Anyone running a P90A head? Need Help!

[hls30.com]

Here you go-even one in Oregon for $150!

These were listed in car-parts.com searching

1983 Nissan/Datsun 280ZX head w/turbo

$250 Scarboro Auto Parts USA-ME(Scarboro) Request_Quote 1-800-427-0632

$250 Cocoa Auto Salvage USA-FL(Cocoa) E-mail 1-800-347-0928

$200 Brooks Auto Sales, Inc. - PRP, PRP-MA USA-VA(Oilville) 1-800-552-6783 R

$200 Veldman's Auto Parts USA-IN(South-Bend) E-mail 1-800-888-3821

$200 Clifton Salvage, Inc. USA-IL(Mount-Vernon) E-mail 1-800-331-4231

$200 Madison Heights Auto Parts USA-VA(Madison-Heights) E-mail 1-888-528-8826

$200 Penney's Auto USA-MA(Tewksbury) Request_Quote 1-800-427-2381

$175 Glenwood Foreign Auto Parts USA-OR(Goshen) Request_Quote 1-800-437-1708 $150 Brooks Auto Sales, Inc. - PRP, PRP-MA USA-VA(Oilville) 1-800-552-6783

$150 B and K Auto Salvage USA-OR(La-Grande) E-mail 1-800-233-9640

$125 Wagner's Auto Salvage Inc. USA-NC(Durham) Request_Quote 1-919-544-1729 $125 Wagner's Auto Salvage Inc. USA-NC(Durham) Request_Quote 1-919-544-1729 $125 Weber's Auto Parts USA-WA(Yakima) E-mail 1-800-876-4711

$125 A-1 Auto Parts USA-MN(St.-P1-866-488-2533 or 1-651-488-2533

Be sure to verify that is truely a P90A, complete, and warranted for atleast 30 days-and exactly how the waranty is handled. If it is shot, you are only out shipping.

Will

[ZSaint]

I will call tomorrow. Thanks for the info!

[ZSaint]

Think about all of the parts you can find on this web page. Where was this when I was racing? Ain't computers neat!

[ZSaint]

Drove 75 miles to pick up the P90A head. Got it back to the shop and cleaned it up. (Covered with cosmolene) I removed the camshaft and it had been "buffed" with an emory wheel to remove the rust. They ruined the cam. Now I need another cam. I guess I just have no luck other then bad luck!

[hls30.com]

Call them and rais hell-let them get you one to replace that one-and ship it to you-their fault it is like it is...If you really get stuck, we can work something out...

Will

[ZSaint]

I found another P90A head. It is coming from Florida. I have found a camgrinder who has a profile for a hydraulic camshaft. It has .480 lift and a long duration, 294`. He recommended putting the stock ZXT cam in the head to see if it solves my problem. He knew when I put weaker valve springs that it would make the situation worse. It did. It appears that the lifters are constantly trying to get "0" clearance and pump up the "solid" clearance (.012-.018) on each revolution. They quickly pump up and hold the valve open when it should be closed. Solid cams have a "V" base and hydraulic cams have a perfectly round "U" base. With 300# springs they held the valves closed a bit longer before pumping up. 210# springs are overcome quicker. I believe this is what is happening. My understanding of cams is a bit more complete now after this fiasco. I will let you know if this "theory" works when the new head/cam arrives from FL.

[ZSaint]

I finally installed a stock '83 ZXT camshaft and rockers and the car runs great. I just took it out and put 50 miles on it. It runs great, has good oil presssure and does not overheat. I have found a camgrinder that will grind me a performance cam for the turbo head. He has the spec and masters for a .480 lift - 294` durantion hydraulic camshaft. (What about these numbers? Will this cam be driveable on the street?) It is expensive... $350! Once I get it running, I'll give you guys feedback on the camshaft. Right now, I'm happy with my 3.0 with a stock camshaft. It is running great. Thanks for all of your support during this expedition. It has been a long haul. One more step and the egine will finally be done and hopefully performing well.

[sideshowbob]

Good to hear it! Now if mine will just co-operate.....

[ZSaint]

I took the "scarred" camshaft and head back to the yard today. A nice way to start the week, 150 mile round trip! They smiled and gave me my money back. Why do these guys try to sell this junk? You know this camshaft would go flat in about a month and they would say, Gosh, what ever happened to that cam? You must not have had sufficient oil for it, dude.