RED TOP question

[lescazscoob]

CAN I FIT AN STI VERSION 4 red top inlet manifold to my 93 wrx and if i can what difference would it make?

[col666]

Another manifold question!

Are the red top manifolds any different to normal ones? apart from the colour!

[WUZ]

Right....YES, you can fit the V3/4 Inlet manifold to your car and it will mate up to your heads no problems. It will allow you to run Front entry Turbos like the V3- cars. Removing the 90-degree part on the turbo inlet will allow more power to be available from the turbo. Also allows you to fit a V3/4 TMIC - MUCH BETTER COOLING of Inlet Charge Temp!

Anoter "theory" on Red-top's,they are exactly the same as normal WRX Inlets. The V2 Sti in limited numbers did get a ported and polished Inlet but these are like gold dust!

Russell

[the squiggle]

 

Anoter "theory" on Red-top's,they are exactly the same as normal WRX Inlets. The V2 Sti in limited numbers did get a ported and polished Inlet but these are like gold dust!

Russell

Standard fit on Imy and my car.......................[]

 

[wrxmania]

Did the V.1 STI get this too? []

[Carl Davey]

Brian, the V1 was the only STi which didn't come with a red-top manifold.

Grant, have you checked to see if yours/Imys are ported/polished? Would be interested in pics if they were. I've seen 15-20 manifolds from various classic Imprezas and each casting has been near identical be it UK, WRX or STi. I believe there is some truth in what Russell says but until i've seen one it remains a rumour (at best) for me.

[wrxmania]

Brian, the V1 was the only STi which didn't come with a red-top manifold.

Yeah - I was thinking of the porting and polishing though Carl as STI had built this engine - with all the stuff they done, it seems likely. []

[Carl Davey]

I'll bet you £10 it isn't. []

(i'd love to be proven wrong. [])

[wrxmania]

I have no idea - but if it ever comes off and I find out it is - that's 5 pints you owe me []

 

[wilky]

The V1 and few V2 stis that were hand built until production moved back to the FHI factory were supposed to be blueprinted, but having worked on a few of these cars the port matching that was supposed to have happened was merely a token effort, I could see it had been done but it was a very poor effort.

The right angle bend on a TD05 makes not one ounce of difference to the power, they were converted to front entry simply so that later cars could be fitted with them.

Callum W