Forum: C4 ZR-1 Technical Postings
01-16-2019
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Replies: 42
Views: 9,298
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Forum: C4 ZR-1 Technical Postings
01-11-2019
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Replies: 11
Views: 2,521
Re: CA Exhaust Law 2019
my sheriffs deputy friend told me initially these tickets will be a CHP enforcement, but could also be any dept. depending on who gets the state grant for OT for special enforcement.
Of course...
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Forum: C4 ZR-1 Technical Postings
09-27-2018
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Replies: 21
Views: 5,577
Re: New Owner of 90 in Cali! - Failed Smog :(
new o2 sensors will help the nox. Also, it would be almost rare to find a zr-1 that hasn't been 'chipped' so the extra ign timing programmed into that might elevate nox as well.
well worn...
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Forum: C4 ZR-1 Technical Postings
09-27-2018
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Replies: 28
Views: 3,531
Re: Hesitation than cleared itself
I had encountered poor driveability when the weather changed and I was still on winter blend calif gas when we had an 80 degree warm spell in February. Run through a tank before you spend any money
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Forum: C4 ZR-1 General Postings
08-04-2018
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Replies: 23
Views: 4,169
Re: Barney F/S again
Good thing it is far away. I just sold a car and have money burning a hole in my pocket.
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Forum: C4 ZR-1 Technical Postings
07-08-2018
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Replies: 4
Views: 1,205
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Forum: C4 ZR-1 General Postings
06-28-2018
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Replies: 6
Views: 840
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Forum: C4 ZR-1 Technical Postings
05-09-2018
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Replies: 6
Views: 3,954
Re: Brake fluid vs. Power Steering fluid?
Saginaw steering pumps are pretty durable outside of particulate contamination. Brake fluid is more like a glycerine...I wonder if it dissolved in solution or if it is more like water and oil.
If...
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Forum: C4 ZR-1 General Postings
04-10-2018
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Replies: 19
Views: 2,783
Re: Went to the drag strip
Former owner of #1673...The Watson headers with the longer primaries may have cut faster trap speeds than the OBX mid length units you are running now....I forgot to bring that up when we were...
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Forum: C4 ZR-1 Technical Postings
03-08-2018
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Replies: 13
Views: 3,226
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Forum: C4 ZR-1 General Postings
03-08-2018
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Replies: 15
Views: 2,107
Re: 1 3/4" vs. 2" Header Size
I had 2" Watsons and there was no point in the power curve that was less than with stock manifolds. Part throttle was better too. The LT5 is so under manifolded, it kind of defies convention (at...
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Forum: C4 ZR-1 Technical Postings
02-15-2018
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Replies: 65
Views: 8,881
Re: High searching Idle
These throttle bodies and the pcv vent bypass too much air an it is hard to get a positive IAC number. I was able to get a value of 10-20 on the iac counts after I restricted the diameter of the pcv...
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Forum: C4 ZR-1 Technical Postings
02-10-2018
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Replies: 65
Views: 8,881
Re: High searching Idle
well, since you have eliminated the outside hose connections, it sure sounds like the hard plastic curly-q under plenum hose has popped off. It goes to the gas tank purge solenoid. The leak is big...
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Forum: C4 ZR-1 General Postings
01-30-2018
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Replies: 5
Views: 1,203
Re: Shipping a Targa Top
Lately I have noticed that UPS and fedex are out of their freakin' minds with their current rates...maybe you were getting priced at a privately owned 'UPS store' rather than getting a quote from a...
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Forum: C4 ZR-1 General Postings
01-29-2018
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Replies: 5
Views: 1,203
Re: Shipping a Targa Top
Ok- here's the way I have done it...buy an empty targa top box from Melrose T-top and pay whatever they ask for the empty box plus over-size dimensional penalties UPS gets you for. It will be...
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Forum: C4 ZR-1 Technical Postings
01-29-2018
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Replies: 22
Views: 3,110
Re: Z06 Cats
I used 3" split pipe clamp on connections from the SW performance connect kit. The LS7 cats were slightly angled inboard from full length Watson headers to fit the tunnel. They would fit better on...
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Forum: C4 ZR-1 Technical Postings
10-28-2017
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Replies: 7
Views: 3,336
Re: Half Shaft U-joints
PTO Sales/Truck Pro sells Spicer stuff. Common parts like u-joints should be in stock. I was able to get the regular non-coated (but still brand name) Spicers for $19ea...that was a few years back,...
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Forum: C4 ZR-1 General Postings
10-21-2017
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Replies: 14
Views: 2,235
Re: Sometimes I wonder...
A stock coyote car will beat a zr-1 up to about 100 mph. I used to have both and I lost to my own mustang with my friend driving it like he stole it. Once you put headers on an LT5... well, then I...
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Forum: C4 ZR-1 General Postings
10-08-2017
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Replies: 42
Views: 4,536
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Forum: C4 ZR-1 General Postings
10-05-2017
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Replies: 42
Views: 4,536
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Forum: C4 ZR-1 Technical Postings
08-29-2017
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Replies: 42
Views: 12,237
Re: So I had a bit of blowby...
As far as the trans leak goes- Mine leaked out the tail-housing, but it wasn't the lip seal...it was the metal plug in the end of the driveshaft yoke that was leaking.
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Forum: C4 ZR-1 Technical Postings
08-18-2017
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Replies: 20
Views: 5,341
Re: IAC question...
I never posted much on the subject, but after fixing all the stuff under the plenum, I assumed that i had some throttle plate leakage that wasn't worth fixing. what I did was include a restricted...
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Forum: C4 ZR-1 Technical Postings
06-26-2017
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Replies: 25
Views: 5,892
Re: Sooty #7
Poor man's leakdown test: What is the compression on one crank compared to other cylinders?
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Forum: C4 ZR-1 Technical Postings
06-17-2017
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Replies: 4
Views: 1,780
Re: Right side O2 connector disconnect?
take the k-member off...even after that, you will need to pry the lock tab with a long flat blade screwdriver while pulling on the other harness. It will pop out. Putting it back on is a little...
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Forum: C4 ZR-1 Technical Postings
03-27-2017
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Replies: 20
Views: 7,177
Re: ZF fluid change time!
I blended a couple quarts of the z-rod Amsoil with the jug of mobil1 from walmart. The z-rod is a little concentrated on the zddp additive-way more than ohc tappets need. You can duplicate 1990's...
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