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-   -   Need more power (bugeye WRX PPP) (https://www.scoobynet.com/general-technical-10/720688-need-more-power-bugeye-wrx-ppp.html)

Boro 24 October 2008 10:33 PM

Need more power (bugeye WRX PPP)
 
Having been disappointed with the performance of our recently bought bugeye WRX PPP, i have been planning the next stage of mods in the quest for more power.

The car ran 225.1bhp with the following mods:-

Baileys VTA dumpvalve (now removed and replaced with OEM recirc)
Cone Induction Filter (being removed and will be replaced with OEM airbox with k&n panel filter)

At the time of the dyno run it was probably on 95RON as it came with 1/2 tank of petrol and we took it straight for a dyno session. Is now being run on V-Power only.

We are "hoping" the fact it had a cone filter it wasnt mapped for and the fact it was poor quality fuel that a re-run will provide better results.

To help gain a bit more power, were changing the catted up-pipe to a decat version.

So, with the right air filter, a standard DV, a decat up-pipe and a remap and V-Power, we're hoping for better things.

Now for the questions, before spending £'s on a remap.

1) Whats the going rate for a remap and where would you recommend (were in Cornwall)?

2) Before getting a remap, would it be worth making any other changes/easy mods?

3) What power should the above make?

Thanks :D

scoobyDAZZA 24 October 2008 10:51 PM

decat the whole exhaust

Bob Rawle visits ap motors frequently, i know he's coming down in the next 2 months (he doesn't know yet,lol) , he can tek 3 it, or fit you a simtek.

your limited really to the turbo, TD04. but you should see 270-280 imo

or get a vf34/35 for 340 - 350 bhp.

Midlife...... 24 October 2008 11:30 PM

Stop messing around..flog your car and buy a well sorted Bugeye running 400 BHP LOL

Cumbrian Scoobs :: View topic - Tastefully Modified Bugeye

I'm running a similar bugeye with 400 odd BHP and I doubt if mine is worth much more in the current climate :)

Boro 24 October 2008 11:52 PM

Hey Dazza, its only got 1 cat and thats in the up-pipe, so it will be fully decatted once thats out. What's tek3 remap?

Would simply be doing what i have planned PLUS a bigger turbo be enough to get 340ish or would i need to do more, ie fuel pump, injectors, etc?

joz8968 25 October 2008 12:26 AM

tek3 = abbr. for "EcuTek3". Version of software able to reflash your ECU with a custom remap, via the OBD socket under your dash using a laptop and OBD connecting cable.

chrisUK300 25 October 2008 12:59 AM


Originally Posted by Boro (Post 8221637)
Hey Dazza, its only got 1 cat and thats in the up-pipe, so it will be fully decatted once thats out. What's tek3 remap?

Would simply be doing what i have planned PLUS a bigger turbo be enough to get 340ish or would i need to do more, ie fuel pump, injectors, etc?

Im planning a very similar route as you. I was told for 340bhp I would need:

VF34 or 35 Turbo
STI Injectors
Uprated fuel pump
and possibly a STI Intercooler or front mount.

Obviously thats on top of a full decat and a remap would be required.

Boro 25 October 2008 01:41 AM

What sort of money would that little lot cost?

Remaps are about £500 including vat are they not?

dynamix 25 October 2008 07:10 AM


Originally Posted by Boro (Post 8221448)
where would you recommend (were in Cornwall)?

Alan Jeffries @ Engine Tuner has a good reputation in your area.

< < < ENGINE TUNER > > >

chrisUK300 25 October 2008 10:11 AM


Originally Posted by Boro (Post 8221703)
What sort of money would that little lot cost?

Remaps are about £500 including vat are they not?

I reckon if you shop around, and get some parts 2nd hand you can do it for around £1200, thats my plan anyway :lol1:

Steve_PPP 25 October 2008 10:36 AM


Originally Posted by Boro (Post 8221637)
Hey Dazza, its only got 1 cat and thats in the up-pipe, so it will be fully decatted once thats out.

