CP Forged Pistons

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
Anything and everything to do with maintenance, modifications and electrical is in here for the Mk2.

Moderators: IMOC Moderators, IMOC Committee Members

ashley
Posts: 7628
Joined: Tue May 13, 2008 8:08 pm

Re: CP Forged Pistons

Post by ashley »

Peter Gidden - SBITS wrote:

Anyone wanting to boost higher than average would buy Wiseco's 8:1 pistions.


They do 8:1 pistons now? I thought Wiseco only did 9:1 for the 3SGTE...I'm off to check their website again....they make nice pistons!
MR2 Rich
Posts: 1582
Joined: Sat Apr 07, 2012 1:18 pm
Location: Harrogate North Yorkshire

Re: CP Forged Pistons

Post by MR2 Rich »

You've got CP's in yours, haven't you Ashley? :thumleft:
No 2 :(
ashley
Posts: 7628
Joined: Tue May 13, 2008 8:08 pm

Re: CP Forged Pistons

Post by ashley »

Yes mate- 8.5:1 out of the box for the 5S block, final CR was closer to 8.3:1...race fuel will help me run lots of boost :lol:
Peter Gidden
IMOC Affiliated Trackday Organiser
Posts: 10506
Joined: Tue Jan 25, 2005 9:49 am
Location: South Yorkshire

Re: CP Forged Pistons

Post by Peter Gidden »

ashley wrote:
Peter Gidden - SBITS wrote:

Anyone wanting to boost higher than average would buy Wiseco's 8:1 pistions.


They do 8:1 pistons now? I thought Wiseco only did 9:1 for the 3SGTE...I'm off to check their website again....they make nice pistons!


Just checked my accounts. Not Wiseco, Wossner. :oops:
ashley
Posts: 7628
Joined: Tue May 13, 2008 8:08 pm

Re: CP Forged Pistons

Post by ashley »

Yeah- it looks like you could get them from Wiseco, but it would be a "custom" order....i.e. $$$$$$$$$$ :lol:
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: CP Forged Pistons

Post by bobhatton »

MR2 Rich wrote:They have stuff better than V-Power?


Yes E85 and cheap racing fuel.
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: CP Forged Pistons

Post by bobhatton »

MR2 Rich wrote:Who does 7.5.1 forged pistons for these engines? If it is such a bad thing to do why are there so many forged pistons for these engines that are 9.0.1?



They all will do any compression you want.
Almost every engine I have built has had custom pistons.
The C/R is the most important part of the engine, get that wrong and the engine will never run correctly and give the best power output.

The higher comp pistons come from the USA where they use E85 and race fuel
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
Post Reply

Return to “MR2 MK2 1990 - 1999 NA & Turbo”