Anyone converted to a 2.5 lump on a wrx bugeye.

Trying to weigh up options and thinking of a 2.5.

problem is, i'm worried the added TQ from the 2.5 will blow the standard box up soon after.

im on a tight budget and will be getting friends to help put block in/rebuild.

not sure whether to get a 2.5 ready made, 2.0 forged ready made or buy in bits and rebuild.

was running 361/322 before it went but im aiming for 380/350 with an E85 Map

cheers for any help in advance.

 

Hi
I never looked back, but i had the same problem. At the time, i was running 409hp with 420 torque on a standard box which did'nt last long when i had the 2.5 fitted.

It then went through 2 more standard boxes! Then i opted for the 6 speed,8 miles dowm the road from having it fitted the clutch was ripped to bits!!.

Just my eperience,but looking back i should have just put a 6 speed in it from the off

Dannytwo

 

It depends what turbo you bolt to it and what boost you run. If you limit the size/boost of the turbo and don't let the 2.5 play until you can afford a 6 speed or PPG gearset, then that'd be an option. I've been through this recently on my WRX blobeye. I went for the 2.5 with JDM 6 speed in the end as had the funds, but I know someone who was happy to go 2.5 with an 18g and has had great success with it, with the option to upgrade further as or when required.

Either way, the 2.5 is a no-brainer these days unless you have oodles of dosh for something more exotic.

 

Cheers lads, really helpfull.

cant afford a new box at present. cant afford engine really lol

will be running 18g to start but there is always room to upgrade. but after gearbox.

so its not worth going 2lt forged when you can get a 2.5 for same money?

 

I can only speak from my own experience, but if you chat to someone like David at API, you'll get the options for your budget laid out to you.

 

I would say theres alot more scope with the 2.5

 

Try Alan Jeffrey and ask about his 2.1 stroker motor, (£1800-ish for a short motor), good for 500 bhp, but revs like an STI to 7800 rpm, if you like that ( I do !)

HTH

dunx

 

Alan has kindly already pm'ed me. will be talking with him on phone tomorrow and see what happens.

still dont know what to do yet

 

Dave, I've e mailed you.

 

nothing recived mate.

navydog21@hotmail.com

 

Never clicked send should have it now

 

just recieved

 

2.5 & limit it to 350 touque

 

If you want common sense at a common sense price call me.

David APi

01926 614333

 

HELP PLEASE.

A 2.5lt sti engine will fit straight into the car? what is needed for it to run? I'll have the wiring loom and ecu. Is there anything else that needs doing? how hard is it to change the loom?

cheers in advance

 

Dave what model is your car ? I cannot find any mention of it to be able to advise whether a 2.5 is appropriate.

In some cases it causes more trouble than it is worth.

Generally, a 2.5 short motor will fit to any age of Subaru heads. Some times not very well and that is where the expertise of people like us come in and steer you down a path that will not cost an arm and a leg to get it to run right.

So many conversions get done with poor advice, that they either get left to run badly or sold on as an unfinished project, as the owner has run out of money.

Tell us what model you have, then we can all give relevant advice.

Good Luck, no matter what - David APi

 

That commet makes this place what it is, FULL of helpfull companies and individuals that help everyone out even if they don't get the business! Well done David @ APi (I'll be looking into this in the near future too)

Sorry to hi-jack.

Stalked!

 

Dave, I strongly suggest you take APi David up on his offer of a chat, mate.

No BS there and you'll get sound advice.

Ns04

 

phoning in a minute

so many things going on in my head

 

aye, them voices can be a right pain in the Ar$3 lol

 

Massive thanks to David@API

Made everything clear with no BS. Exactly what i needed. Made my mind up on what i want to do. Just acase of finding funds for it

Cheers for the information David, well and truely lived up to your reputation

 

**** off you

 

Ah!, that 'll be the APi thought transfer technology. When you ring, our phone system captures your brain ferquency and then we can transmit messages back to it convincing you to spend money.

Sort of like the voodoo sticking pins in thing.

Some are more susceptible to it than others; eh, Pete/ Staffi

David

 

So whats it to be then ?

 

have the same problem before wen bottom end went. after computing cost i didnt go the rebuild route instead went o for a full conversion GDB motor n unde chassis assembly much cheaper. currently in the rewiring stage but all the motor went straight in

 

After few chats/emails with David, i'd be silly not to go 2.5conversion. The difference in TQ would be massive and I wouldnt have to go E85 route to get more out of 18g Turbo.

Just trying to get the pain of xmas out my hair. It will be done but when is another story.

Cant wait to have it back, missing her already and its only been 3 days

 

What sort of figures are you expecting to achieve after the 2.5 conversion, considering that you had 361/322 before?

I'm thinking about a 2.? conversion but am unsure what to go for really

 

The torque should go through the roof but being on a TD05 / 18G the actual horsepower won't go up far.

I'd be happy to see 380 / 380 ish

David

 

That's a nice increase in torque I'm hoping to add around 100/100 to my set up this year, so it sounds like a 2.5 might be the way to go (for starters...)

 

I'd hope the torque figure would be higher than bhp as it's done its best work by 5250 revs.