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Search: Posts Made By: Karl
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 2 Weeks Ago
Replies: 6
Views: 1,273
Posted By Karl
Re: WTB:OEM Dual Mass Flywheel

I am not affiliated with the seller.

https://www.corvetteforum.com/forums/c4-parts-for-sale-wanted/4807632-nos-dual-mass-flywheels-zr1-lt5-and-lt1-lt4-l98.html
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 4 Weeks Ago
Replies: 3
Views: 1,101
Posted By Karl
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 09-15-2024
Replies: 3
Views: 1,101
Posted By Karl
F/S One Walbro GSS343GS 255LPH fuel pump

I recently swapped to a single fuel pump and have a extra genuine WALBRO/TI GSS343G3 255LPH Fuel Pump + Kit that I do not need and want to sell.

$90 shipped obo.

This pump is good for up to 650...
Forum: C4 ZR-1 General Postings 08-14-2024
Replies: 1
Views: 1,591
Posted By Karl
Re: Former owner of Beast 2

No I wasn't aware he passed in 2022. My condolences to the family.🙏

Seems a lot of great people have driven this car and it has been coast to coast and on quite a few Dyno test.
Forum: C4 ZR-1 Technical Postings 05-12-2024
Replies: 11
Views: 14,235
Posted By Karl
Forum: C4 ZR-1 Technical Postings 05-12-2024
Replies: 11
Views: 14,235
Posted By Karl
Re: Help with code 43 and 55

The knock sensor is on the driver side and is mounted "dry" into the block so it can be removed and no coolant will come out.

I had a code 43 years ago and my knock sensor was not mounted tightly...
Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted 05-01-2024
Replies: 2
Views: 2,192
Posted By Karl
Re: WTB: New or Rebuilt Power Steering Pump

If you cannot find a new one here is information on the rebuild kits.

https://www.zr1.net/forum/showthread.php?t=30896&page=2
Forum: C4 ZR-1 Technical Postings 04-11-2024
Replies: 17
Views: 13,251
Posted By Karl
Re: Solution for B&B Exhaust Drone?

Two resonators?

#IDTS

You will be better off #IMO with a used a C4 LT4 exhaust cat back system (2 3/4" vs 2 1/2") and replace the LT4 resonator with a x pipe ane with the x pipe as close to the...
Forum: C4 ZR-1 Technical Postings 04-09-2024
Replies: 17
Views: 13,251
Posted By Karl
Re: Solution for B&B Exhaust Drone?

Yes I have the old style B&B the resonator is an x pipe but I swapped in a true x pipe. It did minimal for the drone but imo it's not that bad. I like my car loud so it's no big deal.

The new B&B...
Forum: C4 ZR-1 Technical Postings 04-05-2024
Replies: 17
Views: 13,251
Posted By Karl
Re: Solution for B&B Exhaust Drone?

Either upgrade to their new system or try this. I deleted my resonator and installed an x pipe but have not done the NPP mod.

https://www.zr1.net/forum/showthread.php?t=22512
Forum: C4 ZR-1 Technical Postings 04-04-2024
Replies: 30
Views: 9,722
Posted By Karl
Re: Headers

"Sorry, this item is out of stock"

Those went quick!
Forum: C4 ZR-1 Technical Postings 04-03-2024
Replies: 22
Views: 6,400
Posted By Karl
Re: Continuing angst... headers today...

I have had OBX headed on both my cars. They touched the steering rack on my '92 and Pete dimpled them during installation.

My '93 did not require any clearance for the steering rack.

FWIW both...
Forum: C4 ZR-1 General Postings 03-25-2024
Replies: 3
Views: 1,205
Posted By Karl
Re: Repaint vs car wrap

A Corvette junk yard. It is a standard C4 Corvette hood.
Forum: C4 ZR-1 General Postings 03-08-2024
Replies: 26
Views: 5,101
Posted By Karl
Re: A question for the longtime owners.

I have thought about getting a C6 ZR1 but ever since the engine upgrade I really have not thought about selling it much.
Forum: C4 ZR-1 Technical Postings 03-04-2024
Replies: 15
Views: 18,097
Posted By Karl
Re: Ported plenum..

Pete and Marc both do porting.
Forum: C4 ZR-1 Technical Postings 10-25-2023
Replies: 12
Views: 5,838
Posted By Karl
Re: Limits of stock LT5 with boost?

Yes I have a closed deck 401 by Pete.

https://www.zr1.net/forum/showthread.php?t=28322
Forum: C4 ZR-1 Technical Postings 10-24-2023
Replies: 12
Views: 5,838
Posted By Karl
Re: Limits of stock LT5 with boost?

You will need a closed deck motor to handle any meaningful boost or the above mentioned mod by lingenfelter.
Forum: C4 ZR-1 Technical Postings 06-22-2023
Replies: 38
Views: 6,538
Posted By Karl
Re: After Market Air Filter Housing Question

If you cut the bottom of the shroud this way you won't be able to seal the air filter properly and the intake will take in unfiltered air
Forum: C4 ZR-1 Technical Postings 06-15-2023
Replies: 38
Views: 6,538
Posted By Karl
Re: After Market Air Filter Housing Question

IMHO you really don't need the instructions. If you want to cut the housing just trace it and take your time cutting as to not damage the air conditioning condenser.

The rest is a standard cut air...
Forum: C4 ZR-1 Technical Postings 06-15-2023
Replies: 38
Views: 6,538
Posted By Karl
Re: After Market Air Filter Housing Question

Looks like yours came with the air scoop. I have had two and neither came with it.

You can see how the air filter is fully exposed and the housing cut for the air filter.

Similar to the...
Forum: C4 ZR-1 Technical Postings 06-15-2023
Replies: 38
Views: 6,538
Posted By Karl
Re: After Market Air Filter Housing Question

This is a cold air intake. I have the same one on my car.

The air filter lid and radiator shroud need to be cut open to make it work properly.
Forum: C4 ZR-1 Technical Postings 09-09-2022
Replies: 26
Views: 7,213
Posted By Karl
Re: 0W40?

Edit
Forum: C4 ZR-1 Technical Postings 09-09-2022
Replies: 26
Views: 7,213
Posted By Karl
Re: 0W40?

I am using Mobil 1 Formula M 5w40 with no issues.

The European motor oils appear to have more zinc and phosphorus.

Car runs great and this is used in my 401 cid LT5. I chose this weight combo...
Forum: C4 ZR-1 Technical Postings 08-31-2022
Replies: 2
Views: 5,555
Posted By Karl
Re: where can i buy an underdrive (larger) pulley for my waterpump and alternator?

Try Pete for the water pump. Not sure about the alternator.

https://zr1pete.wordpress.com/parts/
Forum: C4 ZR-1 Technical Postings 08-16-2022
Replies: 21
Views: 13,229
Posted By Karl
Re: Exhaust doubts

OBX or stainless works 2" header. I would get either jet hot coated.
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