Konmo's 1990 Turbo VVT Swap
#41
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I had been having issues with it overheating even while on the freeway since I now had a big intercooler infront of my radiator. It covered the entire front opening of the bumper. The temps were getting to the Danger zone! Also I never figured what it was, but I think that the turbo heat kept killing the fan motors on the stock driver side fan. It happened with two different stock fans. So I bought two SPAL 30101522 12" fans and had my buddy make me a fan shroud which turned out pretty good.
the fans/shroud definitely helped with the overheating problems, but now I have a new problem. The fans pull too many amps (13 amps each if I remember correctly) since I wired them in series, when they both turn on, it will stall the car while i'm idling. It's fine when driving. And well this is where I currently am with the build. Just need to figure out that last annoying things, overall it's running pretty smoothly. It's pretty darn fast too. : 3gears:
the fans/shroud definitely helped with the overheating problems, but now I have a new problem. The fans pull too many amps (13 amps each if I remember correctly) since I wired them in series, when they both turn on, it will stall the car while i'm idling. It's fine when driving. And well this is where I currently am with the build. Just need to figure out that last annoying things, overall it's running pretty smoothly. It's pretty darn fast too. : 3gears:
#43
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I had been out of state for work in Yuma, Arizona for the past 5 months. But I'm back in California and anxious to continue with this build.
This is how it sat when I got back
I had gotten used to driving my stock 93 LE miata, so when I drove the turbo miata it felt like a night and day difference!
There's still plenty of things needed to finish this car. I'll keep posting my progress. I've been trying to take as much pics as I can, because who doesn't like looking at pictures.
This is how it sat when I got back
I had gotten used to driving my stock 93 LE miata, so when I drove the turbo miata it felt like a night and day difference!
There's still plenty of things needed to finish this car. I'll keep posting my progress. I've been trying to take as much pics as I can, because who doesn't like looking at pictures.
#45
Love all the photos. You may want to add some rubber flaps on any areas on the shroud where they'd fit. Shroud will be less restrictive under operation at speed, but still shut for fan use.
SPAL 30130012: Replacement Rubber Flap For 11" Dual Fan Shroud | JEGS
SPAL 30130012: Replacement Rubber Flap For 11" Dual Fan Shroud | JEGS
#46
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Love all the photos. You may want to add some rubber flaps on any areas on the shroud where they'd fit. Shroud will be less restrictive under operation at speed, but still shut for fan use.
SPAL 30130012: Replacement Rubber Flap For 11" Dual Fan Shroud JEGS
SPAL 30130012: Replacement Rubber Flap For 11" Dual Fan Shroud JEGS
I already have two of those rubber flaps, I just haven't had a chance to install them. I'll be installing them just like the Flyin' Miata fan shroud.
#47
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While I was out of state, I made a few purchases that were being held for me until I got back to California.
I got a set of RS Active Type 2 headlights
I also bought a broken US Racing Sports Type 2 bumper that I plan on getting repaired. Not sure I want to try repairing it myself.
These parts will eventually be installed. I have a few other things I need to finish first.
I got a set of RS Active Type 2 headlights
I also bought a broken US Racing Sports Type 2 bumper that I plan on getting repaired. Not sure I want to try repairing it myself.
These parts will eventually be installed. I have a few other things I need to finish first.
#48
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I've had a spare USDM 1.8 VVT engine for almost two years and it was finally time to start building it. This is how it sat dormant waiting for me to give it some attention.
Started disassembling the engine
The engine was actually pretty clean inside and you could still see the crosshatch lines in the cylinder bores.
Now I just need to drop these off at the machine shop
Started disassembling the engine
The engine was actually pretty clean inside and you could still see the crosshatch lines in the cylinder bores.
Now I just need to drop these off at the machine shop
#50
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This is what I'll be installing into this engine.
- Manley H-beam rods,
- Supertech 8.6 CR 84mm pistons w/ Wiseco rings,
- ARP main and head studs,
- ACL main and rod bearings,
- Boundary Engineering street/strip oil pump,
- Supertech +1mm oversized intake and exhaust valves,
- Supertech double valve spring kit,
- MMD SUB lifters,
- ID1000 injectors,
- Skunk2 64mm throttle body,
- squaretop intake manifold,
- SuperMiata harmonic damper w/ 36-2 T trigger wheel, and all new mazda seals and gaskets.
Last edited by konmo; 04-27-2017 at 04:33 PM.
#54
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I can get you a link to a bigger turbo once the built motor goes in if you want it. Then you can turn up the boost some more. Glad you are enjoying the setup so far. Let me know when you want to boost the LE.
#56
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Got my block and cylinder head back from the machine shop yesterday. I have been reading about leaking Supertech valve stem seals, and I don't want to take that chance and have mine leak once the engine is put together. I will be swapping them out for the valve seals that 949 Racing sells. Apparently they come from the same supplier as FelPro.
#57
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Thanks! More to come. The built engine and some more goodies are still waiting to be installed. I will continue to post my progress. Stay tuned!
#59
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My exhaust housing is not ported yet, it's on my to do list though. I saw some examples of the porting on your MKturbo thread.That would help with boost creep right? I also noticed that I can still push about 1-4 psi of boost with the waste gate wired open. Should I be able to build that much boost with the flap open and if not I'm guessing porting the waste gate hole would remedy this?
#60
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My exhaust housing is not ported yet, it's on my to do list though. I saw some examples of the porting on your MKturbo thread.That would help with boost creep right? I also noticed that I can still push about 1-4 psi of boost with the waste gate wired open. Should I be able to build that much boost with the flap open and if not I'm guessing porting the waste gate hole would remedy this?
I would probably max out the turbo you have now, then upgrade later. I mostly say this to save you $200 right now.