Audi RS4 engine
Attackbuilder - 9/1/10 at 09:45 PM
Hi... I'm new to this forum and looking for a bit of advice.
I've just started my first build, an Attack K1, and already its started to get a bit crazy!!! I'll be using an Audi RS4 engine, 4.2 ltr and
good for 440 bhp, AP brakes, ferrari 355 running gear etc!! ( told you it was getting silly ). Anyway, i am looking to see if anyone can recommend a
good chassis loom supplier. I'll use the engine loom from the Audi, but want to run ancillaries througth a smaller, lighter loom...any ideas???
Would be interested in hearing from anyone who has used this motor in a kit and any problems / ideas you might have. Thanks
Ben_Copeland - 9/1/10 at 09:50 PM
Can you not just make your own wiring loom. Once you get your head round how it all works, it's relatively easy.
ruudbeckers - 9/1/10 at 10:24 PM
I though the K1 Attack was no longer sold as kit? Or did you buy this kit many years ago and have you now just started?
liam.mccaffrey - 9/1/10 at 10:24 PM
premier wiring have a good rep linky
zilspeed - 9/1/10 at 10:51 PM
Scootz will be along shortly.
scootz - 9/1/10 at 11:58 PM
An hour late... but I'm not well! 
Sicked up all day cos I took too many painkillers last night! God I feel awful!
Just got out of my pit to have some soup... think I'll be seeing it again in a mo!
Will be back in full action tomorrow!
jeffw - 10/1/10 at 07:53 AM
The V8 in the RS4 is rated by Audi at 414BHP but most of them make 370BHP ish on Rolling Roads. This is due to two factors, 1. the FSI side of the
engine means that the inlet valves get coated with oil which makes a complete mess and 2. Audi turned down the power via the ECU on a software
revision after a few early failures. Have a look at this thread for more infor http://audisrs.com/ftopic5000-0.php
You will be very lucky to get 440BHP without spending a significant amount of money.
[Edited on 10/1/10 by jeffw]
snapper - 10/1/10 at 08:49 AM
Eddie99 has a company making up a sort of DIY loom kit worth talking to him.
scootz - 10/1/10 at 11:42 AM
quote:
Originally posted by jeffw
The V8 in the RS4 is rated by Audi at 414BHP but most of them make 370BHP ish on Rolling Roads. This is due to two factors, 1. the FSI side of the
engine means that the inlet valves get coated with oil which makes a complete mess and 2. Audi turned down the power via the ECU on a software
revision after a few early failures. Have a look at this thread for more infor http://audisrs.com/ftopic5000-0.php />
Bit unfair Jeff... the 414 bhp claimed figure is at the flywheel (as per most manufacturers standards)... so 370 at the wheels is about in line with
'normal' drops!
As for who to go to for electrics, etc... linky
belgian2b - 10/1/10 at 11:49 AM
Hello,
i am runing the KMS ECu on my ZX12 engine.
i ma very pleased of it.
Very easy software and the modular system allows you to implemetn in function of your needs.
The KMS ECU can drive all engine ancillaries ( cooling fan, dasboard,....) but it can not drive the lights , repeaters, etc...
Gerardo
scootz - 10/1/10 at 12:01 PM
Not met anyone who's not impressed with them Gerrrdo... certainly seem to be the leaders in Audi V10 / V8 transplant scene!
Just wished I'd gone to them at the start... pretty expensive, so I thought I'd try and do most myself - bit of a mistake and has probably
cost me more, but hey-ho... you live and learn!
[Edited on 10/1/10 by scootz]
Attackbuilder - 10/1/10 at 06:14 PM
Cheers for the replies ....
440 / 370 bhp, not that fussed really, its all more than enought in a kit !!!!
The other thing i'm looking at is the gear change, thinking of making a system using hydraulic cylinders, two moved by the lever and two
replicating the movement at the box...
Has anyone any experience with making / using a system like this???
In reply to ruddbeckers, ur right, they don't sell the kits anymore!!! I manage to get hold of a kit with some missing parts and have replicated
parts as i go along...Been on it for about 3 months now... Hopefully ready for next summer ( 2011 ) !!!!!
NS Dev - 10/1/10 at 07:41 PM
hmmm interesting!
Never seen it done and I have seen a lot of things!
Don't see why it wouldn't work either. Source of cylinders could be tricky, but if the seals in some small pneumatic cylinders were happy
with the fluid used then all should be ok.
I've used remote pilot hydraulic operated spool valves in my past and they work perfectly, in fact probably the most foolproof and reliable pilot
valve systems, and that isn't really any different.
jeffw - 10/1/10 at 09:48 PM
quote:
Bit unfair Jeff... the 414 bhp claimed figure is at the flywheel (as per most manufacturers standards)... so 370 at the wheels is about in line
with 'normal' drops!
The 370 BHP figure is at the crank....Most RS4s make around 30-40 BHP more than the S4 (B6 or B7 wnich is 340 standard). I've done several
Rolling Road days with my B5 RS4 and the best B7 result I've seen (out of 20+ cars on the rollers) was 390 BHP for a full Milltek and a remap.
[Edited on 10/1/10 by jeffw]
Attackbuilder - 10/1/10 at 09:56 PM
Thanks NS Dev
Just started measuring up the throw required. Can start looking for cylinders tomorrow......I can't see any reason why it won't work and
should be reliable too. Can also change the gear lever throw by using different cylinder sizes ??!!!??
Anybody else interested if it works, would be cheaper to make a couple at the same time ?????
scootz - 11/1/10 at 11:22 AM
I would!