I am in the process of putting together a 2.0 for a new project.

We are using am oem block and crank, RnR aluminum rods, all that is left is to pick the perfect piston.

The horsepower goal for the car is between 600-625 on a gt42 on lowish boost.
The only catch is that the car will be sustaining high rpms for long periods of time. (think 91 mile long dyno pull)

Ideas? Suggestions?

 

You will need to find a piston that has enough material in the crown to handle a long duration of high heat/load, but won't be too heavy and stress the rod bolts due to high RPM.

Buschur and TTP offer JE Pistons that are designed/proven to be durable. You may want to explore the thermal barrier coating on the crown of the piston to help with the heat.

You will also have to increase your piston to wall clearance in this type of application. Most street applications are only at WOT for very short durations so never see the time at high temperatures as you're describing.

What fuel are you going to use? Methanol or E85 would help keep the pistons cooler...

 

the car will be on e98, but may have to be blended down slightly if the fuel cell proves to not be big enough.

 

That will really help lower the temperatures.

Also, make sure you upgrade to a thicker wrist pin...I would recommend a .170-.180" wall pin made of 9310.

 

We have a set of Magnus Ross pistons but they have the smaller wrist pins, witch makes me a little nervous on this motor.

 

I'm using Cp pistons with a .020 bore 9:1 compression.. Runs mid 10's on E-85 with crower rods on a superflow dyno it made 610AWHP @32psi. These pistons have worked really well for me i have used them in a .020 bore and .040 bore!! We have also used these piston is a couple of 2.3 strokers we have built and they have also worked well and made anywhere from 600+ to 800+..

Mark

 

91 mile dyno? Sounds like something out of Nevada, eh?

 

For me CP with upgraded rings and pins, But I would use JE no problems.

Mark

 

I'm using coated CP's in my motor, no issues at all, however at my power level the motor isn't even awake yet... Arias has some off the shelf and custom pistons that would suit your needs too.

 

That's what I was thinking...

Also, you should choose a higher compression ratio since you're not running gas. 9.0:1 may be a bit low...unless you turn up the boost!

 

That is what we are doing with the car

We were looking into doing like a 9.5:1 piston

 

I have a set of new BR JE pistons and Total Seal Rings.

I decided to go with a built short block from AMS instead (long story...sorry Dave! Nothing personal)

If you want a deal...PM me. (I also have some nice Carrillo rods.)

 

althemean, no offense taken. I just go look at the top 20 list and all is well.

 

We use only BR Spec JE pistons.. PROVEN to go Fast and to Last..

Mike

 

What are the weights of the pistons? The Mahle can be had at 302-308 grams where most of the rest of these are 350-400 grams. Coatings are a given, though I will probably have this spec'd by some friends I recently made. I think the main idea is to drop reciprocating mass so that reliability at 8000 will be improved.

Thoughts on the tech?