2.5 400bhp turbo options?
15 December 2011, 04:20 PM
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2.5 400bhp turbo options?
As above, Ive just built a forged 2.5 to go in a V5 STI, it's running 2004 WRX heads and an 8.5:1 C/R, jut wondered what your thoughts are on turbo options?
15 December 2011, 04:44 PM
#3
Well i can HIGHLY reconmend the SC46! I had it mapped conservatively to safeguard the rods and it made 440/400 on vpower and 410/390 on 95ron ..... and its sooooo feckin drivable and spooly!
for 400 on the nose though you could consider the SC42 which is also a ball bearing so youd get better spool but slightly less top end beans.
If this is out of budget, the SC40 is the largest sleeve bearing they do, has seen some good results too!
for 400 on the nose though you could consider the SC42 which is also a ball bearing so youd get better spool but slightly less top end beans.
If this is out of budget, the SC40 is the largest sleeve bearing they do, has seen some good results too!
15 December 2011, 04:51 PM
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Another SC46 billet suggestions here. Absolute no brainer with spool and power characteristics on the 2.5 
15 December 2011, 05:26 PM
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Andy,
Mines running an MS321x (V with smaller exhaust housing) It's one of your 2.5's as you know but STI AVCS heads of course! 440BHP but on std ported headers. I'll pop the graph up if you want.
Mines running an MS321x (V with smaller exhaust housing) It's one of your 2.5's as you know but STI AVCS heads of course! 440BHP but on std ported headers. I'll pop the graph up if you want.
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15 December 2011, 07:58 PM
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Thanks for the input folks, He was looking at an MD, I suggested the SC range, I'll pass on the info and he can make his choice, should go well in a Classic )))))))))))))
)))))))))))))
15 December 2011, 08:01 PM
#12
Well i can HIGHLY reconmend the SC46! I had it mapped conservatively to safeguard the rods and it made 440/400 on vpower and 410/390 on 95ron ..... and its sooooo feckin drivable and spooly!
for 400 on the nose though you could consider the SC42 which is also a ball bearing so youd get better spool but slightly less top end beans.
If this is out of budget, the SC40 is the largest sleeve bearing they do, has seen some good results too!
for 400 on the nose though you could consider the SC42 which is also a ball bearing so youd get better spool but slightly less top end beans.
If this is out of budget, the SC40 is the largest sleeve bearing they do, has seen some good results too!
Jay
15 December 2011, 10:16 PM
#14
Depends on compression ratio. flow rate, typical BHP is related to the turbo as opposed to the engine cc, as long as you are not well ouside the compression map of the turbo.
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