Can you get 500rwhp out of L99 w/ bolt ons only? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bo White · 01-01-2021, 04:14 AM

Quote:

Originally Posted by Rmkuper

Lots of good info here fellas thanks!

I'm installing GPI Stage 2 VVT in the next couple months. WILE I have the heads off I'm going to have them CNC ported with bowl/valve blending. I'm considering porting the intake and TB also but I think I will do Fast102 at some point so I'm on the fence on that one. I plan on a 3200 Stall and 3.73 gears but not ready to drop the tranny just yet probably just before summer when I'm driving it a little more. Any advice on what else to do while I got her opened up? I currently have LTH, Catback CAI and tune.

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Also look into a 4200 instead of a 3200. 3200 stalls work well with a stock cam.

1JEWLDSSRS · 01-01-2021, 09:17 AM

Quote:

Originally Posted by Bo White

Also look into a 4200 instead of a 3200. 3200 stalls work well with a stock cam.

Agreed with Bo on this one for sure!! I have the TSP Stage 3 in my Camaro and ran a 3200 for 3 years and it was just not enough stall for the car. I listened to a few guys on here and went CircleD 5C 4200 Pro series single disc and let me tell you, what a HUGE difference it made in the cars performance!! Wow. Like Bo said, 3200 is good for a stocker.. Good luck with your build.

joshnmn · 01-01-2021, 11:52 AM

Quote:

Originally Posted by Bo White

Granted my th400 doesn't have a lock up converter but when I swapped over from manual to th400 I went from 479rwhp to 437rwhp.
On another note I dropped a 1/2 second on my times after the swap.

Ashen L99 · 01-02-2021, 02:35 AM

I would bet the 6l80 eats 15% or more on drivetrain loss, where as the tr6060 is 10% or less. Any L99 above 450whp should move out nicely.

Bo White · 01-02-2021, 10:23 AM

I alwats figure manuals at 15% and autos at 20% or more if no lockup

1JEWLDSSRS · 01-02-2021, 01:46 PM

Quote:

Originally Posted by Ashen L99

I would bet the 6l80 eats 15% or more on drivetrain loss, where as the tr6060 is 10% or less. Any L99 above 450whp should move out nicely.

Yes sir, my L99 Camaro with the 4200 stall gets off the line pretty quickly!! I really need to put the DR's on so I can get better traction, but for now, I just feather it then romp on it. Also because she gets going so quickly, I haven't done the 3.91 gear swap yet, kinda thinking I really don't need to... She's just plain quick.

SSkat · 01-04-2021, 12:50 PM

GPI max kit has been putting L99s at around 500 wheel iirc. I have a TSP stage 2 now and love it but wish I had gone F35 cam and saved for some PRC 260 heads. That combo with a mid/high runner intake manifold would be close to 500 as well.

Bo White · 01-04-2021, 03:33 PM

Quote:

Originally Posted by SSkat

GPI max kit has been putting L99s at around 500 wheel iirc. I have a TSP stage 2 now and love it but wish I had gone F35 cam and saved for some PRC 260 heads. That combo with a mid/high runner intake manifold would be close to 500 as well.

487rwhp on the local Dynojet. My buddy runs that combo and loves it. The F35 with the PRC 260s work very well with each other. He has moved to a mid runner since his dyno so it will be close.

SSkat · 01-04-2021, 04:05 PM

Quote:

Originally Posted by Bo White

487rwhp on the local Dynojet. My buddy runs that combo and loves it. The F35 with the PRC 260s work very well with each other. He has moved to a mid runner since his dyno so it will be close.

Yeah should definitely be over that 500 mark with that mid runner. I want the same but with the holley high ram. Do you know what your buddy is shifting at?

Roader · 01-04-2021, 07:01 PM

Really need to get rid of short runner intake...

Ss4, milled heads, and e85

Ashen L99 · 01-04-2021, 11:45 PM

I’ve seen the LOD intake pop up a lot here this past year and that may get put on my list of things to do. High ram performance without cutting the hood! I wonder how much torque I’ll give up though... should put me closer to the 500 mark.

Bo White · 01-05-2021, 05:47 AM

Edelbrock Pro Flo fits stock hood too for a fraction of the cost.

Chris49066SS · 01-05-2021, 08:28 AM

Quote:

Originally Posted by Ashen L99

I’ve seen the LOD intake pop up a lot here this past year and that may get put on my list of things to do. High ram performance without cutting the hood! I wonder how much torque I’ll give up though... should put me closer to the 500 mark.

