GTM 1.5 upgrade

pokeyl

I just placed my order, anyone here with DIY info?

I did my 1.0 install without any problems.

Just looking ahead.

Thanks

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It's not my fault I'm old, I was born a very long time ago!

Baer383

If you did the install on your GTM stage 1 then you will be able to tackle this with no problem.

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2013 ZL1

754 rwhp 747 rwtq

pokeyl

I did the install but were some holes.

One, was it never tells you to install the upper intake.

Also, did not see a torque spec on the SC pulley.

Last, I think I spent more time installing and getting the clamps on the charge tubes than anything else.

I use to proof install kits on aircraft for the US Air Force. It's just the way I am.

Thanks

__________________
It's not my fault I'm old, I was born a very long time ago!

pokeyl

What pulley are you running? I have the 1.5 default (92mm) and the Smallest one Sam sells 84mm

__________________
It's not my fault I'm old, I was born a very long time ago!

Baer383

I have the 88 mm pulley which is 11 lbs the 84 mm is 12 lb

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2013 ZL1

754 rwhp 747 rwtq

pokeyl

I just finished the read on your build. You did your tune? Awesome!!! any trick you could pass on to me would be very helpful. I will be starting with Sam's 1.5 10PSI. I have played with uprev on the stock motor for over a year before SC.

I have no dyno nearby but today I checked the boost PSI at RPM in 4th from 2500 to 7000. 3 PSI at 2500, 5 PSI at 4000, 8 PSI at 6500. Stage is so limited by the intake.

I also have external WB O2 for real reading and full datalogging along with the data from the engine ECU

Did you build the Knock sensor listed at uprev??

__________________
It's not my fault I'm old, I was born a very long time ago!

Baer383

No I didn't build a knock sensor tool b/c my car was on the dyno for timing change , tuning it yourself is not to different from n/a, my suggestion is call Sam and see if he will send you a tune for your new upgrade then you can play with the air fuel maps to lean it out (b/c it will be rich) and once you dial in the correction factors close as possible to 100 then you will be done.
That is probably the easiest way.

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2013 ZL1

754 rwhp 747 rwtq

Mike@GTM

The Rotrex compressor housings are aluminum and there aren't any helicoils for the 6 bolt holes. That's why the torque spec is only 11 ft-lbs. It sounds like the bolt pulled the threads out of the aluminum (resembling a helicoil). Helicoils are generally made from steel and have locking tabs on them. So far, there hasn't been a need to helicoil anything on our kits.

Have you checked to make sure that the torque wrench you are using is calibrated correctly for low torque? Some torque wrenches may be within spec at mid to high torque levels, but not low torque.

pokeyl

All other were good, could hasve been oversized drilled before tap... Many things could have been the problem. It's fixed now.

__________________
It's not my fault I'm old, I was born a very long time ago!

pokeyl

My oil cooler solution, this is the long filter. I will be going back to the standard hight one! It will not stick out below the frame.

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It's not my fault I'm old, I was born a very long time ago!

pokeyl

This oil cooler is working great, no problems with air flow, less than $200 total, no cutting inder fender liner.

__________________
It's not my fault I'm old, I was born a very long time ago!