|
10-16-2013
|
#1 |
|
Join Date: Oct 2013
Location: old lyme ct
Posts: 33
|
new owner 1990 zr1
Hi having cooling problem!! temp almost pinned 2/3 and fans are working but radiator is a mess.started pulling shroud out and going to continue today,somebody mentioned the (high press by pass valve) is this a concern and where is it.thanks for any help!!!
|
|
|
|
10-16-2013
|
#2 |
|
Join Date: Aug 2013
Location: ridgecrest ca
Posts: 103
|
Re: new owner 1990 zr1
try first pulling the radiator out and cleaning out all the cooling fins .our cars are hoovers picking up all sorts of things . that should solve your cooling issues.. you might also get on mark haibecks site for other cooling solutions .sorry don't know how to do the link thingy
|
|
|
|
|
10-16-2013
|
#3 |
  
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,624
|
Re: new owner 1990 zr1
if your rad is blocked that's going to hurt your temps, clean that and get an aftermarket chip. I suggest mark haibeck at www.zr1specialist.com. as for the by pass valve, over 5800 rpm the rad can't handle the flow of coolant so it bypasses the rad and goes back into the block causing temp to go up. Found this out the hard way, I was playing around in second gear one day, looked down and almost **** my pants. If you swap the rad for an aftermarket one you can get rid of this "feature"
__________________
It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
|
|
|
|
10-16-2013
|
#4 |
|
Join Date: Oct 2013
Location: old lyme ct
Posts: 33
|
Re: new owner 1990 zr1
Thanks guys started shroud and met up with the three on drivers side and realized my small ratched was not in tool box,thanks again cant wait to see this radiator.
|
|
|
|
|
10-16-2013
|
#5 | |
Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,141
|
Re: new owner 1990 zr1
Quote:
http://www.zr1specialist.com/HAT%20W...o/radiator.htm
__________________
2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough" |
|
|
|
|
|
10-16-2013
|
#6 |
 Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,562
|
Re: new owner 1990 zr1
BTW, at high revs, you don't stop flow through the radiator, you just run excess flow around it.
|
|
|
|
|
10-16-2013
|
#7 |
|
Join Date: Oct 2013
Location: old lyme ct
Posts: 33
|
Re: new owner 1990 zr1
Thanks cant wait to get home.
|
|
|
|
|
10-16-2013
|
#8 |
|
Join Date: Oct 2013
Location: old lyme ct
Posts: 33
|
Re: new owner 1990 zr1
HELP !!!!!! SHROUD LOOSE WHATS THE TRICK FOR GETTING IT OUT?
|
|
|
|
|
10-16-2013
|
#9 |
 Join Date: Apr 2013
Location: Eastern Missouri
Posts: 773
|
Re: new owner 1990 zr1
I had the same issue. Took it to Marc's for some other work and had him pull and clean radiator. It was nasty - even with 18k miles on the car. 1/3 of it was covered in oil from oil cooler lines that had leaked at one time - which attracted all kinds of dust, vegetation, and fuzzy junk. The rest wasn't as bad - but it still had a lot o junk in it. He used like 2 cans of brake clean just to get the oil out (so you know what to expect). If your car doesn't have a debris screen on it you can make one pretty easy. http://www.zr1.net/forum/showthread.php?t=20178
I also went with Marc's chip - and between the cleaning and the chip I went from running 200 on the road and 230+ in traffic - to about 180 on the road and 210 in traffic... The shroud takes some wiggling to get off there - I didn't do it but I watched Marc and it takes some careful wiggling and lifting... |
|
|
|
|
10-16-2013
|
#10 |
|
Join Date: Oct 2013
Location: old lyme ct
Posts: 33
|
Re: new owner 1990 zr1
Ill get it just looking for some tips haha!!thanks
|
|
|
|
 |
|
|
Linear Mode
