are speedpro hyper pistons any good?

[challengermike]

Are the speedpro hypereutectic pistons any good for a turbo build?The machine shop i goto suggested diamond forged pistons.I do plan on running a t49 or slightly bigger turbo.

 

[KILL4PEACEUSMC]

You need Forged pistons period. Un less your builing a "claimer"

 

[mikestertwo]

Depends on what your goals are.

 

[JayC]

Stay far away from hyperutectic pistons. They dont play well with detonation.

 

[challengermike]

Thanks,it looks like they will be forged then.

 

[sixgun86gn]

There are a few guys I know using them. So far one is putting 30# on them and they are holding up.

Just know how to tune your car and it won't be an issue.

I've used them without problems before.Haven't had one break yet,so far.

 

[t3intercooled]

You don't need diamond forged, I went with speed pro forged pistons and they work awesome. hth

 

[gossamer]

I ran a set of them in my last engine. Never had any problems with them and the engine did see some detonation. The hypereutectic pistons are still a cast piston, so be careful if detonation is common with your set-up.

 

[TurboMonte 2]

If you want Hypers, I have a good used set of Keith Black, +0.030--also 210/205 Reed-club cam, if you want flat-tappet...

 

[Nasty Wendy]

Stay far away from hyperutectic pistons. They dont play well with detonation.

And forged pistons do?

Regaurdless of what you use (hyper/forged) you will want to tune for ZERO detonation. Detonation will kill any piston.

 

[PaCemkr86]

im using those exact pistons, and have no problems.. Just make sure your tune is on...

 

[BlackBandit]

I've got hypers in my engine and I'm not worried about it. Keep in mind the factory piston (you know, the one that's gone 10's) was cast. IMO unless you're trying to go fast (I personally would say 10's) it just gives you less room for error in your tune. Just my .02

 

[Jerryl]

I've got hypers in my engine and I'm not worried about it. Keep in mind the factory piston (you know, the one that's gone 10's) was cast. IMO unless you're trying to go fast (I personally would say 10's) it just gives you less room for error in your tune. Just my .02

+1
I am running hypers and have no problems.
I wonder if the "Hyper material" has changed over the years and are now better than 5-10 years ago.

We all know that;
The more power, the less forgiving KR is.
At 600HP/Forged, you may get away with 5 deg KR (just calling out some numbers), while at 600hp/hypers, you may only get away with 2 deg KR.

Had my share of KR during the early tuning process, but, I will never see the power level some are at.

It always comes down to;
"How fast can you afford to go?"

 

[BadAssGN]

Fast


Cheap


Good


Pick 2 :biggrin:

 

[Jerryl]

Fast


Cheap


Good


Pick 2 :biggrin:

Ok, Here are my picks;
Cheap & Good

 

[87GNSteve]

Got Speed pro hypers in my 4.1.
If i havent blown them up by now, then I never will.
Alot of guys running fast w/ the stock cast piston.

Its really personal preference. but they will hold up to what ever you can dish out.
My two points for a TR engine rebuild:
proper clearances
and
Balancing.

and as other said for the tuning/driving:
"No detonation."

 

[PaCemkr86]

mine have help to several 10 sec passes

 

[BadAssGN]

Ok, Here are my picks;
Cheap & Good

Cool... it wont be fast :biggrin:

 

[PaCemkr86]

anybody else using hypers??

 

[No Tie]

I put speed-pro hypers in my .30 over 4.1 3-4 k. miles ago .Over revved ,poor
tunes,hi boost.Still waiting for it to blow up.