[2016 1ss]

What kind of IAT’s are you seeing when driving on the street and track?

[Jhunsberger]

Originally Posted by 2016 1ss

What kind of IAT’s are you seeing when driving on the street and track?

During the summer in PA average in the 130's, but normally anywhere from 120-150 (in traffic on a hot day).

Got the PCM of NC Manual Fan Switch to help cool it down when in traffic and at the track.

[18ss376]

Just curious why you put the LT4 injectors & pump on it, was stock not enough?
Put some DR's & LTH on it, I bet it will run a faster than a 10.87

[EDFHOBBIES]

Originally Posted by Jhunsberger

So my 17 SS M6 currently sits with the following mods:

620rwhp/595tq (07/2018)
Whipple SC, 3.50 pulley
LT4 HPFP & Injectors
Roto-Fab dry CAI
NEP Cat delete pipes (all 4)
Borla ATAK full exhaust NPP with mid-pipe resonator (was not retuned after install)
Catch can
P3 Gauge

The mods below I will be installing over the winter, all purchased, not yet all delivered.

18" drag pack (purchased late fall, was not able to get to the track with it)
NW 103 TB
LT4 Low side pump
Kooks 2" LT no cats, jet hot coated
Granatelli plug wires with heat sheilds
Fresh set of NGK-6509 plugs
DSS HD axles
Gforce drive shaft
PCM of NC Manual Fan Switch

I might try and have it tuned with stock TB and then install the NW TB to see the difference in just the NW TB. We shall see how it all shakes out. Also trying to piece together a larger intake tube to replace the whipple supplied rubber tube, any suggestions there? I reached out to Roto-Fab to see if they have a solution.

Cant wait to hit the track in the spring and hopefully not smoke the clutch!

I had a debate or question with Ted Jannetty about lowering the compression to 9:1 (using LT4 heads that are 64cc vs 59c LT1 and maybe the Cometic head gasket that's a little thicker than the LT4s) Granted the cam profiles are different but, in a LT4 car if one bolts the whipple on you make 700-720hp, yes it takes more boost but it seems on a LT4 motor you make more power before you need to add meth/octane. Seeing your numbers and others SS's numbers (with an Aux pump, LT4 High side, and Lt4 injectors same setup as an LT4 now) I'll probably donate my heads to my wife since I'm going to buy some ported ones so I have no down time on my build. The eforce she has and the my new 2650 are machined to run on LT4 or LT1 heads see pic of my 2650.. I wonder if the whipple is to.. I guess the LT1 snout would not have the PCV on the bottom since they rune different valley covers.

Just wondering if you were thinking of lowering the compression when you finish up your build or if this idea crossed your mind?

[Jhunsberger]

Originally Posted by 18ss376

Just curious why you put the LT4 injectors & pump on it, was stock not enough?
Put some DR's & LTH on it, I bet it will run a faster than a 10.87

The stock LT1 HPFP and injectors may not have been enough. I didn't want them to limit me when it got tuned. And since its all apart and the HPFP and injectors are right there I just did them. If I wanted to do them after the fact I would have to pull the Whipple to get to them. Just made sense to me to do it while it was apart, dont like doing things 2x. Kind of why I am doing the LT4 low side, axles, drive shaft and headers all at the same time. exhaust has to come down to do the DS, that stuff has to come out for the low side pump.

[Jhunsberger]

Originally Posted by EDFHOBBIES

I had a debate or question with Ted Jannetty about lowering the compression to 9:1 (using LT4 heads that are 64cc vs 59c LT1 and maybe the Cometic head gasket that's a little thicker than the LT4s) Granted the cam profiles are different but, in a LT4 car if one bolts the whipple on you make 700-720hp, yes it takes more boost but it seems on a LT4 motor you make more power before you need to add meth/octane. Seeing your numbers and others SS's numbers (with an Aux pump, LT4 High side, and Lt4 injectors same setup as an LT4 now) I'll probably donate my heads to my wife since I'm going to buy some ported ones so I have no down time on my build. The eforce she has and the my new 2650 are machined to run on LT4 or LT1 heads see pic of my 2650.. I wonder if the whipple is to.. I guess the LT1 snout would not have the PCV on the bottom since they rune different valley covers.

Just wondering if you were thinking of lowering the compression when you finish up your build or if this idea crossed your mind?

I have not given any thought about lowering compression. Dont think i will but if i decide to do cam pistons and head work maybe. Let us know what you find out as you explore your builds.

