The Definitive "VVT swap into 90-97 chassis" Megathread.
#181
Well I've done some math here (actually google ha!) and figured out mine is at 4 BAR while cruising, that's roughly 58 PSI. It's about the same that the previous engine did when cruising. Only when cold, the values are noticeably higher (slightly above 6 BAR).
There's also something else. I don't have VVT management still, and the engine is pulling quite fine! Is this to be expected, or does it have something to do with the fact that the pressure is high? Just wondering as the VVT runs on oil and may account for some pressure loss at cruising speeds with proper management.
Also another curiosity... Does the VVT stay normally opened (mucho overlap) or normally closed (almost no overlap) when there is no management installed, or if you were to pull the VVT solenoid plug?
There's also something else. I don't have VVT management still, and the engine is pulling quite fine! Is this to be expected, or does it have something to do with the fact that the pressure is high? Just wondering as the VVT runs on oil and may account for some pressure loss at cruising speeds with proper management.
Also another curiosity... Does the VVT stay normally opened (mucho overlap) or normally closed (almost no overlap) when there is no management installed, or if you were to pull the VVT solenoid plug?
#184
Interesting. Mine is generally at 20-25 psi at idle; 40-45 psi while cruising around; and always 40psi while at the track being horse beat.
I noticed a ~5psi drop across the board when going to synthetic oil after break-in.
All numbers are with 10w30 oil.
Bottom end clearances were all ~1.8 thousandths.
No issues in 3k miles with 3 track days.
I should also note that my oil pressure sensor has been relocated to the firewall. Not sure if that messes with my numbers, but it wouldn't surprise me.
I noticed a ~5psi drop across the board when going to synthetic oil after break-in.
All numbers are with 10w30 oil.
Bottom end clearances were all ~1.8 thousandths.
No issues in 3k miles with 3 track days.
I should also note that my oil pressure sensor has been relocated to the firewall. Not sure if that messes with my numbers, but it wouldn't surprise me.
#189
I did not add that plastic "sleeve" around the fuel pipes, now that I think of it. I passed them through under the throttle body, they're rubbing on the manifold there (probably not a good idea).
I also replaced the fuel hoses with brand new 7mm ones.
Should I add some sleeving at least?
Mandatory install shot:
I also replaced the fuel hoses with brand new 7mm ones.
Should I add some sleeving at least?
Mandatory install shot:
#192
I did not add that plastic "sleeve" around the fuel pipes, now that I think of it. I passed them through under the throttle body, they're rubbing on the manifold there (probably not a good idea).
I also replaced the fuel hoses with brand new 7mm ones.
Should I add some sleeving at least?
I also replaced the fuel hoses with brand new 7mm ones.
Should I add some sleeving at least?
#194
Hey guys!
So i'm just at the end of my vvt swap into EUDM 1.6 NA ( 90km ), and i managed to fry the 01 coils, don't really have an idea why...
Now i want to just use the original 1.6 coils..is there any trick on how to connect them, or just leave as it was factory and call it a day?
btw, car has sequential spark from the factory..or so they say
More or less everything is wired up as to this thread..
https://www.miataturbo.net/engine-pe...r-72134/page1/
exept the coils as i somehow forgot to check the last page, where i should include the x15 connector somehow.xD
Running on MS3
So i'm just at the end of my vvt swap into EUDM 1.6 NA ( 90km ), and i managed to fry the 01 coils, don't really have an idea why...
Now i want to just use the original 1.6 coils..is there any trick on how to connect them, or just leave as it was factory and call it a day?
btw, car has sequential spark from the factory..or so they say
More or less everything is wired up as to this thread..
https://www.miataturbo.net/engine-pe...r-72134/page1/
exept the coils as i somehow forgot to check the last page, where i should include the x15 connector somehow.xD
Running on MS3
Last edited by kris5150; 08-18-2015 at 02:15 PM.
#195
No NAs or NBs ever had sequential ignition. They're all wasted spark.
Just mounting the coils as they were on the original engine will do. Mind, you'll have to modify the cable boots or the cam cover for them to fit.
Also, did you try to fit the 01+ coils with the ignitor in place? That would cause them to burn
Just mounting the coils as they were on the original engine will do. Mind, you'll have to modify the cable boots or the cam cover for them to fit.
Also, did you try to fit the 01+ coils with the ignitor in place? That would cause them to burn
#196
Sorry i meant sequential injection, but dont think that would make a difference
Great thats what i wanted to hear. What do you mean by modifying? cables fit with no problem!?
Nope, i deleted the ignitor and ran new wires to the coils, but forgot to wire them to the condenser at the back of the head.
I did it like this...
but sould do it like this i guess...
btw, is the case/metal housing of the 1.6 coil ground for itself, or can it be mouted to non chasies/engine bracket?
Great thats what i wanted to hear. What do you mean by modifying? cables fit with no problem!?
Nope, i deleted the ignitor and ran new wires to the coils, but forgot to wire them to the condenser at the back of the head.
I did it like this...
but sould do it like this i guess...
btw, is the case/metal housing of the 1.6 coil ground for itself, or can it be mouted to non chasies/engine bracket?