Getting an ST170 to 250bhp?
23-10-2009, 08:56 PM
#1
Getting an ST170 to 250bhp?
What kinda spec we looking at getting a ST170 engine to around 240/250bhp in N/A form?
Asking for a friend, But I believe it can't be forced induction as its for a racing class, can't be no more than 2.0 and he's after over 200bhp.
Cheers
Asking for a friend, But I believe it can't be forced induction as its for a racing class, can't be no more than 2.0 and he's after over 200bhp.
Cheers
23-10-2009, 10:27 PM
#2
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Mine was
11.8:1 C/R
CFM billet oil pump gears
Lightened and knife-edged crankshaft
Fully balanced bottom end
ACL Heavy duty aluglide bearings
ARP connecting rod bolts and main cap studs
All machining to fit bolts/studs
Shot peened steel rods
Stage 3 head with piper up-rated valve springs
Piper BP300 cams (284° in / 278° ex, 11.44mm lift in / 10.60mm lift ex)
Pistons pocketed to suit
Bores honed and new ford rings fitted
Lifters shimmed to suit
Kent cams exhaust pulley
VVT removed
Hayabusa bodies on cnc inlet
you can also get cat cams and retain the VVT etc. and a higher c/r with forged pistons + go for some huge valves if they will fit
11.8:1 C/R
CFM billet oil pump gears
Lightened and knife-edged crankshaft
Fully balanced bottom end
ACL Heavy duty aluglide bearings
ARP connecting rod bolts and main cap studs
All machining to fit bolts/studs
Shot peened steel rods
Stage 3 head with piper up-rated valve springs
Piper BP300 cams (284° in / 278° ex, 11.44mm lift in / 10.60mm lift ex)
Pistons pocketed to suit
Bores honed and new ford rings fitted
Lifters shimmed to suit
Kent cams exhaust pulley
VVT removed
Hayabusa bodies on cnc inlet
you can also get cat cams and retain the VVT etc. and a higher c/r with forged pistons + go for some huge valves if they will fit
08-11-2009, 09:05 PM
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Hi all I am new to this site but am looking at doing this very thing anybody got any more info about this???
Have spoken to cat cams think they are looking like the best option they also do a VVT delete cam so you can run a normal adjustable pully on the inlet side
Have spoken to cat cams think they are looking like the best option they also do a VVT delete cam so you can run a normal adjustable pully on the inlet side
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08-11-2009, 11:49 PM
#8
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went to geoff page racing the other day and he has a st170 dry sump race engine forged piston's and rods head work ect it's for sale wen it's finished he told me.
mite be worth a phone call.
mite be worth a phone call.
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