Lowering cr

[s2dk]

Hello
Found this on the www

http://wp-spezialteile.de/shop/index.php?page=product&info=100

Anyone have some good or bad to say about it ?

I would lile to stay on stock pistons but not at all a must
What is the best way to do it?
If doing piston im thinking might *** well go 83mm?

[Simons]

If you use a thicker gasket than stock like you posted, and don't touch the height head, you may use a regulable cam pulley

All depends how much you want lower the CR for your power goal, boost, turbo...I saw on the advertisement 8,24:1, and this is low

You can buy low compression pistons with stock bore...83mm it's the head wasket limit

[Error404]

Just skim the crown of the stock Pistons. You dont need to remove much. I posted a compression ration calculator on the forum you can use to work it out

[s2dk]

Error
It was to leave the pistons stock and dont take them out
Buttom was done 8 k km
And i dont want to get new bolts and parts for that again ☺
I know the former owner did use arp 2000 bolt
Can they be reused for head ?
I was thining of going down to 8:1 tho i have read that our engine will be more than happy with that ?
If using a bigger bore like 83 how much wil that change the cc of the engine?

[willg54]

You don't want to change the pistons...but then talk about changing the bore?! Have I missed something?

[s2dk]

Haha sry for the cofusing
The bigger bore was just an idea ☺ not the plan. Im just getting ideas for what to do or not do. Doea that make sence?
If going 82 83 bore with stock stroke isen changig much for the displacement then im not going to use bigger bore.

[Thuppu]

What is your power target and turbo you are going to run?

[s2dk]

Doing a 82.5 piston with stock stroke wil make it a 2.3l
But dont know if it is worth it.?
Is there any down side to just using thicker hg?

[s2dk]

Gtx 3076 r .082 i dont know 500 600

[s2dk]

Between 500 600 is the goal but closes to 600

[jsol]

If you mean 500-600 hp at the wheels a 3076 will be a bit small I think. 3582 if staying with Garrett would be better.

[s2dk]

Its not whp
I dont whant to go 35 on it
Im going gtx cuz its a direct fit on my car without changing anything els

[s2dk]

35 will add to much lag for my taste and for the daily driven car that it is
Maybe if i end up getting t
It to a 2.6 one day ☺

[Error404]

Here is my CR calculator.
You would need to skim 1.1mm off the stock pistons to get around 8.5:1 without really affecting the crown material thickness of the pistons.
This will be fine for 500hp on pump fuel.

If you have access to E85 in Denmark then just modify your fuel system to suit the requirements and leave CR alone.

[s2dk]

We dont have e85 here
God knows why ��
Only 99 vpower