Finished Z31 ECU swap... but now problem...
03-25-2007, 07:28 PM
#101
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.
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.
03-25-2007, 07:30 PM
#102
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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.
03-25-2007, 07:35 PM
#103
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Originally Posted by snwbrderphat540
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.
03-25-2007, 07:36 PM
#104
Originally Posted by snwbrderphat540
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
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.
03-25-2007, 08:09 PM
#106
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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...
04-04-2007, 06:31 PM
#107
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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?
04-04-2007, 09:12 PM
#108
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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...
04-05-2007, 03:30 PM
#111
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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
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
Last edited by y2daniel1981; 04-05-2007 at 04:11 PM.
04-06-2007, 12:07 AM
#115
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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.
04-06-2007, 04:39 PM
#118
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Originally Posted by xtreme 2
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...
04-07-2007, 05:31 PM
#123
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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
04-07-2007, 10:24 PM
#124
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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...
04-07-2007, 11:04 PM
#125
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
http://notf.com/nissan.html
A turbocharged model (L28ET engine rated at 180 hp) was introduced in 1981. In the US market it was initially available with a 3-speed automatic transmission. In 1982 and 1983, the 280ZX Turbo was also available with a Borg-Warner T-5 5-speed manual transmission (this was the first Nissan which used a non-Japanese transmission; the T-5 was also used in the GM F-bodies and Ford Mustang).
