[Boost or bust]

Can all of you 17/18 ZL1 owners that’s had a professional dyno tune please share the RWHP increase you picked up? Tune only or tune plus intake, but NO other mods? Please indicate what octane fuel used.

[Boost or bust]

Seriously? NOBODY has tuned a stock 17/18 ZL1?

[crosive]

from what I've read, you don't stand to pick up much from just a tune, as the factory tune is pretty good.

[JANNETTYRACING]

Originally Posted by Boost or bust

Can all of you 17/18 ZL1 owners that’s had a professional dyno tune please share the RWHP increase you picked up? Tune only or tune plus intake, but NO other mods? Please indicate what octane fuel used.

A Tooner could force it to make more power on the dyno to collect your money but it is unlikely the engine will live very long.

GM didn't purposely leave any power on the table like the old days in the 90s

Custom tuning should be left for aftermarket part optimization.

Power increases will come from LT headers, exhaust, and smaller pulley or larger blower, Camshaft etc.

Ted.

[Boost or bust]

Originally Posted by JANNETTYRACING

A Tooner could force it to make more power on the dyno to collect your money but it is unlikely the engine will live very long.

GM didn't purposely leave any power on the table like the old days in the 90s

Custom tuning should be left for aftermarket part optimization.

Power increases will come from LT headers, exhaust, and smaller pulley or larger blower, Camshaft etc.

Ted.

Ted: so, are you saying for me not to waste my money tuning a stock car ( except it does have rotofab) and wait until i add hardware?

[JANNETTYRACING]

Originally Posted by Boost or bust

Ted: so, are you saying for me not to waste my money tuning a stock car ( except it does have rotofab) and wait until i add hardware?

You asked specifically about RWHP gains from tuning alone on a stock car.

So I answered that question.

Now I can change the way the car feels from the driver seat, through torque management reduction, cooling fans on earlier, skip shift off in the case of a manual, transmission tuning in the auto we can certainly give you a more spirited driving experience but no real RWHP gains.

Add in the Rotofab and that changes the game, Rotofab spends a lot of time dialing in they cold air kits so they don't affect the calibration to much.

But with careful data logging and tuning we can dial that in for best performance on top of the other changes I mentioned.

Hope this helps.

Ted.

[Boost or bust]

Originally Posted by JANNETTYRACING

You asked specifically about RWHP gains from tuning alone on a stock car.

So I answered that question.

Now I can change the way the car feels from the driver seat, through torque management reduction, cooling fans on earlier, skip shift off in the case of a manual, transmission tuning in the auto we can certainly give you a more spirited driving experience but no real RWHP gains.

Add in the Rotofab and that changes the game, Rotofab spends a lot of time dialing in they cold air kits so they don't affect the calibration to much.

But with careful data logging and tuning we can dial that in for best performance on top of the other changes I mentioned.

Hope this helps.

Ted.

Yes, thank you. I’m stuck with 91 octane and emissions laws, so no “obvious” visual mods for now. I’m to,d that just bolting on one of the blower upgrades from Whipple, Magnuson, Edelbrock will add little without other breathing changes such as headers. If my goal were to add 100 RWHP, is this possible without exhaust mods?

[JANNETTYRACING]

Originally Posted by Boost or bust

Yes, thank you. I’m stuck with 91 octane and emissions laws, so no “obvious” visual mods for now. I’m to,d that just bolting on one of the blower upgrades from Whipple, Magnuson, Edelbrock will add little without other breathing changes such as headers. If my goal were to add 100 RWHP, is this possible without exhaust mods?

75 RWHP is possible on 91 octane with our street package.
Rotofab
ATI superdamper
15% crank pulley and belt.
ARP crank bolt
HPtuners VCM suite.
custom JRE tuning.

Call me for an estimate when ready 203-753-7223

[GuywithL86]

Originally Posted by Boost or bust

Can all of you 17/18 ZL1 owners that’s had a professional dyno tune please share the RWHP increase you picked up? Tune only or tune plus intake, but NO other mods? Please indicate what octane fuel used.

With a supercharger, you can’t control the boost with the ecu, so power gains will be minimal. A tune only on a turbo car increases the boost, so they make a lot more power. There are really no supercharged or NA vehicles that make any considerably more power with just a tune. Most gains come from just adjusting the timing and afr to be less conservative to account for the higher octane fue you’re only going to use.

What you need is a new pulley to spin the supercharger faster, that combined with a tune would have the same effect as a tune only turbo car.

[bomariam1]

Originally Posted by GuywithL86

With a supercharger, you can’t control the boost with the ecu, so power gains will be minimal. A tune only on a turbo car increases the boost, so they make a lot more power. There are really no supercharged or NA vehicles that make any considerably more power with just a tune. Most gains come from just adjusting the timing and afr to be less conservative to account for the higher octane fue you’re only going to use.

What you need is a new pulley to spin the supercharger faster, that combined with a tune would have the same effect as a tune only turbo car.

The LT4 is not a normal SC, it has a boost control valve that is controlled by the ECU.

[JANNETTYRACING]

Originally Posted by bomariam1

The LT4 is not a normal SC, it has a boost control valve that is controlled by the ECU.

The computer can only dump the boost for a failure or torque management.

Max boost is still determined by the size of the supercharger and pulley ratio.

Ted.

[Markoz28]

Ted, once I can put in more seat time and really know my car plus convince my wife that a warranty is just a way to keep us down I will be giving you a call.

[JANNETTYRACING]

Originally Posted by Markoz28

Ted, once I can put in more seat time and really know my car plus convince my wife that a warranty is just a way to keep us down I will be giving you a call.

I look forward to working with you.

Tell here it gets better gas mileage that always works LOL.

Ted.

[GunMetalGrey]

Originally Posted by JANNETTYRACING

75 RWHP is possible on 91 octane with our street package.
Rotofab
ATI superdamper
15% crank pulley and belt.
ARP crank bolt
HPtuners VCM suite.
custom JRE tuning.

Would this melt the stock cats? A few other posts I’ve read seem to think it will...
How much more power could be gained from 94 Octane as well as LT Headers and high flow cats?