hardsy555

as above what would be the best upgrade for this car, i would want a direct replacement without having to moddify the fitting. i would have about £550 to buy it. or maybe a tad more if i sell the existing vf35.

B0DSKI

iTrader: (17)

Y do u want to change the Turbo M8??

Plenty of other things to be done before u go down that route.

hardsy555

well with the mods i have i think i can get to about 350-360 bhp but for the next step i think its bigger turbo time.

B0DSKI

iTrader: (17)

What are your existing mods ??

Decent Turbo ie TD05 or MD321H is gonna cost u between £800 & £1400 then you gotta fit it and map so your gonna be looking at summin like £1200-£1600 all in.

Bit more than you've bugeted for M8

Dark

iTrader: (1)

You need a TD05-20G from Andy Forrest for ~£850 + vat. It's a straight swap, the oil & water pipes are an exact match. You should be able to sell the old VF35 for ~£300.

Assuming you have a 3" decat exhaust from the turbo back and an ECUTEK remap then you should be looking at ~380bhp.

Mark

hardsy555

thankyou mark that was the answer i was looking for
why is it i have seen these turbos going for alot less on ebay!! tdo5 18g for about 300 smackers, is there a difference.

andythejock01wrx

18g - a bit less power, and a bit less lag.

cookstar

iTrader: (6)

Not many 18g TD05's going for £300 mate, maybe 16g

andythejock01wrx

Fair point well made, Mr Star.

Andy.F

Some of them are only oil cooled and designed for lower temperature Diesel engine applications, if you do a search on jap warehouse turbos and see what comes up

Andy

GazTheHat

A big vote for the TD05/18g.

It's a great turbo. Car spools not to dissimilar from standard and pulls. If you were closer i could've taken you spin and use the bum dyno to decide for yourself.

Speak with AndyF about one of them.

I spoke to quite a few people when i decided on the turbo, quite a few wished they hadn't got the 20g due to lack of driveability and lag, or then they swapped to the 18g.

MD321h is also an option, but i can thoroughly recommend AF18g

Should give circa 360-370bhp without additives.

Barnesy

For the money you can't go far wrong than an 18 or 20g.
I'm running a 20g and have no issues with driveability or lag.

Dark

iTrader: (1)

I'm running an AndyF TD05-20G and the spool is exactly the same as the original VF35 on a MY02 STI with ported headers & up-pipe and 3" sports exhaust system.

Mark

hardsy555

thanks chaps thats a great help.

hardsy555

i may have got this completely wrong guys but....tdo5 18g seems to be the right one Ebay item no is 320140796090. whats the crack?

cookstar

iTrader: (6)

see post #10

hardsy555

fair enough but why does it say for the subaru impreza and it does mention water cooling pipes.

Andy.F

https://www.scoobynet.com/scoobynet-...urbo-ebay.html

https://www.scoobynet.com/scoobynet-...-td05-20g.html

There was also a thead where the guys at scoobyclinic could only get 330 bhp from one of their 20G's, having had one here I can tell you that a genuine MHI 18G or 20G compressor wheel is larger/taller than the JAW version. I know this as I was quite impressed by the casings and tried to fit one to a genuine 20G and it wouldn't fit over the compressor wheel without machining out to size !

hardsy555

ok thanks andy im sure you know alot more than me.