Back from the tune shop

402ZL1 · 07-12-2019, 09:36 PM

Hey everyone, got my car back from The Shop last week and wanted to share my results and get some opinions.

The build:
2018 ZL1, whipple supercharger with 3.25 upper and 10% lower.
TSP catless headers with Borla Atak exhaust.
Rotofab CAI with Katech throttle body.
Lingenfelter big bore HPFP, DSX low side aux pump, FIC +30% injectors.
weapon x coolers
alky control methanol single nozzle setup.
Mighty mouse catch can

There might be some other stuff that I'm forgetting too. It's tuned for E60 and made 700whp and 677wtq through a mustang dyno which I'm happy about but I do have a few questions about where I should go from here. Have the rotofab, throttle body and stock heads become a restriction? Would I be better off with a big gulp and a 103 or larger throttle body? I'm still on the fence about doing a cam and heads because up until now everything I have done can be easily taken off if I were to ever trade the car in. What does everyone think? Should I just man up and go full send?

Joshinator99 · 07-12-2019, 10:43 PM

The stock size throttle body definitely needs to go! Restrictions on the inlet side of a PD blower are bad news. A Big Gulp is not a bad idea, heck I’ve got one...lol. But the TB is the bigger restriction at this point.

Dixie ZL1 · 07-12-2019, 11:05 PM

The TB is holding you back. Even a 95mm LT5 TB will make a huge difference given all your other upgrades. The tune mod for the 95mm TB (without BG intake) is literally a 2 minute change and can be done remotely if you have HPTuners

Markoz28 · 07-13-2019, 12:29 AM

I’d imagine you would Dyno higher, even on a Mustang Dyno. I think the TB is holding you back and for sure I’d go with the rotofab BG. How big are the headers?

402ZL1 · 07-13-2019, 01:18 AM

Quote:

Originally Posted by Markoz28

I’d imagine you would Dyno higher, even on a Mustang Dyno. I think the TB is holding you back and for sure I’d go with the rotofab BG. How big are the headers?

Headers are 1 7/8", I know I should have gone 2" and I don't know what I was thinking at the time.

VAZL1 · 07-13-2019, 05:35 AM

The fuel systems mods you have would really shine with a cam and yes the stock TB is a restriction. If your not going to do a cam and your not low or high side limited i would go with the LT5 95mm TB, its cheaper and will meet your needs.

unavailablezl1 · 07-13-2019, 08:26 AM

Quote:

Originally Posted by 402ZL1

Headers are 1 7/8", I know I should have gone 2" and I don't know what I was thinking at the time.

I have read that the 2 inch may rub.

IneedAZ · 07-13-2019, 08:49 AM

Quote:

Originally Posted by unavailablezl1

I have read that the 2 inch may rub.

I thought that was brand specific that rubbed, but not 100% positive of that.

VAZL1 · 07-13-2019, 05:11 PM

Quote:

Originally Posted by unavailablezl1

I have read that the 2 inch may rub.

Kooks 2" zero rub....

SJFGTO · 07-13-2019, 05:21 PM

How do you actually use the car? How long are going to keep it? Are you financially able to fix it if (when) stuff breaks? Those are the questions I think you need to answer before you add a cam / heads. FWIW, I agree with the above posts about needing a larger TB. I also think you are right on the edge of actually needing a Big Gulp right now.

meSSohappy · 07-13-2019, 05:31 PM

ARH 2"..no rub

Do the 103 TB.

F419sr1 · 07-14-2019, 09:45 AM

Were you spray the methanol? I have a whipple 3.5 stock lower 1 7/8 rotofab and a low side voltage booster. I was only able to get e40 and made 698. On fuel only 665. I’m kind of in the same place you are. Iv been told heads aren’t needed but I keep thinking all the money is already spent pulling them. For the $1000 is the few hp worth it? With a cam for fueling 800s are a easy step

Jimabe · 07-15-2019, 08:23 AM

Quote:

Originally Posted by VAZL1

Kooks 2" zero rub....

+1 on 2" Kooks, no rubs, or other issues.

I just switched to Big Gulp from regular Gulp and had a re-tune from different tuner and picked up 30hp, but according to tuner, most of that was from him.

I do have the stock Mamo-ported TB and it looks waaay out of place now(restrictive)...so she's going back for a 103 and Jokerz ported supercharger. Will report back when i get numbers.

It's going in tomorrow for the Boost Chiller install, so will report on those number changes as well. Getting hot/humid in MidWest so should see some returns on this...