True there is the hood fitment, but if you look at the price point, you can get a Hi-Ram and a cowl hood for a comparable price. But with the Hi-Ram you also lose a windshield wiper, so weigh it all in. As for torque, I lost 18 ft/lbs, but the car picked up over a tenth in the quarter after this intake went in. Thats with the 90mm TB and stock heads. Expecting a hair more when I get everything ported and port matched.

TheFlyingBananaSS · 01-05-2021, 10:25 AM

I would also jump to a stage 3 or 4 cam right away. I have the VVT stage 2 GPI and it is a radical change from stock but I am already looking into a stage 3 or no fly cut stage 4. Also get at least a 3800 converter. I'll be sending mine to get refreshed to a 3800 or 4k at some point.

01-02-2021, 02:35 AM	#18
Ashen L99 Drives: Ashen grey, 1SS, L99 Join Date: Aug 2016 Location: Oklahoma Posts: 533	I would bet the 6l80 eats 15% or more on drivetrain loss, where as the tr6060 is 10% or less. Any L99 above 450whp should move out nicely. __________________ Roto-fab big gulp, Nick Williams 102mm TB, Kong X-port LSA, Ported LS3 heads, BTR stage 4 V2 pd cam, 416 CI bottom end, original block. TSP 2” long tubes, Corsa ZL-1 catback. Nitrous Outlet 102mm plate kit/100 shot JUST IN CASE. NGK BR7EF plugs with Taylor plug wires. DSX flex fuel kit, 1 Walbro 450lph, 2 525lph return style fuel system, deatchwork 1000cc injectors. B&M deep trans pan, stock 6L90 converter, ZL1 diff 3.23 ratio. GM ground effects, T-Rex upper grill, Z/28 Spoiler, Lolly pop Lime brake calipers, Forgestar F14s, 12” subwoofer, and custom paint matched interior.

01-04-2021, 07:01 PM	#24
Roader Drives: Camaro Join Date: Oct 2018 Location: Alabama Posts: 673	Really need to get rid of short runner intake... Ss4, milled heads, and e85 Attached Images

01-04-2021, 11:45 PM	#25
Ashen L99 Drives: Ashen grey, 1SS, L99 Join Date: Aug 2016 Location: Oklahoma Posts: 533	I’ve seen the LOD intake pop up a lot here this past year and that may get put on my list of things to do. High ram performance without cutting the hood! I wonder how much torque I’ll give up though... should put me closer to the 500 mark. __________________ Roto-fab big gulp, Nick Williams 102mm TB, Kong X-port LSA, Ported LS3 heads, BTR stage 4 V2 pd cam, 416 CI bottom end, original block. TSP 2” long tubes, Corsa ZL-1 catback. Nitrous Outlet 102mm plate kit/100 shot JUST IN CASE. NGK BR7EF plugs with Taylor plug wires. DSX flex fuel kit, 1 Walbro 450lph, 2 525lph return style fuel system, deatchwork 1000cc injectors. B&M deep trans pan, stock 6L90 converter, ZL1 diff 3.23 ratio. GM ground effects, T-Rex upper grill, Z/28 Spoiler, Lolly pop Lime brake calipers, Forgestar F14s, 12” subwoofer, and custom paint matched interior.

01-05-2021, 05:47 AM	#26
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,041	Edelbrock Pro Flo fits stock hood too for a fraction of the cost. Attached Images

01-05-2021, 10:25 AM	#28
TheFlyingBananaSS Evil Genius of Chevrolet Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017 Location: New York Posts: 3,260	I would also jump to a stage 3 or 4 cam right away. I have the VVT stage 2 GPI and it is a radical change from stock but I am already looking into a stage 3 or no fly cut stage 4. Also get at least a 3800 converter. I'll be sending mine to get refreshed to a 3800 or 4k at some point. __________________ GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.

01-02-2021, 10:23 AM	#19
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,041	I alwats figure manuals at 15% and autos at 20% or more if no lockup

01-04-2021, 12:50 PM	#21
SSkat Drives: 2010 Camaro 2SS Join Date: Mar 2018 Location: Pensacola, FL Posts: 268	GPI max kit has been putting L99s at around 500 wheel iirc. I have a TSP stage 2 now and love it but wish I had gone F35 cam and saved for some PRC 260 heads. That combo with a mid/high runner intake manifold would be close to 500 as well.