cosworth internals

***berdugo*** · 01-06-2007, 06:32 AM

does anyone know what is the maximum rpm of cosworth internals like piston, crankshaft and conrods. thanks

**evilSTi7** · 01-06-2007, 02:55 PM

max rpm is determined more by heads.

whitson01 · 01-06-2007, 04:25 PM

+1
also, how much rpm's are you wanting to turn and why?

AllWheelDriven · 01-07-2007, 11:51 AM

The cosworth crankshaft is good for over 8500
http://video.google.com/videoplay?do...194&pr=goog-sl
(video of 530whp and 8500rpm)
pretty sure this car has a 9000rpm map also.

caballero_sti · 01-07-2007, 12:23 PM

damn...that's a f*cking monster...

mofoSTI · 01-07-2007, 01:15 PM

I dont think my bonner is going to go down inside of 4 hours....maby I should call my doctor.

IndySTi · 01-07-2007, 04:26 PM

Holy Sh....!!!!

***Turbineguy*** · 01-07-2007, 04:36 PM

Must....resist....Cosworth....

neal0124 · 01-07-2007, 05:20 PM

I talked to the owner of dynocomp about their car. It has the cosworth shortblock and heads. They have a 9500rpm redline but are safe going to 10,000rpm. That flat 4 at 9500 sounds awesome.

**evilSTi7** · 01-07-2007, 05:55 PM

Quote:

Originally Posted by neal0124

I talked to the owner of dynocomp about their car. It has the cosworth shortblock and heads. They have a 9500rpm redline but are safe going to 10,000rpm. That flat 4 at 9500 sounds awesome.

yea, but you have serious oiling problems once you go past 8k. But if you have enough money to buy a full cosworth long block then you should be able to scrounge up the cash for sump.

Flycaster · 01-07-2007, 07:09 PM

Quote:

Originally Posted by neal0124

...They have a 9500rpm redline but are safe going to 10,000rpm...

"Safe" is relative. In a race car, with seasonal rebuilds, maybe. OTOH, if they think it'll last for high miles on the street pulling those kind of revs, they're smoking rope.

01-06-2007, 06:32 AM	#1
*berdugo* Platinum Member Car: Silver Euro 07 STi Fav Mod: Modify the law! Remove the speed limits! Location: Philippines Posts: 562 Join Date: Dec 2006 Trader Rating: (0)	cosworth internals does anyone know what is the maximum rpm of cosworth internals like piston, crankshaft and conrods. thanks This ad is not endorsed by this member. Please register or login to hide this ad.

01-06-2007, 02:55 PM	#2
evilSTi7 The Hoff Fan Club, member #001 Car: 05 WRB/Gold Fav Mod: Hood Scoop Homer Location: Where ever The Hoff is! Posts: 10,325 Join Date: Jul 2004 Trader Rating: (4)	max rpm is determined more by heads.

01-06-2007, 04:25 PM	#3
whitson01 Spec C Club Car: 06 acura tsx Fav Mod: soon to come Location: east TN Posts: 1,417 Join Date: Dec 2004 Trader Rating: (3)	+1 also, how much rpm's are you wanting to turn and why?

01-07-2007, 11:51 AM	#4
AllWheelDriven Junior STI Driver Car: OBP,2005,STi Posts: 69 Join Date: Nov 2006 Trader Rating: (0)	The cosworth crankshaft is good for over 8500 http://video.google.com/videoplay?do...194&pr=goog-sl (video of 530whp and 8500rpm) pretty sure this car has a 9000rpm map also.

01-07-2007, 12:23 PM	#5
caballero_sti STI Driver Car: 05 STi Fav Mod: GT35R Location: Sincity Posts: 285 Join Date: Sep 2006 Trader Rating: (1)	damn...that's a f*cking monster...

01-07-2007, 01:15 PM	#6
mofoSTI Spec C Club Car: 08 STI,sr20det 510 Fav Mod: boob job for wife Location: springtuckey, OR Posts: 2,441 Join Date: Sep 2004 Trader Rating: (0)	I dont think my bonner is going to go down inside of 4 hours....maby I should call my doctor.

01-07-2007, 04:26 PM	#7
IndySTi STI Driver Car: '04 AW STi Fav Mod: Ghetto Fabulous Intake! Location: The home of the Indy 500 Posts: 259 Join Date: Aug 2006 Trader Rating: (0)	Holy Sh....!!!!

01-07-2007, 04:36 PM	#8
*Turbineguy* Non-Reformed Meth Addict Car: '06 WRB Fav Mod: A laptop and tuning software. Location: Swampbilly Central Posts: 2,386 Join Date: Feb 2006 Trader Rating: (8)	Must....resist....Cosworth....

01-07-2007, 05:20 PM	#9
neal0124 Senior STI Driver Car: 05 STi Fav Mod: Whiteline sways, ohlins coils, cusco motor mounts Location: Castaic, Southern Califor Posts: 318 Join Date: Dec 2005 Trader Rating: (0)	I talked to the owner of dynocomp about their car. It has the cosworth shortblock and heads. They have a 9500rpm redline but are safe going to 10,000rpm. That flat 4 at 9500 sounds awesome.