Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
07-18-2013
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Replies: 26
Views: 6,554
Re: ZR-1 PARTS
John,
I will take the thunder poster and geneva intro. I sent you a PM
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Forum: OFF TOPIC
01-11-2013
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Replies: 18,060
Views: 1,064,247
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Forum: C4 ZR-1 General Postings
11-20-2012
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Replies: 27
Views: 3,023
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Forum: Northwest Region
03-01-2012
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Replies: 6
Views: 2,370
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
06-05-2011
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Replies: 28
Views: 3,230
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
05-23-2011
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Replies: 6
Views: 724
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
05-23-2011
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Replies: 5
Views: 1,252
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Forum: C4 ZR-1 General Postings
02-04-2011
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Replies: 6
Views: 953
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Forum: C4 ZR-1 General Postings
07-04-2010
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Replies: 3
Views: 699
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Forum: C4 ZR-1 General Postings
07-04-2010
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Replies: 3
Views: 699
Re: Replacement Engine?
Rich,
That is the build date stamp from MC. Look on the passenger side on the bell housing.
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Forum: C4 ZR-1 General Postings
06-28-2010
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Replies: 4
Views: 898
Re: Cable and Diagnostic Software for a Laptop
I have a 90 also. I?m new to the Scan/tune thing and I?ve been looking thru old posts. Seems there are a lot of guys asking questions but not a lot of answers.
I have been reading a little on other...
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Forum: C4 ZR-1 General Postings
06-27-2010
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Replies: 4
Views: 898
Cable and Diagnostic Software for a Laptop
FWIW
Here is where you can get the cable for interfacing laptop to car. it comes with some free software. $59.95.
I ordered one today and I have not yet received. So I don't know if it works....
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Forum: C4 ZR-1 General Postings
06-26-2010
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Replies: 9
Views: 4,180
Re: LT-5 Cutout
http://www.bobfreeman.co.uk/Content/gallery.asp
here is the link..its picture t-16 and M-49 a picture of are ZF trans..
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Forum: C4 ZR-1 General Postings
06-25-2010
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Replies: 9
Views: 4,180
Re: LT-5 Cutout
I found a LT5 Cutout picture i have not seen before. It is by Bob Freeman and was in 1989 Corvette Quarterly (summer issue). Does anyone have one of these prints?
I found this picture online but...
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Forum: C4 ZR-1 General Postings
06-19-2010
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Replies: 30
Views: 3,744
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Forum: C4 ZR-1 General Postings
06-19-2010
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Replies: 30
Views: 3,744
Re: Stage 1 Porting
No, I have just been cutting DRY.:redface: It's is a bad habit from work. I work in a clean room environment and we can't use oils. I just by bits by the gross.
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Forum: C4 ZR-1 General Postings
06-19-2010
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Replies: 30
Views: 3,744
Re: Stage 1 Porting
Yes, Aluminum is very soft and gummy. I use a piece of steel to clean the bits when they get gummed up.
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Forum: C4 ZR-1 Technical Postings
06-19-2010
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Replies: 31
Views: 8,140
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Forum: C4 ZR-1 Technical Postings
06-19-2010
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Replies: 31
Views: 8,140
Re: Porting a stock LT5
Primary: 35.5MM at the Plenum tapered to 34.5 at the head.
I Port matched at the head and I used a break Cylinder Hone to taper the top of the head. Only about 1.5 inch. (see picture I will...
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Forum: C4 ZR-1 General Postings
06-19-2010
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Replies: 30
Views: 3,744
Re: Stage 1 Porting
[QUOTE] "Going pretty fast, I did 5 IH hole down to the Inj boss in about 2hrs,"
Lee will you post a picture of the tools and bits you use? I like to see what you found works best.
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Forum: C4 ZR-1 General Postings
06-19-2010
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Replies: 30
Views: 3,744
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Forum: C4 ZR-1 Technical Postings
06-19-2010
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Replies: 31
Views: 8,140
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Forum: C4 ZR-1 Technical Postings
06-19-2010
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Replies: 31
Views: 8,140
Re: Porting a stock LT5
I'm about done with my rookie intake porting job. Here are some before and after Pics.
Look how big the injector port is on a 1990.
BEFORE
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