The MAF isn't tune-able, but you can install a potentiometer on the CTHS to adjust the a/f ratio. Just make sure you have an a/f gauge installed. You can also adjust the fuel pressure w/ the Aeromotive fpr.

Other than that, you do need an AFC to tune. The Z31 ecu has better fuel maps than the 280zxt ecu, and also works better w/ an AFC.

 

narrow band A/F guages are relativly a light show more than a tunning device, they will tell you if you are uber rich or uber lean, in between that, its almost a crap shoot, it starts to level out at WOT. but wtih a wide band you can get all the readings in number form not just a light in lean stoich or rich lol.

 

Well I knew this info, but thanks for enlightening all the people who don't know and happen to stumble upon this

 

That's pretty much the reason for having an a/f gauge. My Autometer narrow band has helped me trouble shoot & fix a lot of my probs. Everyone says "real tuners need a wideband" ... lol ... so you can see a number of richness rather than a color? As long as I'm running rich (but not too rich) at full throttle... it doesn't matter which I use.

 

it will if you go stand alone, which i think my tax dolla's might go towards, sorry for the thread switch there, ill go back to my own now.

 

I really don't think that going back to stock would do anything to help the cause. As I said, for some reason it is just running too rich at idle with the fuel pump turned on and I need to remedy this. Aside from that is it running perfectly fine...

 

ok well the jpipe was removed and we found that there was a massive rip in a vac line that went we think to the air regulator (remember, we removed the air regulator). Think this could have been the cause of our problems?

 

well technically, the "air regulator" is still there, it's just a piece of 5/8" hose now instead of a mechanical structure... all hoses and other parts have been rerouted to keep the vac intact... but yes when I took the JPipe off to install the intercooler I found that the hose connecting the JPipe to the regulator was ripped, so I am hoping that is causing the richening...

 

That would deffinately cause a prob under boost... and also make for a crappy idle.

 

And yes a crappy idle was somewhat part of the problem

 

update! I may be getting a series 1 240z in the next few days and thought about trying to swap this engine (after we get all the issues with it sorted out)into it since the 240z has a lighter and better body (i've checked out this 240z personally). How hard is this swap and what are the issues?

I've checked out these pages:
http://www.yadamnfool.com/turbo_z_co...t_to_s30_z.htm
http://forums.hybridz.org/showthread.php?t=103728

and was wondering about any other issues or any super problem areas not listed

 

The engines will swap perfectly. You will need to do some work to install & hook up the turbo EFI harness.

 

i wonder how much of a difference i'll feel between the 280zx and the 240z

 

About 400lbs of a difference. My '72 240Z weighs 2315 lbs. My '82 280ZX Turbo weighs 2750 lbs.

 

i just swapped motors into my 260z and made it a turbo motor so i can actually provide enlightenment on that issue if it comes to that. and i say do it. **** im 19 and an average of maybe 30 hours of labor i swapped motors made it a turbo motor and tehn wired it up all by myself in my garage. took 2 months of weekend working on and off. but w/e its pretty straight forward.

 

Yea as long as I can find a lift I should have the motor in in a day, the wiring is the only thing that will take a little time...

 

Ya get that boost leak fixed?

 

psh, wired mine in 5.7 hours started it the following morning due to no gas. lol. the wiring is an intimidating thought, but when you get down to it, its easy its simple, its just tedious cause I HATE SOLDERING!!!!!!

 

does anyone know if either the 240z or 280zx driveshaft will work with my swap? or will i have to do custom? anyone know if the rear dif or rear end from the 280zx will work?

 

and as just a reminder, i have an 82 turbo 5speed so it's not the borg-warner t5!

 

You swapped out the stock turbo tranny??????

 

if its not the borg warner T-5 the stock 240z driveshaft will fit.

 

well http://geocities.com/zgarage2001/ says that the borg-warner T5 only came in 83, so I'm guessing I dont have the T5 since I have an 82

 

yea as far as I know he has the regular tranny... so out of curiosity which tranny would be better to use, the 240z tranny or the 280zx tranny? I haven't seen the new shell in person yet, so I am trying to gather more info before I go see what I am getting myself into...

 

ALL 82-83 Turbo 5speeds were equiped w/ the BORG WARNER T5 transmission from the factory. If you don't have a T5 in your 82 turbo, someone swapped it out.

http://notf.com/nissan.html