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Search: Posts Made By: rkreigh
Forum: C4 ZR-1 Technical Postings 01-17-2024
Replies: 14
Views: 1,325
Posted By rkreigh
Re: Horsepower difference ?

improved intake port alignment. Bit better heads and cams, improved exhaust and header/cats.

405 hp blocks also had 4 bolt mains and all of them were made in 1993
Forum: C4 ZR-1 Technical Postings 06-14-2022
Replies: 6
Views: 826
Posted By rkreigh
Re: Do base c4 wheels fit?

get some old cheap carpet sample squares. double them up and pull up and you won't flat spot

they make a fancy tire cradle out of foam, but the carpet samples are cheap and ez
Forum: C4 ZR-1 Technical Postings 06-14-2022
Replies: 8
Views: 875
Posted By rkreigh
Re: Track cooling recommendations

do some searches on posts from Tyler Townsley He did some very good write ups on the bypass and removing it.

If you spend LOTS of time above 6000 rpms and have a rad capable of the gpm flow and...
Forum: C4 ZR-1 Technical Postings 06-14-2022
Replies: 51
Views: 4,193
Posted By rkreigh
Re: Who is running dry shot nitrous? Curious about it

not too many nitrous warriors on the lt5 there was a nice safe NOS dry kit and other more aggressive direct port stuff that Julio and Kurt did on some 415s. Lots of wounded warriors and not too...
Forum: C4 ZR-1 Technical Postings 05-20-2022
Replies: 8
Views: 875
Posted By rkreigh
Re: Track cooling recommendations

the thick core dewitt and ron davis radiators do a great job

run a dedicated bigger oil cooler If you upgrade to the high quality radiators that can stand the pressure, you can get rid of the...
Forum: C4 ZR-1 Technical Postings 05-20-2022
Replies: 13
Views: 1,466
Posted By rkreigh
Re: Will 335 35 17 fit up front?

I have a set of CCW black center classics 17X12 up front and 17 X 12.5 in back

they have an older set of hoosiers mounted up. PM me if interested.

Not cheap but they allow 315 up front and...
Forum: C4 ZR-1 Technical Postings 03-16-2022
Replies: 69
Views: 12,934
Posted By rkreigh
Re: Which coil pack do you have?

wow, didn't know the magnecore had that guarantee. I think I still have them and might see if they stand up and replace the one wire that shat the bed

no critters, I was still driving the car...
Forum: C4 ZR-1 General Postings 03-16-2022
Replies: 6
Views: 883
Posted By rkreigh
Re: Michelin Pilot Sport 2 available

great sizes. I have some old 17 CCWs that might have some hope!!
Forum: C4 ZR-1 General Postings 03-16-2022
Replies: 102
Views: 79,283
Posted By rkreigh
Re: New Owners/National list of Z Shops

LSV still isn't done. Damn shame too as I miss driving it.

another GB TT is just what the Dr ordered!!!

I'm working on 3 vettes right now and none of em run. At least they will all be fast...
Forum: C4 ZR-1 Technical Postings 03-07-2022
Replies: 69
Views: 12,934
Posted By rkreigh
Re: Which coil pack do you have?

I know this is a very old thread, but so far I haven't seen any evidence of

1. fancy spark plugs
2. super conductor wires
3. coils that are "better" than factory

the gm stuff works and will...
Forum: C4 ZR-1 General Postings 03-07-2022
Replies: 102
Views: 79,283
Posted By rkreigh
Re: New Owners/National list of Z Shops

Amen~! some of my best times were hanging with Graham after John passed. Graham has forgotten more than we'll ever know and has built the lt5 in the most amazing configurations. Riding around...
Forum: C4 ZR-1 Technical Postings 01-05-2022
Replies: 16
Views: 1,390
Posted By rkreigh
Re: More Whoa Power

wow, those look awesome and it's cool retaining the hub emergency brake for less hassle. Bring er out to katies!! looking good.
Forum: C4 ZR-1 Technical Postings 12-29-2021
Replies: 27
Views: 2,622
Posted By rkreigh
Re: lost spark in cylinder 1

so we believe we have good DIS, coils, wires, spark plugs, but still no joy?? So within the electrical system likely we don't have a trigger for the coil to fire on the dead hole. This indeed...
Forum: C4 ZR-1 Technical Postings 12-29-2021
Replies: 25
Views: 3,375
Posted By rkreigh
Re: Weird stuttering issue

