Hello guys, I am a new member and I just purchased my 1992 ZR1, which is awesome to me. My dad had them when I was growing up and that was the first car I ever drove. I have had LT1 c4 and getting things done on that was easy, but not sure where to start on the lt5. I would like to get some porting done, but who is best to do that? Gonna need a chip also, best place to look? thanks guys lots of great info here wish I would have joined up years ago. thanks dan

 

your best forum would be the ZRI registry

 

www.zr1.net go there, sign up and welcome.

there's only a few people to port these cars, one is Marc Haibeck in chicago, he also does tunes...really good ones. have one in my car, love it.

there's also a few guys in the chicago area who do it too, they'll be on the registry forum.

Corey Henderson is in the San Antonio area

Aaron Scott at south georgia corvette does it also.


none of them are cheap

 

Hi Dan, and welcome to the Forum. Congrats on getting the "King of the Hill". Just go to Forums, C4 section, ZR1 Corvettes, and there will be some guys there who can help you out.

 

Not to hijack but I am in my second week of ownership of a ZR-1, all I can say is WOW.

 

Dan

Where do you live? If I were you wait a few weeks or months before you start upgrading. Get to know the community, vendors and the car in general

Post up here. http://www.zr1.net/forum/index.php

Join the club. www.zr1netregistry.com

Congrats on your ZR-1!!!!



David

 

Carl and Dan

Post up pictures!!!!!

Tell us about your Z's. What do you plan to do to them?



David

 

thanks guys, I live in central texas so san antonio is not to far. I do agree on getting use to the car first, as I am going to pick it up on friday, crazy that I put thousands of dollars into my 91 z28 building a
ls6 and t56 etc and I am sure that the Zr1 in stock trim is going to make a fool out of it. It really feels good to finally have one. owning a c4 zr1 has always been top of the list for me.

 

It's ZR-1

 

Corey Henderson is very good hes in Tx. Awesome with tuning


Have carbides made just for LT5 pieces send over here if you like quality work not a hack job. Not a fast turnaround but Ill guarantee results
port4hp@live.com

 

ssssssssoooooooooooo sorry ZR-1

 

So what is a port job cost, I saw one shop for intake and upper plenum 4000.00, jeewizzzzzzz but thats probably the going rate. I found headers for 600.00 and not sure about the exaust, any suggestions? I just like to get a list going parts/cost, then convince myself that there is no other choice but to do it all. shouldnt be hard or cheap but hey it cost to run with royalty. thanks guys for the input so far

1992, 50,000 bone stock, I think

 

All you can say is Wow, not jeewizzzzzzz?

Congrats to both of you.

 

hey Jon, I grew up in rock springs wyoming, my dad used to buy his
ZR-1's from GUS Paulos chevrolet, man I loved that showroom. What do you guys think about supercharged LT5's I see the dyno video's but no runs. Looks like they make great numbers .

 

Congrats on your new car. Go to the registry and sign up....

 

Congratz on the Z! The fun is just beginning!

The stock LT5 is very under developed, and will produce huge gobs of added power with relatively simple porting.

And, you don't have to do everything at once either. You can do it in steps, as budget allows from stock 375-405 hp to nearly 700 and still have near stock idle and can be a DD too!

Porting the plenum and the IHs can be a DIY project. Or, for about $2k you can have it done. With trasition porting into the top of the heads, a chip, and headers and free flowing exhaust, 400 RWHP is in reach!

Add head porting and a set of intake cams that have been strategically timed for performance, the TB opened up to 63mm, another tune and you could be looking at 450 AT THE WHEELS and still have a car that idles like a stocker - from a stock bottom 350!!

And, theres a specialist that build TT LT5s for some rediculous power, and some that stroke and sleeve for a 10.x second N/A 441 cubic inch monster...Not bad from a 350 block, huh?

The Registry has a number of specialists that do various mods, have parts, do porting...a fantastic organization and group support.

Join the Registry and contact Marc Haibeck, Pete, Corry or Aron - all do premier LT5 work. From mild to wild, it can be done in steps or all at once. The more you have done at once, the less expensive over all (less labor to remove and install the motor, or modify chips for incremental HP changes, etc.

Stock (open deck) LT5 block



Open deck 441 LT5 block



Closed deck 427 LT5 block




My suggestion would be to get used to what you have. In the mean time, learn all you can about the options before jumping in. You're in for a completely different driving experience!

P.