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Old 05-24-2022, 04:43 PM   #1
Camaroking98
 
Drives: 2019 ZL1
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How Much Horsepower Should These Mods Net Me?

Hey guys! I just got off the phone with a performance shop locally that I'm going to be working with.

I'm getting the following mods done and I'm wondering if you guys could give a ball park of what to expect gains wise.

Texas Speed 2' Long Tubes With X Pipe
Texas Speed Cam Kit
Roto Fab Big Gulp CAI
2.5' Pulley (to get stock levels of boost back here at altitude)
103MM Nick Williams Throttle Body
Tune

My goals for the car are really just a strong running street car which is why I'm just adding the smaller pulley to get stock boost numbers back. Not wanting to run 20+ pounds of boost lol.

Basically just a really solid FBO car.

Any guestimates on power from your guys experience?
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Old 05-24-2022, 04:49 PM   #2
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Is this on e85 or 91/93?
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Old 05-24-2022, 04:52 PM   #3
Camaroking98
 
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Originally Posted by JBones81 View Post
Is this on e85 or 91/93?
I knew I forgot something LOL. Pump 91 here in colorado.
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Old 05-24-2022, 05:31 PM   #4
Evansa22

 
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I thought 2.5 upper was stock size pulley? Also with the big gulp and 103 tb your bottleneck will be the supercharger inlet. Guessing maybe 660-680 to the wheels, possibly lower because of the altitude
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Old 05-24-2022, 05:34 PM   #5
SJFGTO
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650-660ish
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Old 05-24-2022, 05:57 PM   #6
Camaroking98
 
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Quote:
Originally Posted by Evansa22 View Post
I thought 2.5 upper was stock size pulley? Also with the big gulp and 103 tb your bottleneck will be the supercharger inlet. Guessing maybe 660-680 to the wheels, possibly lower because of the altitude
he put down griptech 2.5 or 2.3 and possibly machining the supercharger if necessary.

Shouldn't the smaller pulley with normal boost levels put me back at just the regular stock 650hp by itself? the cam and everything else I thought would net me 150ish...

I was thinking 700-750 wheel...can you help me understand better?
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Old 05-24-2022, 06:09 PM   #7
JSH


 
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Quote:
Originally Posted by Camaroking98 View Post
I'm getting the following mods done and I'm wondering if you guys could give a ball park of what to expect gains wise.

Texas Speed 2' Long Tubes With X Pipe
Texas Speed Cam Kit
Roto Fab Big Gulp CAI
2.5' Pulley (to get stock levels of boost back here at altitude)
103MM Nick Williams Throttle Body
Tune

Any guestimates on power from your guys experience?
To address your question, mine made 723 wheel in Houston in the summer with a custom valve train, heads, 10% lower, Kooks LT/cats, custom radiators, CAI, but virgin OEM TB and SC. Your build looks very comparable.
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650.
100+ octanes, no eth, no meth, no N2O.
2/23 - 1031/1004 wheel.
4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes).
2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.
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Old 05-24-2022, 06:16 PM   #8
Camaroking98
 
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Quote:
Originally Posted by JSH View Post
To address your question, mine made 723 wheel in Houston in the summer with a custom valve train, heads, 10% lower, Kooks LT/cats, custom radiators, CAI, but virgin OEM TB and SC. Your build looks very comparable.
Yeah that's kinda the range I was expecting power wise to the wheel 700-750...

I'm not missing any supporting mods am I? I told the guy at the shop that I wanted full bolt on plus cam and this is what he came back with.

I'm assuming I'll have a very reliable street build?
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Old 05-24-2022, 06:25 PM   #9
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Quote:
Originally Posted by Camaroking98 View Post
Yeah that's kinda the range I was expecting power wise to the wheel 700-750...

I'm not missing any supporting mods am I? I told the guy at the shop that I wanted full bolt on plus cam and this is what he came back with.

I'm assuming I'll have a very reliable street build?
I would leave the upper stock and put 10-15% lower on it. Are you changing everything from cam through intake/exhaust valves? BTW, my KongX is for sale
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650.
100+ octanes, no eth, no meth, no N2O.
2/23 - 1031/1004 wheel.
4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes).
2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.
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Old 05-24-2022, 07:13 PM   #10
Camaroking98
 
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Quote:
Originally Posted by JSH View Post
I would leave the upper stock and put 10-15% lower on it. Are you changing everything from cam through intake/exhaust valves? BTW, my KongX is for sale
Going with the 2.3 or 2.5 griptec pulley conservatively just to get me back to the stock boost levels (really don't wanna push crazy boost).

Texas Speed Cam Kit (whatever that has, assuming it comes with all it needs)
Texas Speed LT W Xpipe (assuming it comes with all it needs for install)
Rotofab Big Gulp CAI (assuming it comes with all it needs)
Nick William 103MM Throttle Body (assuming it comes with all it needs for install)

Tune for 91

Am I missing anything?
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Old 05-24-2022, 07:27 PM   #11
Dan82679
 
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Quote:
Originally Posted by Camaroking98 View Post
Going with the 2.3 or 2.5 griptec pulley conservatively just to get me back to the stock boost levels (really don't wanna push crazy boost).

Texas Speed Cam Kit (whatever that has, assuming it comes with all it needs)
Texas Speed LT W Xpipe (assuming it comes with all it needs for install)
Rotofab Big Gulp CAI (assuming it comes with all it needs)
Nick William 103MM Throttle Body (assuming it comes with all it needs for install)

Tune for 91

Am I missing anything?

2.5 is stock do you mean 2.3?
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Old 05-24-2022, 07:46 PM   #12
JSH


 
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Quote:
Originally Posted by Camaroking98 View Post
Going with the 2.3 or 2.5 griptec pulley conservatively just to get me back to the stock boost levels (really don't wanna push crazy boost).

Texas Speed Cam Kit (whatever that has, assuming it comes with all it needs)
Texas Speed LT W Xpipe (assuming it comes with all it needs for install)
Rotofab Big Gulp CAI (assuming it comes with all it needs)
Nick William 103MM Throttle Body (assuming it comes with all it needs for install)

Tune for 91

Am I missing anything?
Yes. Ask Texas Speed for the details of their cam kit (cam, lifters, rocker arms, valve springs, retainers, guides, intake/exhaust valves, seats). You don't really need a 103mm with this build particularly since your blower is stock. Stock upper is 2.5" (not 100% sure) and lower is 8". I suggest a 10% lower.
__________________
'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650.
100+ octanes, no eth, no meth, no N2O.
2/23 - 1031/1004 wheel.
4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes).
2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

Last edited by JSH; 05-24-2022 at 08:01 PM.
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Old 05-24-2022, 07:57 PM   #13
Camaroking98
 
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Quote:
Originally Posted by Dan82679 View Post
2.5 is stock do you mean 2.3?
It's probably the 2.3.
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Old 05-24-2022, 07:58 PM   #14
Camaroking98
 
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Quote:
Originally Posted by JSH View Post
Yes. Ask Texas Speed for the details of their cam kit (cam, lifters, rocker arms, valve springs, retainers, guides, intake/exhaust valves). You don't really need a 103mm with this build particularly since your blower is stock. Stock upper is 2.5" (not 100% sure) and lower is 8". I suggest a 10% lower.
At this point I think I'm gonna drive in some day this week and just get the details ironed out haha.
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