Z-Gad

2.95 R230 ... Yummy....!!

awesome Garrett!! I have been out of town for the last month or so, so I haven't had a chance to return your call. I guess you made good on whatever it was you were gonna ask me about... Anyway, when you run out of injector, I have a set of 550's that I'll cut you a deal on.

I plugged the pcv hole and just run a breather filter on the crank case vent and a breather filter on the valve cover as well. I have done that w/ all of my turbo motors thus far with no ill effects.

Yep, sounds like you may have blown an intercooler hose...or one may have popped off

I remember reading about this car in a magazine many years ago, but forget which one... Anyway, it is now up on Ebay... http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&category=98062&item=4564408367&sspagename=WDVW

$50 shipped and it's yours... PM me

I remedied the "loose crank pulley" problem with a slightly longer bolt from a bolt and thread shop on a previous motor....

I have always used copper spray on the metal head gaskets prior to install. I have never installed one dry, but that doesn't mean it cannot be done... You may end up having to pick up a can at the parts store. It is ~ $5.00 or so.

Just saw this over on Zcar.com... http://www.zcar.com/classifieds/index.php?method=showdetails&list=advertisement&rollid=24977&fromfromlist=advertisement_active&fromfrommethod=showhtmllist&

Should contact them and see about getting replacement P90/P79 valves... I am sure there is a market for them

Used TEC 2's can be had for $600-$800. That'll save a little dough...

I bought a set a few weeks ago. they fit the pre 1980 heads (N47, N42, E88, E31...) They are too long for the P90 or P79.

Sorry, I don't have access to a scanner to post the graph, but will do my best to describe what you have requested. Regarding the torque plots, the ISKY cam's curve is very linear and above the the stock cam until ~2900 rpms. There, the stock cam's curve rises just above the curve of the ISKY until it kind of plateaus at 290 TQ or so at 3800, peaks to 302 at 4500 and torque starts dropping off at 4600. The ISKY cam's torque curve is nearly identical to the stock cam from 2900 rpm's to around 3800 rpms where it rises above the stock cam, plateaus ~4200 and starts dropping off around 5200 rpms. Regarding the numbers, the dyno operators said that their Mustang dynamometer, from trial and error, tends to read 5-15 percent below other dynos in the area. For me, it doesn't really matter. The numbers are what they are and were performed on the same dyno. That was what mattered to me. This experiment was done to see what difference changing only the cam would make with a larger frame turbo, making only minor air/fuel corrections to compensate for the new cam, and post results. I have not seen any data on solely a cam change, so I did it. I agree that there may be more horsepower to be made and the tune of the car is not optimum at this time. Perhaps the turbo is not perfect for a stock L28 and I am unable to take advantage of it. maybe the advantages of the larger turbo would shine above 20psi... Maybe a T3/T4 is better suited for the stock cam. I guess there are other questions and experiments to be run besides the one I just did... I would like to see someone do solely a cam change with a stock T-3 and see what would happen. Any takers?? Ok, enough thinking out loud for now...

Thanks for the props Juan, the check is in the mail !!

You can contact James through... http://www.speedshopthagard.com I purchased one for the 2JZGTE 240z and the quality is top notch.

Pyro - Thanks man, The 122.2 mph was w/ the former 3.1 stroker motor and T-66 I used to run set to 20 psi. I was making nearly 400 rwhp by 1/4 mile calculations, but did not dyno it in that form... Current daily driver setup will have to wait until August or so before it makes it to the track. Since it is my transportation and I have not had the best of luck with rear end parts, I choose not to put the sticky tires on it until after I have another mode of transportation.

