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Forged pistons #1641198
19/05/2020 11:36
19/05/2020 11:36
Joined: Feb 2006
Posts: 5,375
Essex
Trappy Offline OP
Club Member 1834
Trappy  Offline OP
Club Member 1834
Forum is my life

Joined: Feb 2006
Posts: 5,375
Essex
The Coupé is running terribly at the moment and Rog suspects it might need new pistons. I did a half arsed job back in 2009 and went for Wossner pistons with standard rods. If it does need new (and we're not sure just yet as it needs pulling apart), then I will do it properly this time.

I'm looking around for pricing and options but the only ones I can find are Wossner. I'd like to go for a higher CR piston giving the choice. I emailed Accralite (Omega) but theyo only 'manufacture to order' and need a minimum order of 20 (so four sets).

Does anyone else make or sell forged pistons for the 20v Turbo?

It's probably worth asking about rods too. What are the current options?

I've searched through the forum but it seems the tuning scene left here long ago and moved to the Facebook groups...


F****** b****** thing...
Re: Forged pistons [Re: Trappy] #1641204
19/05/2020 15:56
19/05/2020 15:56
Joined: Dec 2005
Posts: 17,350
Staffordshire
Nigel Offline
Forum veteran
Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,350
Staffordshire
Sorry to hear it's not running right - I also made the mistake of going for forged pistons and standard rods - in the end I bent a rod, so had to go for forged rods anyway....

I also killed a set of forged pistons - they were well over 100,000 miles old and I ran 2 bar on race fuel and melted the rings into the ring lands

At that point, I rebuilt with Accralite pistons, with a slightly raised CR for better off-boost response

Why not just buy my car instead? You know it makes sense..... ;-)


[Linked Image]
Re: Forged pistons [Re: Trappy] #1641208
19/05/2020 17:07
19/05/2020 17:07
Joined: Feb 2009
Posts: 225
london
L
lenzoferrari Offline
Making a profit
lenzoferrari  Offline
Making a profit
L

Joined: Feb 2009
Posts: 225
london
Sorry to hear that trappy
I went for a set of JE piston I bought mine 650 + 100 import tax from America Came within 3 weeks
Or message CP send them what you want and they will make you a set



Last edited by lenzoferrari; 19/05/2020 17:08. Reason: Spelt wrong
Re: Forged pistons [Re: lenzoferrari] #1641218
20/05/2020 10:44
20/05/2020 10:44
Joined: Feb 2006
Posts: 5,375
Essex
Trappy Offline OP
Club Member 1834
Trappy  Offline OP
Club Member 1834
Forum is my life

Joined: Feb 2006
Posts: 5,375
Essex
Lenzoferrari, what is the CR on those JE pistons?


F****** b****** thing...
Re: Forged pistons [Re: Nigel] #1641221
20/05/2020 13:16
20/05/2020 13:16
Joined: Feb 2006
Posts: 5,375
Essex
Trappy Offline OP
Club Member 1834
Trappy  Offline OP
Club Member 1834
Forum is my life

Joined: Feb 2006
Posts: 5,375
Essex
Originally Posted by Nigel
Sorry to hear it's not running right - I also made the mistake of going for forged pistons and standard rods - in the end I bent a rod, so had to go for forged rods anyway....

I also killed a set of forged pistons - they were well over 100,000 miles old and I ran 2 bar on race fuel and melted the rings into the ring lands

At that point, I rebuilt with Accralite pistons, with a slightly raised CR for better off-boost response

Why not just buy my car instead? You know it makes sense..... ;-)



Mine has only covered 45k and only at 1.5bar so I'm hopeful it's just news rings... I've rarely been lucky with this car though so preparing for the worst.

Haha, I've gone through far too muich with this car to give up on it now - sense went out of the window years ago laugh Besides, my little project is now past the point of no return - all sound deadening has been removed save for that behind the dash and that is coming out this evening evil


F****** b****** thing...
Re: Forged pistons [Re: Trappy] #1641226
20/05/2020 16:39
20/05/2020 16:39
Joined: Dec 2005
Posts: 17,350
Staffordshire
Nigel Offline
Forum veteran
Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,350
Staffordshire
Something must be wrong if it's done rings after only 45k miles - my 'gapless' CP rings lasted way over 100,000 miles and would have gone on for much longer if I hadn't got a bit over-ambitious with the boost....


