uk cars had the tumbler bodies, but no internals. ( as far as i know)

Alan Jeffery

An Impreza isn't necessary! I honestly don't think it's a big deal on these cars, but every time I tell someone they don't need something, they go and buy it somewhere else. Scott's car arrived without a manifold, which made the decision to buy one an entirely different proposition.
The engine bay is dominated by the manifold on Scoobies, and let's face it, only its Mother could love its looks. The Cosworth one opens a whole new world of expression with paint schemes, as you can see from the two pictured so far. The cost? who cares?

Peanuts

iTrader: (15)

just because something isn't necessary, doesn't mean that it will not provide benefit or improvement.

harvey

iTrader: (48)

For what it is worth, the restrictions on these engines are on the exhaust side and not the inlet side.
Spend a lot of money on a Cosworth inlet manifold if that is what you want to do but it is not the most cost effective expenditure if you want to up your power.

Dan 2

iTrader: (2)

And the most cost effective expenditure being ?

Alan Jeffery

I'd say a £1 for Autotrader so you can sell the damn thing before it bleeds you dry! other than that, just smile and hand the money over.

Dan 2

iTrader: (2)

dynamix

iTrader: (3)

Look lovely but too bloody expensive for me to want to try one. I think the std manifold is working fine for me.

harvey

iTrader: (48)

With you full spec Dan it might be possible to suggest cost effective mods for you.

Paul C

iTrader: (12)

IMPRESSIVE!!!!!

Fleetwood

Anybody running the Tomei quad throttle system? Price drop at the moment for the bargain of $4990, perhaps we should organise a group buy?
http://www.tomei-p.co.jp/inf/pdf/112_ae_Letter.pdf

Brings you "Dancing Revs" according to the advert!