[JANNETTYRACING]

Originally Posted by EDFHOBBIES

I had a debate or question with Ted Jannetty about lowering the compression to 9:1 (using LT4 heads that are 64cc vs 59c LT1 and maybe the Cometic head gasket that's a little thicker than the LT4s) Granted the cam profiles are different but, in a LT4 car if one bolts the whipple on you make 700-720hp, yes it takes more boost but it seems on a LT4 motor you make more power before you need to add meth/octane. Seeing your numbers and others SS's numbers (with an Aux pump, LT4 High side, and Lt4 injectors same setup as an LT4 now) I'll probably donate my heads to my wife since I'm going to buy some ported ones so I have no down time on my build. The eforce she has and the my new 2650 are machined to run on LT4 or LT1 heads see pic of my 2650.. I wonder if the whipple is to.. I guess the LT1 snout would not have the PCV on the bottom since they rune different valley covers.

Just wondering if you were thinking of lowering the compression when you finish up your build or if this idea crossed your mind?

Let me give you something to think about.

I high compression lower powered engine can be quicker in the 1/4 mile than a lower compression higher powered engine.

This should get your eggs scrambled LOL

Ted.

[18ss376]

Originally Posted by Jhunsberger

The stock LT1 HPFP and injectors may not have been enough. I didn't want them to limit me when it got tuned. And since its all apart and the HPFP and injectors are right there I just did them. If I wanted to do them after the fact I would have to pull the Whipple to get to them. Just made sense to me to do it while it was apart, dont like doing things 2x. Kind of why I am doing the LT4 low side, axles, drive shaft and headers all at the same time. exhaust has to come down to do the DS, that stuff has to come out for the low side pump.

Could have put this on & probably got same results as the LT4 pump & not have to pull the gas tank.

https://www.jmschip.com/electric-fuel-pump-p2000gmp2/

[JANNETTYRACING]

Originally Posted by 18ss376

Could have put this on & probably got same results as the LT4 pump & not have to pull the gas tank.

https://www.jmschip.com/electric-fuel-pump-p2000gmp2/

in most cases you will need the LT4 pump and a Specific JMS pedal activated voltage booster we sell on our site www.jannettyracing.com

Ted.

[Jhunsberger]

Originally Posted by 18ss376

Could have put this on & probably got same results as the LT4 pump & not have to pull the gas tank.

https://www.jmschip.com/electric-fuel-pump-p2000gmp2/

Its been widely discussed in any boost applications you will most likely need the LT4 low side and voltage booster (to regulate and maintain voltage).

[18ss376]

Originally Posted by Jhunsberger

Its been widely discussed in any boost applications you will most likely need the LT4 low side and voltage booster (to regulate and maintain voltage).

Okay, I'm just looking to make no more than 600hp max., so with that said can I use all stock parts? Whipple claims I can use 100% factory stock EFI, exhaust, cats, no CAI ect. I still want my car to be a DD as I will drive it to work everyday & drag race about once a month.

[Jhunsberger]

Originally Posted by 18ss376

Okay, I'm just looking to make no more than 600hp max., so with that said can I use all stock parts? Whipple claims I can use 100% factory stock EFI, exhaust, cats, no CAI ect. I still want my car to be a DD as I will drive it to work everyday & drag race about once a month.

Stick with the out of the box setup from whipple, it will be worth taking it to a reputable LT1/LT4 tuner to dial it in though, it will most likely run rich from whipple with their caned tune. But fuel will be your limiting factor. I believe this is what steelheadrob did from the start, then did the LT4 fueling & CAI, then headers......

[JANNETTYRACING]

Originally Posted by 18ss376

Okay, I'm just looking to make no more than 600hp max., so with that said can I use all stock parts? Whipple claims I can use 100% factory stock EFI, exhaust, cats, no CAI ect. I still want my car to be a DD as I will drive it to work everyday & drag race about once a month.

Stock fuel system parts will limit you to about 580 RWHP.

[18ss376]

Originally Posted by Jhunsberger

Stick with the out of the box setup from whipple, it will be worth taking it to a reputable LT1/LT4 tuner to dial it in though, it will most likely run rich from whipple with their caned tune. But fuel will be your limiting factor. I believe this is what steelheadrob did from the start, then did the LT4 fueling & CAI, then headers......

There is not a LT tuner within 200 miles of where I live, I've called all over my area & no one is willing to touch my car. I have to do everything myself, hope Whipple or HPtuners can email me any tuning I may need.

Originally Posted by JANNETTYRACING

Stock fuel system parts will limit you to about 580 RWHP.

I can live with 580 easy, I'm hoping not to spend any more money after this.
Just want a fun street/strip car & be a reliable DD.