Development of our MK4 Rs for hps

[G-rig]

I read it as being the other way around - the exhaust is still the limiting factor. Gotta remember that exhaust gases are expanded intake gases - so the engine doesn't need to breathe in as much volume as it breathes out...

oh i meant once the exhaust is done then the intake will be the restrictive part.

[JVLR32]

so with wat iam thinkin.....with head work close to 400hps

[JVLR32]

It was from an early s4 v8 I think , Im not sure , it was used cause thats the bolt pattern that was on the manifold .

Rev limit was 8000 rpm based upon the rules of procar at the time , it was later lowered to 7300 rpm

Bug racer, were they still fly by wire set up?
How can i get my hands on this set up?( s4 throttle body)

[Matty VWR 32L]

thanks J nice stuff...

Extreme Exhaust has just done my car...No more flapper or that big tin can back to first muffler is all changed! i can only sai ...OMG... the .:R rumbles wat a difference

Just also looked at throttle body to adapt A Gen 3 mmmm..two will need to happen and i will stand corrected 1. after market ECU that runs a live by wire programme 2. and someone smart enough to set it up.

hey jvl any pics of the new exhausts? Sounds very interesting as i havnt made up my mind on what exhaust i want to run with n also do want the r to roar with a difference!

[JVLR32]

hey jvl any pics of the new exhausts? Sounds very interesting as i havnt made up my mind on what exhaust i want to run with n also do want the r to roar with a difference!

I do matty, do you have camera phone? send me your number....
Iam findin theres alot more bottom end....its a deep R rumble m8

[Matty VWR 32L]

I do matty, do you have camera phone? send me your number....
Iam findin theres alot more bottom end....its a deep R rumble m8

hey mate pm sent

cheers matt

[G-rig]

so with wat iam thinkin.....with head work close to 400hps

There is a bit of talk on Mk5 about the ABT supercharger kit, currently coming in at 23k. That's the way i'd go, but understand the ECU's are the problem with MK4 tuning.

You should still get some headers first anyway and see how you like it (if they are proven ones).

[JVLR32]

There is a bit of talk on Mk5 about the ABT supercharger kit, currently coming in at 23k. That's the way i'd go, but understand the ECU's are the problem with MK4 tuning.

You should still get some headers first anyway and see how you like it (if they are proven ones).

Iam prety happy wats achieved with exhaust at the mo Greg.....its just OMG..
Not really interested in supercharge m8 N/A all the way for me...

The thing is will the headers really make that much difference for dollar matching hps????

[G-rig]

[QUOTE=JVLR32;397671
The thing is will the headers really make that much difference for dollar matching hps????[/QUOTE]

Not really but you have to get whatever gains you can. Cams will ruin the daily drive IMO, while headers dont.

Sounds like this exhaust is good, did you get much out of it (ie dyno before and after would be cool as sound is a bit deceptive). Exhaust on the mk5 doesn't unlock much if any.. Should put a video/thread up anyway, sounds like you're stoked with it..

[JVLR32]

Not really but you have to get whatever gains you can. Cams will ruin the daily drive IMO, while headers dont.

Sounds like this exhaust is good, did you get much out of it (ie dyno before and after would be cool as sound is a bit deceptive). Exhaust on the mk5 doesn't unlock much if any.. Should put a video/thread up anyway, sounds like you're stoked with it..

Iam not pullin anybodys leg....honestly it pull harder from take off, it felt real nice very noticeable...

Ok sound very deep, seen afew vids of Rs with vids.....mmm sorry no offence
M8 to convince anybody without figures is hard...iam talkin a figure stated by exhaust bloke 15 to 20alot more down low

[dainese]

Iam not pullin anybodys leg....honestly it pull harder from take off, it felt real nice very noticeable...

Ok sound very deep, seen afew vids of Rs with vids.....mmm sorry no offence
M8 to convince anybody without figures is hard...iam talkin a figure stated by exhaust bloke 15 to 20alot more down low

don't worry mate.
Trent and I can vouch for you.

Definitely a difference, all the way through. So much more freer, and eager.

I recorded some clips, but I don't have a firewire port on my computer, so they are stuck on my camcorder for now.

but you can have a listen to this one. it was done with a canon ixus 80.

http://www.mediafire.com/?dirfgkzymmj

[G-rig]

JVLR32 have you looked into Schrick cams yet?
(not sure if they are worth it on a mk5 but i'd probably look at getting 264/26

[JVLR32]

JVLR32 have you looked into Schrick cams yet?
(not sure if they are worth it on a mk5 but i'd probably look at getting 264/26

not as yet greg....to be honest iam lookin down another path of make of cams...Still need a test dummy head

[Bug_racer]

not as yet greg....to be honest iam lookin down another path of make of cams...Still need a test dummy head

Your not going to find anyone that will make a set of cams . They are far too complex and wont justify the cost of setting up a jig to make them . Schrick are the only ones who will make them . The Techtonics ones are just reground oem units

[Bug_racer]

Bug racer, were they still fly by wire set up?
How can i get my hands on this set up?( s4 throttle body)

You need to work on restrictions first before you do certain upgrades . The gains would be minimal without at least a decent set of cams/exhaust and intake .