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Old 06-02-2018, 12:32 AM   #1
RabbitZL1
 
Drives: 2018 Camaro ZL1
Join Date: Dec 2017
Location: Queens, NY
Posts: 28
My small build thread.....

Hey hows it going. The purpose of this thread is to show my experience with different mods and their effect on my 18 A10 ZL1. Prior to this, I had a 2014 Grand Cherokee SRT that had a 426, F1A procharger, nitrous and ran on e85. I do all of my own work (including tuning) except engine builds.

The ZL1 was purchased December 20th 2017. Drove it for a week and with 90 miles on the cluster, I removed the supercharger and sent it to Kong Performance to have it ported along with the snout. Never baselined the car because I'm an idiot but thats another story. I took an average of a few stock ZL1s and came up with 544hp as a baseline The Supercharger came back after a few weeks and I decided to send it to nitrous outlet to have spray bars installed. While it was away, the weather started to get better and I wanted to go to the track. A friend of mine has a 2016 cts v that got a whipple installed (was on Race proven motorsports youtube channel) so i borrowed his stock blower, installed stainless works 2" headers, rotofab and went to atco raceway with the stock tune. With 250 miles on it, first pass was 11.26 @ 126mph (I know i know break-in blah blah blah). It went 11.2x all day with a best pass of 11.20. Fast forward to yesterday, with the Kong Performance Ported supercharger, snout, and 103 tb, it made 588hp on 93 and 621hp on 93 with a little meth SAE. This is with stock upper and lower pulleys. Didnt work on the 93 tune much because it will be on e85 soon, so that number was from me street tuning. My next addition will be ethanol (along with dsx auxiliary fuel system) and a custom 5" intake. The 5" intakes have been proven to gain power on LSAs so i'll give it a try. After the intake will be a 9.55 lower pulley then 150 shot of nitrous. My goal is to have a 9.50 car with no cam. Since I havent seen any real gains from head/cam packages, i'll probably never get one. Im very pleased with the results from this first stage of mods. Definitely recommend a Kong performance ported blower if you are looking for more power but want to keep it simple.

Dyno sheet 93 VS 93 and Meth.




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Old 06-02-2018, 01:29 AM   #2
Mcmillion
 
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Cool build. Subscribed
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Old 06-02-2018, 06:46 AM   #3
IneedAZ


 
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Is the exhaust stock except for the headers or did you delete converters?
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Old 06-02-2018, 06:52 AM   #4
RabbitZL1
 
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Quote:
Originally Posted by IneedAZ View Post
Is the exhaust stock except for the headers or did you delete converters?
Stainless works 2" headers, No cats, Stainless works mid section back to stock muffler
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Old 06-02-2018, 11:05 AM   #5
newchevyman
 
Drives: 2017 Camero ZL1
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Following. I'm interested in seeing how well my A10 will do with stock heads/cam and similar mods with some cooling improvements. I bet blower only it'll go mid 10s as is, tune alone with intake/headers would provide significant gains and with ported blower even more. Awesome build!
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Old 06-02-2018, 11:18 AM   #6
RabbitZL1
 
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Quote:
Originally Posted by newchevyman View Post
Following. I'm interested in seeing how well my A10 will do with stock heads/cam and similar mods with some cooling improvements. I bet blower only it'll go mid 10s as is, tune alone with intake/headers would provide significant gains and with ported blower even more. Awesome build!
I think it will have no problem going a high 9
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Old 06-02-2018, 12:16 PM   #7
Markoz28
 
Drives: 18 ZL1 nightfall grey A10
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Very different perspective of build. Im now interested in porting the stock super charger.
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Old 06-02-2018, 12:55 PM   #8
Hard Parker
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Why stock pulley
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Old 06-02-2018, 01:56 PM   #9
RabbitZL1
 
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Why stock pulley
Was done just to see the gains of the ported supercharger. I have a 9.55 going on in a few weeks
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Old 06-02-2018, 02:29 PM   #10
big dave

 
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This sounds like a cool build. Unfortunately, since it was dynoed with headers, we just don't know how much power the ported blower and throttle body actually gave you. I assume headesr are worth between 20 - 25 rwhp. I could be wrong though. That's what I picked up on my stock, high mileage ls1.
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https://youtu.be/EyHtdH9XOkY
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'13 ZL1 BRM A6. 11.591 @ 119.2 factory stock with a 1.68 60'! Best stock mph 121.8. 11.29 @ 123 RotoFab, drag radials and skinnies. 4360# raceweight.
http://youtu.be/yggIA3C_kkA 2014... back to stock
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Old 06-02-2018, 04:45 PM   #11
RabbitZL1
 
Drives: 2018 Camaro ZL1
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Quote:
Originally Posted by big dave View Post
This sounds like a cool build. Unfortunately, since it was dynoed with headers, we just don't know how much power the ported blower and throttle body actually gave you. I assume headesr are worth between 20 - 25 rwhp. I could be wrong though. That's what I picked up on my stock, high mileage ls1.

I can't say, but I will ask if anyone can find me a stock pullied lt4 with more power that wasnt ported by Kong?

On another note, did some test fitting of a set of Forgestar F14 drag wheels. I believe i am the first to try the 18x5 fronts. They just BARELY clear. Cant use stick on weights to balance them as they will hit the caliper. I weighed all the wheels with tires and this was the result:
OEM:
Front 60lbs
Rear 61lbs
FORGESTAR
Front 45lbs
Rear 48lbs

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Old 06-02-2018, 05:10 PM   #12
newchevyman
 
Drives: 2017 Camero ZL1
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Quote:
Originally Posted by big dave View Post
This sounds like a cool build. Unfortunately, since it was dynoed with headers, we just don't know how much power the ported blower and throttle body actually gave you. I assume headers are worth between 20 - 25 rwhp. I could be wrong though. That's what I picked up on my stock, high mileage ls1.
You're comparing headers on an NA car to a blower car, apples to oranges.
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2007 Z06 H/C/I/E -sold

Last edited by newchevyman; 06-03-2018 at 10:33 AM.
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Old 06-03-2018, 08:05 AM   #13
EXSSIVE
 
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Not only that, but the ls1 had a junk manifold design compared to the advancements with the design of the 6tg gens tri-y headers.
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Old 06-03-2018, 08:30 AM   #14
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How much of the gain was attributed to the 103 mm TB? How much was attributed to the porting.. it makes since to do a 103 but since we measuring true gains and not everyone can dish out 600 for tb after 1000 plus for porting
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