Hi, this is my current parts list due to be fitted at the end if the month and then mapped by Andy Forest on the 9th of January. Is there anything else that I have not thought of for a safe reliable fast car??
Md321t turbo
800cc injectors
Intake pipe
RCM k&n and alloy trump with cold air feed
Alloy rad
Sti top mount intercooler
Walbro fp
Fuel labs fpr
RCM headers and venturi up pipe
Ngk pfr7b plugs
Hayward and Scott turbo back
Brd turbo jacket
6 puk paddle clutch and prospeed billet flywheel
Hawk eye sti 4 pot fronts and 2 pot rears
It's a 2003 blob eye wrx.
I know I need some gauges and was thinking about getting the AEM uego?

Stuart

 

A new gearbox...

 

 

its a good list of mods BUT with that turbo expect your engine and gearbox to die,wrx lumps are on the limit @ 350bhp maybe the odd time one will make more but that turbo is a 400bhp+ turbo

you need a 6 speed set up and at least a sti8 bottom end to cope

 

As above and some brembos prob best upgrade can advise.. if you do go over 400bhp then possibly fmic....

 

I'm afraid I'm going to say it, so....... you should really sell up and buy an STI.

 

Nice list although I would seriously consider another clutch if it's a road car on top of what the guys have mentioned above. They can be a bitch especially when stuck in traffic and quite harsh on the bite, there is no In between its either go or stop unless you ride the clutch everywhere up on high revs which kind of defeats the object and makes you look daft

 

This.....
and this....

 

Yeah I did think the gearbox would not last too long, I think it should take 400 as a daily drive and no tracking. The bigger front brakes is probably a good idea tho :-)

 

Aye I might swap the turbo it's a bit ott at the moment and get something more suited to a good 350..

 

if i were you i would fit everything else (apart from the clutch) a pink box exedy will be fine for you if you are only planning 350bhp,buy a vf34/35 or a td05 16g for 330-350bhp whilst you decide on what your going to do engine/box wise

 

Thanks, I think I will go for the exedy pink box. Was either thinking about the af td05 20g or the sc38? Or is that still too much?

 

I think you'll be pushing the box at 350 as a daily driver let alone 400. Yes people have done it before but there are always exceptions to every rule.

IMO, I'd be aiming for no more than 320-330 on the std wrx box.

 

Tbh I don't mind pushing the gearbox I can always get that replaced, it's more the engine I don't want to destroy.

 

It'll be fine with 400 if not driven hard on the track, (the 330-350 quotes are an STI owners thing) give the MAF/IAT sensor a quick blast with brake cleaner the week before the map.

Enjoy it, WRX engines aren't that expensive to replace. I've just sold a 2.5 nearly new Engine for peanuts.

 

Hi thanks for that positive feedback, I am the 3rd owner from new and bought it stock so it's not been modified/abused before me. I will definitely get the exedy pink box and just sell the Md321t for maybe a Andy forest 20g or the sc 38:-D

 

The gearbox fears are not just a STi thing mate, it's well documented that classic boxes fail at raised power levels similar to what you are aiming for.
Have a read of this posted earlier this month. Might be a different box to yours, but the effect could well be the same....
https://www.scoobynet.com/drivetrain...rbox-hold.html

And no engine is expensive to replace if you have the money.

 

Would the 5 speed ppg that jura has for sale a good buy and would it fit my 03 blob eye?

 

your gearbox isn't the limiting factor, the newage gearbox is quite strong and will cope quite well with 350hp. The wrx pistons and standard head bolts would limit any sort of reasonable boost on a bigger turbo. The VF34/35 is the turbo of choice as already mentioned.
Trev

 

its hit and miss with boxex,my 04 wrx box let go @ 263bhp and that had regular oil changes-no launches etc

 

Looking at the Andy Forest page for the wrx it seems that gearbox is an issue between 360 and 390 then forged internals and uprated gearbox 390 and above, if the car made 360-370 I would be happy. I'm not that aggressive with the car more that I like to give it a bit coming off roundabouts and slip roads.

 

My 03 wrx 5 speed took a lot of stick at Santa Pod and was on it's third clutch which shatterd on the strip and weakend 3rd which eventually went 6months later running 380hp and 450lbs torque.
Personally I think 360/370 is pushing it engine wise and around 340 is more realistic and sustainable.
Trev

 

+1

340 is considered fine for a wrx and about the limit so why risk another 20/30bhp when you probably wont notice the difference anyway

 

+1

Pointless having power you're scared to use.

 

[QUOTE=ScoobyNoob79;11294691]+1

Pointless having power you're scared to use.[/QUOTE

Haha who said anything about being scared to use it.
Stick to the topic and don't start making childish remarks. ]

 

[QUOTE=stoorty;11294698]erm i think you need to wind your neck in a little.

you should be scared to use it as 370bhp will probably make short work of your wrx engine.

nobody was making childish remarks-we are all pretty much saying the same thing but you dont seem to get it.

good luck to you in your quest for more power........

 

Hi Stuart

I would say you should be OK if car has been maintained properly,with new age WRX engines is something like lucky draw,some running them without the issue at 400bhp,some broke them at 350bhp,some run on them high 400's without the single issue

Gearbox again as above is lucky draw,some guys run them in high 400bhp without the single issue and some killed them in low 300's,really this is like you are treating gearbox,then gearbox will respond..In many eyes is same with PPG,when many people broke them in 400bhp,we run on PPG 555bhp and on previous engine 490bhp plus NOS without the single issue

You have all parts what you are need and you don't need anything,just luck I would say

Difference going from 300bhp to 400bhp is awesome and you will feel this difference and if someone say,20-30bhp difference you will don't feel,simply don't know what he talking,jumping from 450bhp on our wagon to 490bhp on meth has been there and you will feel difference straight away

TMIC and MAF can be yours limiting factor,but you should be able to make nice 400bhp and wouldn't be surprised if you will make close to 420-430bhp

If you are thinking to use some gauges,I would strongly recommend boost,Oil pressure,Fuel pressure and wideband


Jura

 

as said above, it seems you are chasing power figures.

If you dont plan on tracking it, 350bhp is ideal for a road car. Plenty power and spool, easier on your engine and box.

Trade in that MDX for a vf30 or 35 and spend the change on Brembos.

Believe me, Ive been there. I had 475bhp in a classic and it was totally unusable on the road. Spun the wheels in 3rd in the wet. My blob sti is much easier to use albeit the classic would have had it on the straights...........BUT most roads arent straight

 

[QUOTE=stoorty;11294698]What childish remark? Ohh, you mean the advise you didn't like to hear?

Ok then, how about, do what you want, enjoy the power before a) your engine lets go, b) your tranny lets go, c) you write it off

 

So you've chosen to take offence at some well intentioned advice being offered, good move

The remark about being scared to use the power was (I'm sure) was not aimed as a stab at your masculine driving prowess and bravery. It was more about being rightly concerned about causing damage to your car with the extra power available.

In spite of what you might have seen and read on here, not everyone is a pi55 taker mate.