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HD Piston 10.5.1 for 1000 Whp experience?

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Glatto

Proven Member
105
6
Oct 19, 2013
Marolterode, Europe
Hi

My car have 909 PS but the pistonpin was to smal and destroy the engine :-(

Now i was use alu rod from FFWD and HD Wiseco Piston 10.5.1 have anyone experience with this combo?(spooling tourque, max hp etc)

Fuel is E85 boost at moment 40 psi.[DOUBLEPOST=1410844384][/DOUBLEPOST]Have nobody experience with HD piston? :cry:
 
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IMO the Wiseco HD doesn't have enough skirt area to support the piston under that kind of power or cylinder pressure. We use them in builds up to about 750-800HP max. Above that we've seen accelerated wear and excess blowby (from lack of ring support). For higher HP builds we use pistons with a full-round skirt design which supports the rings much better and distributes the load evenly across a larger area of the skirts which helps with longevity.
 
IMO the Wiseco HD doesn't have enough skirt area to support the piston under that kind of power or cylinder pressure. We use them in builds up to about 750-800HP max. Above that we've seen accelerated wear and excess blowby (from lack of ring support). For higher HP builds we use pistons with a full-round skirt design which supports the rings much better and distributes the load evenly across a larger area of the skirts which helps with longevity.

What piston brands do you recommend?
 
JAM is one of the best engine builders for our platform. They have been around for a long time and i trust their advice.

When he say full rounded skirt, there are a number of manufactures that come to mind. JE, ROSS, and Manley just to name a few offers that type of pistons. JE for example -specifically FSR forge line- has full rounded skirts.

I am sure JAM has done alot of Venolias and i am sure its a good brand.
 
Thanks for the answer. The question is: Is this high compression good for the engine or it is better lower compression and little higher boost for the 1000 whp.
At the moment have the car 42 psi boost and 909 PS.
What is the benefits from the 10.5 piston compared to the 8.5.1 piston.

Sorry for my bad enlish i`m from germany.
 
Thanks for the answer. The question is: Is this high compression good for the engine or it is better lower compression and little higher boost for the 1000 whp.
At the moment have the car 42 psi boost and 909 PS.
What is the benefits from the 10.5 piston compared to the 8.5.1 piston.

Sorry for my bad enlish i`m from germany.

You can go high as 11 to something, its all in the type of fuel you use. with that being said i assume you will be on e85?

Boostin Performance for example run 11:5:1 on 2.0L and it been doing fine for them.

http://www.dsmtuners.com/threads/7-second-build-red-demon-boostin-performance-built-tuned.475849/
 
Just speaking from personal experience, if you go with Ross, look into aftermarket pins. I had the stock 21mm pins that came with them, and finally snapped on on cylinder #4 after a couple years.
 
We use Venolia pistons in most applications over 750WHP. The name isn't as recognizable as others because everything is 100% custom built and they focus on engine builders as opposed to selling direct to consumer. They are the strongest and most accurately machined pistons available.

The JE FSR is not a full round design. The name itself implies the design where "FSR" stands for Forged Side Relief, which means the sides of the skirt are milled away. Also known as a "slipper skirt". The design was derived years ago (particularly in N/A applications) where the benefits of a lightweight piston/pin combo are more beneficial. IMO this design has no business in a turbocharged engine. I've seen waaaaay too many pistons with this design with collapsed skirts (particularly Ross, CP and Arias).
 
That's a loaded question. It depends on a lot of variables including fuel system, turbo, IC piping, cylinder head flow and tuning ability. There's no concrete answer to that question.
 
That's fair. I currently run 48psi to 52 psi on the Venoila pistons with the 21mm wrist pins. I also use Crower steel I beam rods, and a stock crank. My head is a ported 1g model but i'm putting a JAM head on my new setup. I still have a stock tb on a Hogan intake manifold. I run 2.5 inch piping and my fuel system is 2 044 and id2000 Injecters.
 
That's fair. I currently run 48psi to 52 psi on the Venoila pistons with the 21mm wrist pins. I also use Crower steel I beam rods, and a stock crank. My head is a ported 1g model but i'm putting a JAM head on my new setup. I still have a stock tb on a Hogan intake manifold. I run 2.5 inch piping and my fuel system is 2 044 and id2000 Injecters.

Geeze...looks like I am on low boost. ha ha. I may need to look into venolias if I ever decide to invest some real money into a motor.

Do Venolia come with thick walled/HD pins?
 
wiseco will build custom pistons. and you can start with one of their predesigned pistons and just tell them modifications. i have a set of custom pistons from wiseco going in a 6bolt block. they are huge overboar, 10:1, stroker, with custom thick wall tool steel tapered pin. the walls on the block are pretty thin but im only looking for 30psi so it should be fine. they will do full round pistons also but you won't be able to start with one of their prefab blanks.
 
You do know that all the guys making over 1000whp that run mid to low 8s are not on a full round piston? And the HD2 forging is even shorter? These guys are running 50+ passes on them like that and don't have any problems.

OP you will be fine with compression that high running E85. Corn fuel likes a bit more compression anyways.
 
Not sure how they do it, but the rings on the Venoila pistons are further down the bore then the Cp, Aries, and JE pistons I've used. I'm assuming that helps strengthen the ring land area, in the event in detonation. All of the named piston have been in shop car making over 1k awhp. Venoila, however are used for top fuel cars. It has alot of technology that works in a boosted environment to make it last. My current motor was built in 2001-2002............. it's been 30-52 psi throughout it lifetime and has trapped in 3000+ pound cars between 127-161 mph through out its life. With over 15k of street and track life. A stupid timing belt issue, has retired it. However, I'll be sending one piston in, to get another one created and will refresh the block.[DOUBLEPOST=1417007300][/DOUBLEPOST]I'm pretty sure you can have whatever wrist pin you want created, as everything is made to order. Mine were dinky looking but they held. When I asked about them, I was told improper tuning is useally why wrist pins break. So I was told.................[DOUBLEPOST=1417007555][/DOUBLEPOST]In my opinion light weight piston in a turbo motor is stupid. What I like is strenght, after really talking with guys that are fast, that run the numbers. You really have to run alot of boost to go fast. Is some cases as mush as 70 psi to run bottom 8s. I'll just say, that reliability is what makes a fast car, extremely fast.
 
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