lunar tick

iTrader: (2)

I have an MY03 (blobeye) STI with uprated exhaust, headers, FMIC, Bob Rawle remap etc. Anyone here switched directly from a VF35 (ie standard) to an MD321H turbo?? I'm just wondering how much loss of spool up/gain in top end power there would be and how this would affect the overall driving characteristics? Any feedback appreciated!

Lateral Performance

iTrader: (20)

Lunar,

Here's a graph comparing a P1 re-mapped by Bob with the standard VF28, and then the same car re-mapped with the MD321H.

The same car made 408bhp/384ftlbs at the P1 rolling road day on Saturday, at DS Autos, who have a Dyno Dynamics dyno.

The car has standard internals, and runs circa 1.4bar, but please email Bob to confirm this, and get his opinion of the turbo.

Mark.

lunar tick

iTrader: (2)

Thanks Mark - that's a very helpful and interesting graph there. Seems the compromises are small and the gains very impressive

Slowboy Racing

Seems like money well spent.

Lateral Performance

iTrader: (20)

I've asked for a copy of the rr graph, and will post it as soon as it comes.

Mark.

fastboyslim

iTrader: (2)

Wow! I like this.

RA Dunk

You do realise this threads 'over' three years old do you?

prodriverules

iTrader: (52)

Then surely the gains would be even better with advances in mapping?

RA Dunk

I wouldent have thought so, if a turbo can only shift X amount of air at any given time then runs out of puff then thats as far as it will go even with advances in mapping, thats how I see it anyway but I'm often wrong.

fastboyslim

iTrader: (2)

Hahahahahaha!!!I posted on the thread so that i could find it a bit easier. This last find took me about two days.

Ian

iTrader: (10)

vf35 is a 400 bhp turbo isnt it??

dunx

iTrader: (3)

500 bhp with meth. mix and nitrous...

TonyBurns

iTrader: (3)

Im just wondering how long that P1 engine lasted at 400bhp on standard internals
Probably had 3 rebuilds since 2007

Tony

WhiteWagonMan

iTrader: (34)

Was just thinking the same Tony,that P1 is living on borrowed time me thinks.

jameswrx

iTrader: (4)

Why switch to the MD when you could just port the wastegate FFS

Big 'D'

, know of many other VF35 fitted classic Imprezas running 11s do we?

Want me to post a slip up or do you think the track was the wrong temp

Cheers Iain