Best turbo for 400bhp on a 2.5
Any ideas for the best Turbo for the road/slight track day use for 400bhp ?? got a TD05 18g at mo and the power really drops off after 5500rpm ish.Does anyone have a 20g on their 2.5? Would this Turbo boost right up to red line at 7k?
Does that unit sit in oe position? Problem being i have the early manifold and a 90 degree hose straight up from turbo inlet. Could i still use this with the
md321T or would i have to twist ?
md321T or would i have to twist ?
Last edited by l70byb.; Aug 5, 2008 at 10:17 PM.
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Micky,
Neil's car (E M B above) did 365bhp/392lbft at on a 2.5/18G at 1.35bar peak IIRC, my car did around 375/420 (AP22 not RR) on a similar setup at 1.6bar peak.
18G has good power from 2500-5500 rpm but falls off rapidly after that, 20G will make 400/400 on a 2.5 with decent pistons and heads.
Have you gone for the ScoobyTeknix conversion? Quite a few of their conversions using std bottom ends are running around the 340-350bhp and 370-380lbft mark on VF2x/3x at 1.3bar ish, I wouldn't push more that that on std pistons.
Andrew...
Neil's car (E M B above) did 365bhp/392lbft at on a 2.5/18G at 1.35bar peak IIRC, my car did around 375/420 (AP22 not RR) on a similar setup at 1.6bar peak.
18G has good power from 2500-5500 rpm but falls off rapidly after that, 20G will make 400/400 on a 2.5 with decent pistons and heads.
Have you gone for the ScoobyTeknix conversion? Quite a few of their conversions using std bottom ends are running around the 340-350bhp and 370-380lbft mark on VF2x/3x at 1.3bar ish, I wouldn't push more that that on std pistons.
Andrew...
Last edited by AndrewC; Aug 6, 2008 at 02:06 PM.
no i am getting a 2.5 from lateral, and revolution are doing the swap for me as they are local (and it worked out a bit cheaper all inclusive
)
to be honest i was planning on simply running it with the 16g for a low down lag free car, which is what i have always wanted, but i have been getting "greedy thoughts"
350/350 is all i really want, or at least that is what i keep telling myself
)to be honest i was planning on simply running it with the 16g for a low down lag free car, which is what i have always wanted, but i have been getting "greedy thoughts"

350/350 is all i really want, or at least that is what i keep telling myself
You will want more and all the time you know that a turbo change at this point would have been so easy, instead it will double the mapping fees, double the fitting, double the work when a simple change would release the power that you are buying and save you money in the long run.
Ive got wiseco pistons so good for just over 400 hp as i have OE rods and gas flowed wrx heads so 7k rev limit!! i'll have a look at the other md units and the fp green
You will want more and all the time you know that a turbo change at this point would have been so easy, instead it will double the mapping fees, double the fitting, double the work when a simple change would release the power that you are buying and save you money in the long run. 

i can fit the turbos no problem myself, i converted the 16g to front entry while bored at work

to be honest, i have never wanted more then the 300/300 it has at the moment, as its fine for what i want


all i can say is i might end up converting the turbo to a 18/20g at some point, if i get bored
Problem is cash Simon
been offered a fp green for just $1500 shipped from U.S but 4 week wait and they will put lower price on for customs issues!! isn't a md321t bout 1200+vat and any extras?
been offered a fp green for just $1500 shipped from U.S but 4 week wait and they will put lower price on for customs issues!! isn't a md321t bout 1200+vat and any extras?







