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What things does not come with a Greddy Turbo Kit?
I know that the Greddy turbo kit does not come with intercooler, downpipes, piggy back, and blow-off valve. Please correct me if I am wrong. What other things would I be needing for a complete turbo kit.
My car is a 1991 Miata NA. I need to know what other mods I would need to have a complete, fast, raceable, streetcar with good performance and sound.
The complete Greddy kit comes with a few of these parts.
"turbocharger, downpipe adapter, piping, hardware and heat-shields, in most kits, they even include pre-tuned fuel enrichment."
However, for a few dollars more, Flying Miata has a more complete set up. By the time you get the missing parts (intercooler, piping and ECM add ons the extra dollars are well spent).
Then there is always the Jackson Racing Super Charger.
While I have been working on a turbo set up of my own, I think an off the shelf unit would had been wisest.
For now I have added OBX headers, Mega Flow cat and a 10 lb flywheel on my 90 models.
I have been into two Miata engines (one had the dreaded key way failure) and I have seen that investing in an inspected crankshaft is good to great investment. One of the crankshafts had a forging burst in it. That is one out of three, not good odds.
A factory blue printing can add 20 hp sometimes. But if you are going to turbo charge it, do not have the deck shaved. The gain in horse power is amost directly related to engine balancing. So between a lightened fly wheel and a custom engine build you can easily be in the 150 HP range for effective purposes. Which with a mild boost (7psi) you should be in the 200 HP range. Which borders on too much for many drivers to handle and corner effectively with. Not that I would not like to try it. The reason I mention this is that you can eat up a lot of tires learning. Blown tires can put you on your top, and that is something that is just not there on a Miata.
Also once you get above 150 HP the transmission weaknesses show up real fast and so does the weaknesses of the differentual. So plan on upgrades there. One rear end swap is to a Ford 8.8 one out of a T-bird that had an independent rear end. On the Transmission there is a lot of debate. Some racers modify the internals out of a RX7 turbo to fit the Miata case. But then I also read of RX7 turbo owners making modifications to fit the Miata transmission parts into the RX7 case. Just plan on a transmission rebuild often.
As for sound, I have no clue on that one. You-tube has some sound bites on different ones. Me I think quieter is better. I don't want to have to prove myself to every young gun on the road, and a mean exhaust seems to draw them. I would rather just be gone and leave them asking how an old man beat them so bad.
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