Jazer

So the LSJ was going to be returned to stock. We knew we had 1 bad piston so only one replacement was bought. After inspecting them closely, apparently we needed 2 new pistons (one wasn't that bad, just bad enough to make it a stupid idea to put it into a freshly re-sleeved engine).

Due to being pressed for time, the decision was made to use the pistons that we have that were for a build my BF decided not to go through with (he bought an STI instead of building the SS).

In went our Ceramic Coated Diamond Pistons @ 10.5 compression.

We are keeping the stock supercharger pulley as well (as originally planned).

I have a Cobra heat exchanger that is for sure going on, and we might put an oil cooler on as well since we do have one.

mkulrey13

iTrader: (39)

Hope it works out for ya jess, comming to the smg meet right!?

ralliartist

the lsj has an oil cooler stock, fyi

Rodimus_Prime

iTrader: (3)

I hope you have access to HP tuners your going to have to reduce the timing by quite a bit to accept that compression in a supercharged motor to prevent knock, water methanol injection alone wont do it

Stock bore?

Jazer

Lol yes... I have a turbocharged Cavalier (well, JUST de-turboed it), not new to HPtuning. We've had HPT since the day we bought the SS, just over 3 years ago.

Im not worried about the tuning aspect.

There is a lot of info on IRL forums in regards to raising comp. Most that are running 10.1-10.5 actually have small pulleys too. I am going to be running the stock one and I do not plan on changing it.

Yes, they are the stock bore.


Yes I know, but if needed, I have another one.


Any suggestions on spark plugs? Stock or should I go a step colder? That is one thing I wasn't sure about.

Bika

iTrader: (3)

go colder. NGK BKR7E.
Whenever you are introducing more heat to the combustion chamber, its a good idea to drop a heat range

Rodimus_Prime

iTrader: (3)

^^absolutely