[Linked Image]
Re: Forged pistons [Re: Trappy] #1641343
25/05/2020 21:50
25/05/2020 21:50
Joined: Feb 2009
Posts: 225
london
L
lenzoferrari Offline
Making a profit
lenzoferrari  Offline
Making a profit
L

Joined: Feb 2009
Posts: 225
london
Originally Posted by Trappy
Lenzoferrari, what is the CR on those JE pistons?


I’m running 8.0.1 cr and then decked the cylinder head to rise the cr

Re: Forged pistons [Re: Trappy] #1661871
12/11/2022 20:20
12/11/2022 20:20
Joined: Aug 2017
Posts: 3
Belarus
M
MAX2 Offline
Newbie
MAX2  Offline
Newbie
M

Joined: Aug 2017
Posts: 3
Belarus
Originally Posted by Nigel
Sorry to hear it's not running right - I also made the mistake of going for forged pistons and standard rods - in the end I bent a rod, so had to go for forged rods anyway....

I also killed a set of forged pistons - they were well over 100,000 miles old and I ran 2 bar on race fuel and melted the rings into the ring lands

At that point, I rebuilt with Accralite pistons, with a slightly raised CR for better off-boost response

Why not just buy my car instead? You know it makes sense..... ;-)


Hi! You bent the factory connecting rod! What is the torque and horsepower? Which turbine is installed and what is the boost?

Re: Forged pistons [Re: MAX2] #1662080
23/11/2022 18:38
23/11/2022 18:38
Joined: Dec 2005
Posts: 17,350
Staffordshire
Nigel Offline
Forum veteran
Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,350
Staffordshire
Originally Posted by MAX2
Originally Posted by Nigel
Sorry to hear it's not running right - I also made the mistake of going for forged pistons and standard rods - in the end I bent a rod, so had to go for forged rods anyway....

I also killed a set of forged pistons - they were well over 100,000 miles old and I ran 2 bar on race fuel and melted the rings into the ring lands

At that point, I rebuilt with Accralite pistons, with a slightly raised CR for better off-boost response

Why not just buy my car instead? You know it makes sense..... ;-)


Hi! You bent the factory connecting rod! What is the torque and horsepower? Which turbine is installed and what is the boost?


The standard rods are very good, but their capability is limited. Torque is what kills them. Anything above about 350 lb-ft is asking for trouble, depending on how it is delivered. I bent mine on a remapping session on a dyno - the mapper got the car to about 375 lb-ft. I asked him to reduce the torque, but the damage was already done. I was running a GT2871RS at about 1.6 bar

Last edited by Nigel; 23/11/2022 18:39.

[Linked Image]
Re: Forged pistons [Re: Trappy] #1662102
25/11/2022 08:03
25/11/2022 08:03
Joined: Aug 2017
Posts: 3
Belarus
M
MAX2 Offline
Newbie
MAX2  Offline
Newbie
M

Joined: Aug 2017
Posts: 3
Belarus
Originally Posted by Nigel
Originally Posted by MAX2
Originally Posted by Nigel
Sorry to hear it's not running right - I also made the mistake of going for forged pistons and standard rods - in the end I bent a rod, so had to go for forged rods anyway....

I also killed a set of forged pistons - they were well over 100,000 miles old and I ran 2 bar on race fuel and melted the rings into the ring lands

At that point, I rebuilt with Accralite pistons, with a slightly raised CR for better off-boost response

Why not just buy my car instead? You know it makes sense..... ;-)


Hi! You bent the factory connecting rod! What is the torque and horsepower? Which turbine is installed and what is the boost?


The standard rods are very good, but their capability is limited. Torque is what kills them. Anything above about 350 lb-ft is asking for trouble, depending on how it is delivered. I bent mine on a remapping session on a dyno - the mapper got the car to about 375 lb-ft. I asked him to reduce the torque, but the damage was already done. I was running a GT2871RS at about 1.6 bar

In my Fiat Coupe 20vt 466 hp 560 nm, gtx3071r boost 1.6 bar! The engine is standard! I think he's still alive because the boost is 1.6 bar at 4,500 thousand rpm.


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