Eh? I thought your car was a standard WRX PPP when you had it on the rollers with the 95ron fuel (i posted in that thread too).

Unless you've changed the whole exhaust system since (and if you have, get a remap now) you have three cats. Up-pipe, downpipe and a cat in the mid-pipe (plus a resonator in the centre pipe before the backbox!).

Changing the up-pipe on my bug wrx ppp has helped spool a little bit, but theres no other noticable gains - it is the smallest of the 3 cats after all..... this diagram shows it well :thumb:

http://wrx.grapon.com/techdocs/wrx-i...st-diagram.gif

If you're going after power anywhere 260-280bhp in the long run, you'll need to change to a full decat exhaust system and get it remapped. :)

dunx 25 October 2008 11:00 AM

cat in the up-pipe CAN cause problems after raising the boost.... IMHO

DunxC

chrisUK300 25 October 2008 11:48 AM


Originally Posted by Steve_PPP (Post 8221914)
Eh? I thought your car was a standard WRX PPP when you had it on the rollers with the 95ron fuel (i posted in that thread too).

Unless you've changed the whole exhaust system since (and if you have, get a remap now) you have three cats. Up-pipe, downpipe and a cat in the mid-pipe (plus a resonator in the centre pipe before the backbox!).

Changing the up-pipe on my bug wrx ppp has helped spool a little bit, but theres no other noticable gains - it is the smallest of the 3 cats after all..... this diagram shows it well :thumb:

http://wrx.grapon.com/techdocs/wrx-i...st-diagram.gif

If you're going after power anywhere 260-280bhp in the long run, you'll need to change to a full decat exhaust system and get it remapped. :)

Shouldnt that be 2 cats? The midpipe is decatted as part of the PPP AFAIK

Boro 25 October 2008 02:05 PM

Ahh, thanks Steve, i was under the impression PPP left only 1 cat in the up-pipe :confused:

PPP defo removes the rear cat in the mid-pipe, but i wasnt aware there were TWO more :confused:

Can someone else confirm this as would prefer a full decat to make the most of the remap.

Thanks :thumb:

Steve_PPP 25 October 2008 05:16 PM


Originally Posted by chrisUK300 (Post 8222030)
Shouldnt that be 2 cats? The midpipe is decatted as part of the PPP AFAIK

Yes, you might be correct.

I was under the impression that the PPP made cat changes on the STI but not on the WRX. However, i've had my car up on ramps today and noticed that the midpipe is decatted, but it visually still looks like its got a cat in it - its a straight through pipe, but with the headshield shaped like theres a cat there :cuckoo:

Confused.com :lol1:

But yeah, the downpipe is the one you'll need to decat to get big gains, but you'll need a remap to cope with this - t'is the only reason i haven't got round to fully decatting mine yet!

chrisUK300 25 October 2008 06:45 PM


Originally Posted by Steve_PPP (Post 8222543)
Yes, you might be correct.

I was under the impression that the PPP made cat changes on the STI but not on the WRX. However, i've had my car up on ramps today and noticed that the midpipe is decatted, but it visually still looks like its got a cat in it - its a straight through pipe, but with the headshield shaped like theres a cat there :cuckoo:

Confused.com :lol1:

But yeah, the downpipe is the one you'll need to decat to get big gains, but you'll need a remap to cope with this - t'is the only reason i haven't got round to fully decatting mine yet!

yeah it does look like a cat but its deffo a straight pipe. I made same mistake myself :lol1:

Boro 25 October 2008 07:59 PM

Thanks for the info, what options do i have for the downpipe? The up-pipe was from a classic which dont have cats in, but is it the same for downpipes?

scoobyDAZZA 26 October 2008 11:15 AM

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Boro 26 October 2008 01:26 PM

Just need a downpipe now Dazza.


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