I was looking at adapting an ITB setup by making a custom base and using some ls3 parts adapted to the LT5 The kits are cheap enough, and we can whittle some prototype parts out of german ply, and...
Forum: C4 ZR-1 Technical Postings 12-28-2021
Replies: 25
Views: 3,375
Posted By rkreigh
Re: Weird stuttering issue

Hey Pete thanks!!


I tested and dynoed some of the fancy plugs and sure enough these did just as well if not better. Pete love to hear more about your engine and suspension tuning tricks on...
Forum: C4 ZR-1 General Postings 12-28-2021
Replies: 102
Views: 79,283
Posted By rkreigh
Re: New Owners/National list of Z Shops

unfortunately folks are moving on and working on the new vettes to pay the bills. Unless super urgent I'd wait!! I bought my car from Larry Merow rest his soul and vette dr took very good care...
Forum: Mid-Atlantic Region 12-14-2021
Replies: 24
Views: 3,287
Posted By rkreigh
Re: Holiday WAZOO Get To Gether

sounds like fun!! I'm in.
Forum: C4 ZR-1 Technical Postings 11-10-2021
Replies: 6
Views: 932
Posted By rkreigh
Re: Blowing Smoke After Idling - Otherwise Known as ?What Do I Order From Jerry??

until you diagnose the problem I sure wouldn't order parts. If you do a plenum pull to investigate it's worth getting new gaskets even though sometimes the old ones can be reused.

lots of...
Forum: C4 ZR-1 General Postings 11-10-2021
Replies: 11
Views: 1,563
Posted By rkreigh
Re: New LT5s

ahhhh the cam seizure engines

goes to show bullet proof not equal to I D 10 T proof

poor LT5s Thanks Jerry!!!
Forum: OFF TOPIC 11-09-2021
Replies: 1
Views: 592
Posted By rkreigh
Re: The king is dead. Long live the King.

this engine really does take NA to the next level
I'm amazed at the technology and the "ferrari like" intake tract, exh, and other features. Kicked everyone's butt with a GM product. Who would...
Forum: C4 ZR-1 General Postings 11-09-2021
Replies: 11
Views: 1,563
Posted By rkreigh
Re: New LT5s

a certain "corvette engine" surfaced in a storage bin for uber low $$
owner died and the storage company wanted it gone

after tear down to go stroker, it looked like a low mile new one...
Forum: C4 ZR-1 Technical Postings 11-09-2021
Replies: 3
Views: 767
Posted By rkreigh
Re: DRM coilovers

I have 400 front and 275 rear started with 425 front and 300 rear and it rode like a brick on the railroad tracks

350 up front will likely not be enough

definitely call DRM as they will go...
Forum: LS9 Mechanical 03-17-2021
Replies: 3
Views: 1,090
Posted By rkreigh
Re: Intercooler pump?

absolutely time to upgrade. Consider Kong porting the blower too as anything you can do to improve the efficiency and keep the intake charge cooler is a big help.


LS9 is such a sweet engine. ...
Forum: C6 ZR1s and ZR1 Parts For Sale/Wanted 03-17-2021
Replies: 0
Views: 1,793
Posted By rkreigh
owner bought 2013 anniversary wants another

good friend of mine bought a very nice 2013 Commemorative ZR-1 and likes the car so much he wants another matching one for the Ms.


I've found a few which is crazy, as they only made 138 or so of...
Forum: C4 ZR-1 Technical Postings 03-09-2021
Replies: 29
Views: 3,605
Posted By rkreigh
Re: Cam Position Sensor Removal

with the temp swings and oil batch jb weld might not last very long.


You would have to plastic weld that sensor case and it's that crappy hard plastic gm uses that is prone to cracking.


put...
Showing results 1 to 25 of 500

 
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