VVT vs Non VVT Cam for road course/street car? - Page 2

6spdhyperblue · 04-15-2022, 11:38 AM

I’ll put a vote for katech.

Unless you want max effort acceleration, go pray, worth the wait

So many go GPI because they lose patience.. I think that’s a mistake

GTO_Gregory · 04-16-2022, 11:00 PM

I think the question is really reliability. The VVT lifters are at the heart of the reliability question. I don't think the lifters were designed for racing. High performance runs, yes, but sustained wide open throttle can cause reliability issues.

I personally debated the question and I'm building a whole new engine.

SilverSurfer18 · 05-19-2022, 12:37 PM

I have two cams that i am trying to sell that are brand new in the boxes and both are great for stock stall in the A10. Got them both and decided to go with a bigger cam and actually get a converter in my A10. VVT2 from TSP and the SS1 from GPI. Shoot me a message

Katech_Zach · 05-19-2022, 01:45 PM

We used to maintain VVT in almost every scenario, but we found that the VVT became uncontrollable with certain cam lobe / valve spring combinations. It was more hassle than it was worth.

You can gain power everywhere in the curve without VVT, with the right combination.

Kmeleon · 05-19-2022, 04:31 PM

Quote:

Originally Posted by Katech_Zach

We used to maintain VVT in almost every scenario, but we found that the VVT became uncontrollable with certain cam lobe / valve spring combinations. It was more hassle than it was worth.

You can gain power everywhere in the curve without VVT, with the right combination.

Great to know, thanks for posting. 👍

Kmeleon · 05-19-2022, 04:32 PM

Quote:

Originally Posted by SilverSurfer18

I have two cams that i am trying to sell that are brand new in the boxes and both are great for stock stall in the A10. Got them both and decided to go with a bigger cam and actually get a converter in my A10. VVT2 from TSP and the SS1 from GPI. Shoot me a message

It's too early for me yet, I was just bench racing for now. I'm running a 6M

04-15-2022, 11:38 AM	#15
6spdhyperblue Drives: 2SS 1LE Join Date: Aug 2013 Location: US Posts: 3,794	I’ll put a vote for katech. Unless you want max effort acceleration, go pray, worth the wait So many go GPI because they lose patience.. I think that’s a mistake __________________

04-16-2022, 11:00 PM	#16
GTO_Gregory Drives: 2016 Camaro Join Date: Oct 2017 Location: Texas & Uncle Sam's Choice Posts: 132	I think the question is really reliability. The VVT lifters are at the heart of the reliability question. I don't think the lifters were designed for racing. High performance runs, yes, but sustained wide open throttle can cause reliability issues. I personally debated the question and I'm building a whole new engine. __________________ 2024 Chevrolet 3500HD Z71, LTZ, 4x4, 6.6 ltr. L5P long-bed. 2016 Camaro 2SS Six-speed, Hotchkis sway bars, Eibach .750" drop springs, Mamo throttle body, E85, BMR stuff. 2006 Quicksilver 6-speed GTO ERL LS3-430, All-Pro 285cc heads, 262/273 .758/.742 116+3 cam, Sheet-metal Intake, 70lb Siemens injectors, SLP, GMM Ripshifter, QA1 Coil-overs front and rear, nylon suspension bushings, Hotchkis, RPM Trans, SPEC twin clutch, SpinTech, Kooks 1 7/8 -2.0", BMR drive train, Kaaz 3.91, Lingenfelter CAI, Baer brakes, mini-tubs, E85.

05-19-2022, 12:37 PM	#17
SilverSurfer18 Drives: 2021 1SS Camaro Join Date: Nov 2018 Location: Tulsa Oklahoma Posts: 121	I have two cams that i am trying to sell that are brand new in the boxes and both are great for stock stall in the A10. Got them both and decided to go with a bigger cam and actually get a converter in my A10. VVT2 from TSP and the SS1 from GPI. Shoot me a message __________________ 2021 Wild Cherry 1SS, LT2 Intake, Rotofab, Borla S-Type, Texas Speed longtubes, SMG flex fuel sensor, GPI Tuning, Bronze 1LE replicas

05-19-2022, 01:45 PM	#18
Katech_Zach Drives: 14 Camaro SS 1LE Join Date: Feb 2019 Location: Clinton Twp, MI Posts: 483	We used to maintain VVT in almost every scenario, but we found that the VVT became uncontrollable with certain cam lobe / valve spring combinations. It was more hassle than it was worth. You can gain power everywhere in the curve without VVT, with the right combination.

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