I did not have to send a core. I spoke with him for a few minutes, told him what I was interested in, and he said that he would get on it. ~ 2.5 weeks later (suprisingly quick), the cam arrived at my door. I do not know whether it was a billet or regrind, though I suspect a regrind as it came to <$200 total, shipped from California to Orlando. As far as the a generic L28 turbo cam, you can contact http://www.webcamshafts.com/datsun-auto.html#1 I actually had placed an order through them with a little modification to their listed grind, and a week later was told that they could not give me the 114* lobe center I requested. They said that the most they could do was 112*, which was not what I wanted, so I cancelled my order w/ them and called Isky.

http://www.iskycams.com/ 323.770.0930 I spoke with Ron. He usually isn't in until after 1:30 pm Cali time. He was a great guy to deal with.

5" Autometer

I don't expect there would be much of a market for the adaptors for what it costs to make them. I just took a hydraulic lifter to the machine shop with a mechanical lifter boss and pivot and told them that I would like the O.D to be that of the Hydraulic lifter and the ID to be that of the pivot thread. I also wanted the ring for the 'Mickey Mouse' looking rocker arm spring keepers, and in 3 days I had a set.

lookin good Gabe...but your gauge only goes to 20 lbs of boost!@!

DemonZ - lifter adaptors ran me ~$200. They sit up a little higher than the stock mechanical lifter bosses in the hydro head, so believe it or not, stock lash caps allowed excellent rocker arm geometry. I used the nuts/pivots from the mechanical head in the adaptors. Initial investment was a bit high, but I have a few hydro heads that I can play with and move the adaptors head to head. BTW, this is the 3rd head that the adaptors have been in already . I figure that the hydraulic heads will be more abundant in the coming years as many have scarfed up the non-hydraulic heads.

Regarding idle quality, vacuum went from 21" to 14" of vacuum. Idle has a little more rumble to it, but engine revs very smooth and cruises as though it had a stock cam. It is super smooth in acceleration and drives like a stock car until you floor it and reach around 3700 rpms. According to the graph, hp vs rpm is identical until around 4000 rpm's (right after I have full boost with this turbo). After 4000, the stock cam rises more gradually while the new ISKY continues on a steady climb. As far as the "stockness" of the car, the only thing really stock is the long block. It has all stock internals and stock headgasket. The head has no portwork. It is a P90A which I converted to mechanical lifters by having a machine shop make me some inserts. The motor has unknown miles as it came out of a rolled 280zx turbo parts car. The exhaust manifold has a T-4 flange welded to it as well as an external wastegate flange, but no portwork done to it either. My intake manifold is an N47 w/ welded up EGR, ported runners and ported for the 60mm throttlebody. Intake piping is all 2.5" from turbo to intercooler and intercooler to throttlebody. I would not expect similar results by adding a cam to a stock turbo car though. I believe this cam is well matched to the parts currently on the car.

I was running the stock turbo cam before. This cam is one I requested to have ground for me.. kind of an experiment... Cam is an ISKY Intake 490 lift, 276 duration Exhaust 480 lift, 266 duration 114* lobe center 44* overlap

Well, just returned from Central Florida turbo with my cam results. The previously posted numbers were from a 4th gear pull. The 4th gear pull takes a longer time, consequently it is a little harder on the car, so we decided to do third gear pulls instead. So we can "compare apples to apples", the best third gear pull I had made was... 5/27/05 262.1 whp @ 5000 RPM 302.2 TQ @4500 RPM After finally getting the cam installed, I had to change idle and cruise fuel values as they were all over the place. I really did not change the high rpm fuel values as the car ran so rich last time. the ONLY change I made was the cam. I did not change valve springs or anything (I have valve springs to install, but again, I wanted to compare apples to apples). Anyway, here are the results... 6/10/05 304.0 whp @ 5500 320.3 TQ @4500 Both runs were on pump gas and 17 psi. Again, the cam was the only change made besides some air fuel corrections. The AFR's were between 11.5:1 and 12:1 except for around 6500 where they dip into the 10.8:1 arena. Overall, I am pleased with the results, gaining nearly 42 hp for a $200 investment. Next, I will install the valve springs, the T-72 and spin it up to 7500 or so and see what happens... OK, now back to wiring in the harness in the 2JZ 240Z ...