07-12-2019, 09:36 PM	#1
402ZL1 Drives: 2018 Camaro ZL1 Join Date: Sep 2017 Location: Omaha, NE Posts: 43 View My Garage	Back from the tune shop Hey everyone, got my car back from The Shop last week and wanted to share my results and get some opinions. The build: 2018 ZL1, whipple supercharger with 3.25 upper and 10% lower. TSP catless headers with Borla Atak exhaust. Rotofab CAI with Katech throttle body. Lingenfelter big bore HPFP, DSX low side aux pump, FIC +30% injectors. weapon x coolers alky control methanol single nozzle setup. Mighty mouse catch can There might be some other stuff that I'm forgetting too. It's tuned for E60 and made 700whp and 677wtq through a mustang dyno which I'm happy about but I do have a few questions about where I should go from here. Have the rotofab, throttle body and stock heads become a restriction? Would I be better off with a big gulp and a 103 or larger throttle body? I'm still on the fence about doing a cam and heads because up until now everything I have done can be easily taken off if I were to ever trade the car in. What does everyone think? Should I just man up and go full send?

07-12-2019, 10:43 PM	#2
Joshinator99 Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018 Location: Petersham MA Posts: 4,758	The stock size throttle body definitely needs to go! Restrictions on the inlet side of a PD blower are bad news. A Big Gulp is not a bad idea, heck I’ve got one...lol. But the TB is the bigger restriction at this point. __________________ 2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion *1059 WHP/944 WTQ, 9.48@150*

07-13-2019, 05:35 AM	#6
VAZL1 Drives: 17 ZL1 Join Date: Mar 2017 Location: VA Posts: 1,075	The fuel systems mods you have would really shine with a cam and yes the stock TB is a restriction. If your not going to do a cam and your not low or high side limited i would go with the LT5 95mm TB, its cheaper and will meet your needs. __________________ 2017 ZL1 Coupe M6, Red Hot Mods; AFE Pro 5R CAI, Kong Ported Blower and Snout, NW 103 TB, Griptech 2.31 Upper, Kooks 2",JMS Voltage Booster, Flex Fuel, Mighty Mouse CC,Jannetty Racing Tune, 680 rwhp

07-13-2019, 05:21 PM	#10
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,061	How do you actually use the car? How long are going to keep it? Are you financially able to fix it if (when) stuff breaks? Those are the questions I think you need to answer before you add a cam / heads. FWIW, I agree with the above posts about needing a larger TB. I also think you are right on the edge of actually needing a Big Gulp right now. __________________ 2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm Four that wanna own me Two that wanna stone me One says she's a friend of mine...

07-13-2019, 05:31 PM	#11
meSSohappy Drives: 2018 ZL1 A10 Join Date: May 2012 Location: British Columbia, Canada Posts: 1,372	ARH 2"..no rub Do the 103 TB. __________________ DAVENPORT STAGE 2 PLUS - 2" ARH ceramic coated headers - 3" ARH catless exhaust - Stock NPP mufflers - Kong ported SC - Katech 103 ported TB - Rotofab 5" Big gulp CAI - 22.5% lower pulley - ATI Harmonic balancer - Cordes SC expansion tank - MSD hi temp ignition wires - Koolsox spark plug insulators - custom tunes - 660hp/725tq pump - 713hp/763tq race

07-12-2019, 11:05 PM	#3
Dixie ZL1 NOXQCES ZL1 Drives: 2017 Camaro ZL1 Join Date: Mar 2019 Location: Huntsville AL Posts: 307	The TB is holding you back. Even a 95mm LT5 TB will make a huge difference given all your other upgrades. The tune mod for the 95mm TB (without BG intake) is literally a 2 minute change and can be done remotely if you have HPTuners

07-13-2019, 12:29 AM	#4
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	I’d imagine you would Dyno higher, even on a Mustang Dyno. I think the TB is holding you back and for sure I’d go with the rotofab BG. How big are the headers?

07-14-2019, 09:45 AM	#12
F419sr1 Drives: 2017 ZL1 Join Date: Jun 2018 Location: Randolph Posts: 317	Were you spray the methanol? I have a whipple 3.5 stock lower 1 7/8 rotofab and a low side voltage booster. I was only able to get e40 and made 698. On fuel only 665. I’m kind of in the same place you are. Iv been told heads aren’t needed but I keep thinking all the money is already spent pulling them. For the $1000 is the few hp worth it? With a cam for fueling 800s are a easy step __________________ Kooks full exhaust, Roto Fab, Whipple,Williams 103, Fore innovation, JRE cam and tuning

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