Wisher Performance Auxjection - Page 2

2023_ZL1-AUTO · 04-07-2026, 01:07 PM

Great find! That could really be a game changer! For sure help a lot of people that don't want to do the full port plate with 8 fuel injector route. Really cool!

Katech_Mike · 04-16-2026, 03:20 PM

We installed a Wisher kit this week. Worked very well and the support is excellent. H/C/X-port ZL1 made 820RWHP on full E85 without issue.

KingLT1 · 04-17-2026, 10:14 AM

Quote:

Originally Posted by Katech_Mike

We installed a Wisher kit this week. Worked very well and the support is excellent. H/C/X-port ZL1 made 820RWHP on full E85 without issue.

Is that with the stock high side and an upgraded low side?

ZLRob · 04-17-2026, 10:38 AM

Quote:

Originally Posted by Katech_Mike

We installed a Wisher kit this week. Worked very well and the support is excellent. H/C/X-port ZL1 made 820RWHP on full E85 without issue.

This is promising news. Did you guys get before power measurements on the engine prior to installing the Wisher aux- jection set up?

ULTRAZLS1 · 04-17-2026, 07:51 PM

I’m taking my 2650 car to his shop on May 2nd for fitment on Magnuson cars. Says it will take about a week mostly for fuel line fitment.

So it won’t be long this will be available on Magnuson setups as well.

ULTRAZLS1 · 04-17-2026, 08:01 PM

Fuel distribution is excellent he has all the data to back it up. Ryan totally backs this product. Nobody on the planet much better than him With the gen v LT1 platform. If he says it’s good. It’s good. IMO

1000 rwhp + supported I was told since I already have a stout DI setup , 38% cam, 50 injectors, aux pump etc etc.

KingLT1 · 04-18-2026, 08:55 AM

Quote:

Originally Posted by ULTRAZLS1

I’m taking my 2650 car to his shop on May 2nd for fitment on Magnuson cars. Says it will take about a week mostly for fuel line fitment.

So it won’t be long this will be available on Magnuson setups as well.

Nice. He offered me to bring my car down to him for the Whipple, but I believe someone else tried the base LT4 setup and it fits the 3.0.

ULTRAZLS1 · 04-18-2026, 10:47 AM

Quote:

Originally Posted by KingLT1

Nice. He offered me to bring my car down to him for the Whipple, but I believe someone else tried the base LT4 setup and it fits the 3.0.

Yep I heard that too

Katech_Mike · 04-21-2026, 09:08 AM

Quote:

Originally Posted by KingLT1

Is that with the stock high side and an upgraded low side?

38% lobe, LT4 HPFP, and our new Stage 1 injectors. It didn't need the DI injectors but it had an aftermarket HPFP before that wasn't up to the task.

Katech_Mike · 04-21-2026, 09:09 AM

Quote:

Originally Posted by ZLRob

This is promising news. Did you guys get before power measurements on the engine prior to installing the Wisher aux- jection set up?

Not really. Made 720RWHP before HPFP angle hit 130 and power fell off.

Katech_Mike · 04-21-2026, 09:14 AM

Quote:

Originally Posted by ULTRAZLS1

Fuel distribution is excellent he has all the data to back it up. Ryan totally backs this product. Nobody on the planet much better than him With the gen v LT1 platform. If he says it’s good. It’s good. IMO

1000 rwhp + supported I was told since I already have a stout DI setup , 38% cam, 50 injectors, aux pump etc etc.

I don't think it will go to 1,000RWHP unless the dyno is really happy.

We were already in the low 80's for DC at 820RWHP with 38% lobe, LT4 HPFP, Ect.

I think it's a great fueling option for ~900RWHP. It's a 1/4 of the cost of full port.

Evansa22 · 04-21-2026, 11:57 AM

Quote:

Originally Posted by Katech_Mike

38% lobe, LT4 HPFP, and our new Stage 1 injectors. I didn't need the DI injectors but it had an aftermarket HPFP before that wasn't up to the task.

Using your guys upgraded lowside as well?

Katech_Mike · 04-21-2026, 03:11 PM

Quote:

Originally Posted by Evansa22

Using your guys upgraded lowside as well?

This car has a DSX aux pump on it.

Z OH 6 · 04-21-2026, 03:57 PM

Quote:

Originally Posted by Katech_Mike

I don't think it will go to 1,000RWHP unless the dyno is really happy.

We were already in the low 80's for DC at 820RWHP with 38% lobe, LT4 HPFP, Ect.

I think it's a great fueling option for ~900RWHP. It's a 1/4 of the cost of full port.

So, is the consensus that this style of port injection won't do any harm to the supercharger? No risks, only benefits?

04-07-2026, 01:07 PM	#15
2023_ZL1-AUTO Drives: 2023 ZL1 Join Date: Dec 2022 Location: Columbus, Ohio Posts: 1,273	Great find! That could really be a game changer! For sure help a lot of people that don't want to do the full port plate with 8 fuel injector route. Really cool! __________________ Katech Track Day CAM 38%•BTR Dual Valve Springs-Johnson Lifters•Trend 3/8 Chromoly Pushrods• VVT Del•CNC Ported Heads•AFM Delete• C5-R Timing Chain•Katech Oil Pump•Katech 112mm•Maggie 2650 3.25” Upper & ATI SD w/10.32” +20%•10 Rib Belt•RFBG•FI Interchiller Stage 2•THPSI Port w/875cc Inj•Dual Drop In Fuel Pump•DSX Aux Pump•Stainless Works 2" w/Legend NPP Axle Back•GESI UHO 4.5" CATs•Brisk RR14S Plugs•BMR Motor Mounts•BMR Cradle Lockout/Bushings Kit•DSS Chromoly DS•RPM 8-Point Roll Cage•10lb FireSense+ w/4Fire SFI 17.1 Fire Sys•Weld Forged Vitesse Rear 17x10 Beadlocks-Front 18x6•Unlocked TCM

04-16-2026, 03:20 PM	#16
Katech_Mike Drives: 2015 Camaro ZL1 Join Date: Oct 2020 Location: Clinton Twp, Michigan Posts: 335	We installed a Wisher kit this week. Worked very well and the support is excellent. H/C/X-port ZL1 made 820RWHP on full E85 without issue.

04-17-2026, 07:51 PM	#19
ULTRAZLS1 Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009 Location: Jackson, Michigan Posts: 4,423	I’m taking my 2650 car to his shop on May 2nd for fitment on Magnuson cars. Says it will take about a week mostly for fuel line fitment. So it won’t be long this will be available on Magnuson setups as well.

04-17-2026, 08:01 PM	#20
ULTRAZLS1 Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009 Location: Jackson, Michigan Posts: 4,423	Fuel distribution is excellent he has all the data to back it up. Ryan totally backs this product. Nobody on the planet much better than him With the gen v LT1 platform. If he says it’s good. It’s good. IMO 1000 rwhp + supported I was told since I already have a stout DI setup , 38% cam, 50 injectors, aux pump etc etc.

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