I should have gotten a 97 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 03-25-2010, 09:22 PM   #1
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Default I should have gotten a 97

So I have a 99 and I want to start off with a begi s kit. From what I understand it's a lot more difficult to do on an nb vs. na. Suppose I get the kit from begi, what else is required to run safely at 6psi?

I keep reading about returnless fuel systems and timing issues with the stock ecu,etc...

Thanks!
Flounder.
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Old 03-25-2010, 10:22 PM   #2
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So what do you have for sale?

Kit means it has everything you need.
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Old 03-25-2010, 10:29 PM   #3
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Yah it's a complete kit that's designed to work on 99-2004's without purchasing anything else.

And please go introduce yourself and read the Noob thread. You'll get flamed big time for asking stuff like this.
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Old 03-25-2010, 11:11 PM   #4
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flamed flounder?

In all seriousness, i've tried searching. I read brainiacks acticles but the link for the extra pump thing was dead.

Point me in the right direction bra.
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Old 03-25-2010, 11:31 PM   #5
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The kit has everything you need to run it on the car. You do not NEED to buy anything else. But there are upgrades that i would reccomend. Just buy it and stop asking stupid questions.
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Old 03-25-2010, 11:34 PM   #6
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Quote:
Originally Posted by SKMetalworks View Post
The kit has everything you need to run it on the car. You do not NEED to buy anything else. But there are upgrades that i would reccomend. Just buy it and stop asking stupid questions.
what he said! dont be a bitch!
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Old 03-26-2010, 12:17 AM   #7
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The '99 is arguably the best platform to start with. It was the last year of the "stripper"... ie, no power nuthin', which means less weight, and it's got the best flowing head. If you can find a "sport", clean examples with 100k miles are $5k.

Flounder, you do not want to mess with converting a '99 to returnless. Forget that option. The easiest way to get the fuel you need is an FM Voodoo box. It's arguable the simplest way to fuel 5-6psi... but you still need to work a timing solution, and that's not so easy on '99+. For the '99+ cars, if you're serious about this thing, is to get a full function piggyback or standalone. The Adaptronic ECU has enjoyed great success around here and is a great bargain. Some guys have Megasquirt working like a top on their '99+ cars, but for a true PnP piece-of-cake, it's still kinda experimental for the non-geek type. You can always go with the FM Hydra ECU at $2k.

So, to do 6psi correctly, buying new parts (almost), you need the following:
'99-05 Begi-S Turbo System= $1975
Adaptronic ECU= $762
Used Cleaned and Flowed RX7 460cc injectors (or another compatible injector in that sizerange... see the FAQ)= +/- $150

Of course, 6psi will feel just fine for about a week, and then you'll wonder what 10psi feels like. It's just an intercooler away. After the IC and psi bump... you realize that 460's can max out your GT2554r at around 14psi and 240whp... which is feelin' kinda slow. So how much do a set of 550's cost... and how much is a used GT2560??? Hell, you might be at 15psi and 280whp inside of a year. Imagine if you did an exhintake swap and threw in a pair of adjustable camgears and picked up a ****-ton of spool and 15whp on the topend for $250??? What then???

What then is your stock 195series tires were useless 150whp ago and you're into 225rubber and 6UL's for $1k... but you look like you can take stock C6's in a straight line and you almost can. Don't forget the crap stock coolant flow and pick up a Coolant Reroute kit or make your own... and I hope you've already installed a rollbar before you even think about a turbo kit.

LATER!
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Old 03-26-2010, 12:32 AM   #8
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Begi S kit is nice. 6psi will make a big difference in your vehicle. It has in mine!

You can then upgrade to Bell's Skit intercooler upgrade, or run a generic intercooler if you wish. Track Dog Racing has some really nice intercooler kits that, while somewhat pricy, are more than just an intercooler and tubing. TDR gives you ducting as well. Sealing the airflow path so that it has to pass through all of the heat exchangers has proven to be as effective (or more) as a bigass aluminum radiator. TDR's intercooler kits also have the advantage of not having any of the charge tubing run through the wheel wells. No need to trim or cut the fender liners or the undertray. The undertray has been shown to aid in cooling as well as keeping crap out of the engine bay.

A couple of piggyback options not yet mentioned are the AEM FIC, and the XEDE. Both will maintain OBD-II emissions compatibility if that's a concern.

The intake cam from the MSM will slap right into your head.
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Old 03-26-2010, 12:53 AM   #9
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Small detail here, but the compressor outlet tube running thru the fender well (no cutting required) takes out about 30F when operating at 8 psi boost. The 30F results in about 7F less by the time it all reaches the intake manifold. 7F is equivalent to about
.50 psi of boost.

Corky
had to measure it a dozen times to believe it.
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Old 03-26-2010, 12:58 AM   #10
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Thank you!

I had a budget of $3k but after the valve job and new rings i'm down to about $2500, at least initially.

I had planned on getting a shanghai s kit, ebay IC and voodoo box but was wondering if I could get by with just an adjustable regulator for now, or do you still need the voodoo?

What makes timing so difficult on the 99?
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Old 03-26-2010, 02:51 AM   #11
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I would also recommend checking out this site so you can learn some more..

Miata Turbo FAQ: Welcome to the Miata Turbo FAQ
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