How To Tell Rb20Det Pistons Apart

[Driftnuttz]

I need to make sure these are factory turbo pistons in my rb20. The markings are "2 (on the timing side) 59s (other side) 06 ( right under 59s). Can anyone help me out?

[The Dan]

Photo?

[Driftnuttz]

[The Dan]

yeah stockers

[Driftnuttz]

Ok cool thanx. I didnt think they were aftermarket, I just didnt know if they were na pistons or not.

[The Dan]

Ok cool thanx. I didnt think they were aftermarket, I just didnt know if they were na pistons or not.

They could be NA if that crown is raised. But that won't matter. What are you using it for?

[Driftnuttz]

Building up a rb20det.

I have done some head work and shaved about .040 off to raise the comp ratio....... I hope they are not na, cause that might cause problems....

[kitto]

Yep, TURBO stock pistons.

[DVS JEZ]

Wowsers. 1mm. What turbo are u running

[The Dan]

Building up a rb20det.

I have done some head work and shaved about .040 off to raise the comp ratio....... I hope they are not na, cause that might cause problems....

0.040?

I hope you have a good tuner and great fuel

[zebra]

and low valve lift

[Driftnuttz]

Running stock cams, hx35, and tunning should be fun. I have 93 octain here in the states and can get my hands on race gas. If you see the way the head is made, you will see that shaving that much wont rais the comp up that much. I am looking for 9.0-9.5 to 1. I wont beable to run the same timing, but I wont need to. I should also see boost sooner now, and off boost power will be better.....

[DVS JEZ]

Do they sell methanol at the pump

Curious to see ur results. I have a rb25/30 here than has 1mm off the head but we will be running that N/A

[Driftnuttz]

Do they sell methanol at the pump

Curious to see ur results. I have a rb25/30 here than has 1mm off the head but we will be running that N/A

The rb25 head will see a higher lift in compression when shaved. I am still cleaning the combustion chambers to avoid det from hot spots. Should be putting the head together in the next week or so. Then its on the block and in the car. I will be posting my results here.

Anyone know of any good tuning software that is free or cheap? I have a buddy that is going to lend me his tuning know how, but only uses an power fc right now. I am going to use a chip. I have romedit, just kinda looking to see if there is any more out there.

[The Dan]

The rb25 head will see a higher lift in compression when shaved. I am still cleaning the combustion chambers to avoid det from hot spots. Should be putting the head together in the next week or so. Then its on the block and in the car. I will be posting my results here.

Anyone know of any good tuning software that is free or cheap? I have a buddy that is going to lend me his tuning know how, but only uses an power fc right now. I am going to use a chip. I have romedit, just kinda looking to see if there is any more out there.

The EPROM isn't programmable from factory so you will need to install a Nistune or similar

[Driftnuttz]

The EPROM isn't programmable from factory so you will need to install a Nistune or similar

I will be socketing the ecu and burning chips. I plan on using an emulator to tune and then burning a chip to use when not tuning..

[Adriano]

No offense intended but why, we were burning chips 10 years ago, nistune is so cheap, the emulator will cost more, and the old school tuning stuff is slow and clunky

[Driftnuttz]

No offense intended but why, we were burning chips 10 years ago, nistune is so cheap, the emulator will cost more, and the old school tuning stuff is slow and clunky

When did nistune only cost 150? Look a chip is just as good as a off the shelf ems system, minus a few things. People make crap loads of power on chipped ecus all the time.Even nistune is just lick a chip, it replaces the chip with a small board. Is it the best way to tune? no But it is cheap..

[N1 RB26]

if you've got your own tuner you can pick up nistunes for like 450 check it out here this is for RB20 http://www.nistune.com/equipment-products-type2.php plus you get live tuning and data logging go have a read on the home website...if you ask me the extra 300 bucks is well worth it less of a pain in the ass plug it in and away you go

[Driftnuttz]

You still have to do the same stuff. Remove the chip in the computer, and add the board. Maybe you get a bigger map (16x16 is what I will be working with), thats not worth it to me. I will be data logging with consult and a laptop.