Has anyone done this?

Would it make 500bhp @ 1.5 bar boost?

 

Im not talking about track work or anything just road use so 90% off boost but having the power there for a rip every now or again.

 

you would have to be bloody brave!

350 tops i'd say...others may differ in opinion. You have to remember its a power vs reliability game...

 

BANG!!!!!!!

 

1.3 bar boost max on a standard EJ257 bottom end

 

I think the standard pistons are not supposed to be great. Def wouldnt want to take them to 500bhp!

 

most say 400 is the ceiling some have pushed them to up and around 450. how long is a peice of string?? I wouldn't want to drive something knowing that any minute it can let go

 

Chuck some "drop in" forged pistons in in and see how it goes. I think it would cope.

Stock pistons will be the downfall, everything else would probably be okay.

For a while anyway

 

dont do it
even a well built 2.5 wont live with 2 bar boost even now and then
trust me iv tried

 

i think the op wants to run 1.5 bar but yes not advisable.

 

OEM ECU won't run 2Bar anyways

 

OEM ECU will run as many bar as you like. You can always change your map sensor. I have always done my own car mapping and lots of other cars too.

My advice is just do it.

P.S. I am running 1.8-1.9bar with my 60-1 turbo and 2.0L stock block. (Engine has done 200 000 kilometres (124000 Miles) so far..)

 

With E85 it can be possible but its a big risk to take.

 

Which car is your 2.0l stock block from?

 

Seems no has done it, gonna head over to the yank forums see if anyone on there runs 1 as they love bolting big turbos onto stock engines lol

If i keep it at 1.5 bar and change from a gt30 to a gt35 how much power increase will i get currently at 450.

thanks.

 

Are using meth at 1.5b?

 

Heaps of US guys chuck 35s on stock motors, but then they dont care about lag or running an over size turbo for the power required.

Stock block with a 35r capped at 1.5bar and on a very conservative tune i think you would probably be alright...

For a while

 

im in the US now, and after speaking to a few people here, they just about touch 350 bhp with a gt30 - as the octane levels are really low.

 

http://forums.nasioc.com/forums/show....php?t=1878366

lol

 

Oooooooops

 

MY02 WRX Still going strong..

 

I'm "accidentally" running 2 bar on my 2.0 STI with a GT3076... It's enough.
A 2.5 may be able to spool a bigger turbo quite well, but why if you can't use it where it's performance is better, I.E. High boost at high revs.

IMHO

dunx

 

i'm going to be running an md321v on standard engine after christmas, before my 2.1 comes, lets see how long it lasts

 

yank tunign and uk tunign is totaly different. they just throw big turbos and hope it will hold. Also there claimed figures arn't the same as ours.

as far as 500 on the stock motor, thats what vettle had in his car in korea,,,, lol

 

boys, boys, boys. 500 genuine hp on stock 2.5 internals. you are all having a laugh. bottom end will last about 5 minutes ffs.

 

I just love these big power bragging threads .

 

well just you remember my **** is always bigger than yours.

 

^

 

yeah but mines heavier,,,,,,

 

1.5 bar on a gt35r and a 2.5ltr block will be more than 500bhp. I know dazdavies did this for a short while and had his running at 450bhp but it wasn't great for the engine.