kvansic162

If I put a p90 head on N47 block using either a 1mm or 2mm head gasket, do you have to shim the towers? I do not plan on shaving the head. I want low compression for a turbo.Also any other tips on swapping the n47 head with the P90 head would be great. Thanks...

I have swaped to the R&P system. I used a 83 cross member and rack. I had to grind the steering shaft at the joints a little bit because it would bind. The car has a lot of under-steer.Droped almost 100 pounds geeting rid of the gearbox and links.The rack is a semi-manual rack. I am running it with out power steering. A little hard to turn at slower speeds but on the highway it is excellent. I just purchased a full manual rack and pinion ,with cross member and shaft( which is the longest shaft) for the early 79ZX. I plan on installing it later this year in an effort to get rid of the under-steer. I will probably install a camber kit and a caster kit to also help dure the under-steer condition. I am a manager of a Firestone store so I have an alignment rack at my dispossal.

Does it have 1 ear on the tail housing? The 80 tranny has a 0.773 5th gear. That's 130 more rpm's than the 81-83 tranny at 80mph on my app. When you have a 4:11 rear it's a big difference. What kind of price are you asking and what is the condition and milage on the unit?

I'm looking for a transmission from the years 81-83 N/A 280zx coupe . It must be from the years list above. I have a 4:11 gear in my Z, the tranny from these years has a 0.745 5th gear. My 77 5 speed has a 0.864 5th gear. 550 rpm difference at 80 mph. The 81-83 trans only has 1 ear where the 77-79 has 2 ears on housing. Thanks... Kirk

Want some compression numbers? Try 250 per cylinder. I have a 77 motor using the comp pistons and a stage 2 cam and a 2mm gasket. I about craped myself when I read those numbers.. Anyways I put a nissmo cam sprocket on and retarted the cam 6 degrees. Brought the compression down to 225 per cylinder. I run hi test and methanol injection....mega squirt....runs awsome.

I got rid of my powersteering rack and opted for a full manual. Frees up space , weight , and horse power. Got use a little muscle in parking lots , but I like it.

No, you are correct. The older Z cars have lots of modified parts made for them. The early ZX cars....not much offered. I always have to make my own Mods. But it is well worth it.

I'm glad to see this thread. I was pondering the thought of an RB motor so I could get 300 whp, but seeing the set ups with the L28 turbo with dyno figures has changed my mind.

is jim cook racing still in business?

I went to a metal shop and an hour later I had 2, 30 inch long frame rails with 1 inch edges to tac weld to the floor boards. Only cost me 70.00. Perfect.

Sometimes owning a s130 can suck because there is less aftermarket items made . Bulldog doesn't make frame rails to fit. Where can I find u channel or tube to make my own frame or over lay the existing one for my ZX. Kirk

Snow performance meth injection.....check it out.

Has any one been brave enough to try this V-band turbo kit on e-bay yet? Being Ebay, as usual , it seems too good to be good.

I need one, Fun to have an older car....sucks to get modified parts.

Thanks big Phil.

wouldn't I want to use a 77 head gasket to block the holes . Isn't the cooling holes on the n42 block different than the p90 head?

I want to make sure a p90 head will work on my 77 (used to have n47 head) block. I noticed 2 water jackets will be blocked by the head gasket. Will this cause a problem? Do I need to do anything special where those holes are?

Well that is good info. I hope to find a P90 head and go with it. I would be very happy with 300 rwhp. Thanks

I forgot to ask if the stainless valves in my N47 head will work in the P90 head?

That sounds like a good plan . I also have snowperformance water/meth injection kit on the car. Every little bit will help. Thanks

I plan on putting a turbo on my 280zx. I have nissan flat top comp. pistons in the block. If I switch from a N47 head to a P90, is a .796 drop in compression ratio worth the swap. Also cam I use the cam from the N47 on the P90 head?

I have searched and search but can't find a direct answer , is a P90 head ok to put on a 77 block? I also want to know if the stage 2 MA camshaft I am currently using on my N-47 head is ok to use on the p90 head. I want to turbo the motor but don't want to risk the chance of the exaust liners breaking in to pieces and slaughtering the turbine, at least that is a concern I have read about. Thanks......

Can you put a P90 head on a 77 N/A block?

From what I understand the neo rb25 has 30 more hp tham the rb25 33. I also know the neo has more emissions. I guess the neo has a better head design?

I know I will have to modify alot.....I've been down that road before(megasquirt to name one). I've talked to Mckinney also. I'm just curious about the drivability and lonevity, more than the cost.