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Old 07-27-2006, 06:08 PM   #1
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Default gt28rs 1.6L plans and start :)

Well, I've posted a couple times... I may as well lay out some of the basics with the build I'd like to put together over the next year.

I picked up my 93 w/vlsd a couple weeks ago, its seen much better days body wise... abused/kick/tree'd etc . But it only has 90k on the clock, so that works well for me. For this season it'll be autox/tracked (once rollbar/seat/harness is in) in stock form so I can actually learn this car.... For next season however... I want it to evolve... a bit....

For starters.. I just sent my gt28rs over to Lovefab.. and Cody is going to make his first Miata manifold . Plans are internal/external gate abilities, Mini-Eq style (check www.lovefab.com for pictures of his honda versions), 3in DP capable... lower turbo placement so the DP is smoother off the hotside and so I can get it aimed nicely for a Vmount setup...

Yes... Vmount. I'll be picking up an aftermarket radiator, and then the fmic/radiator fun begins with all sorts of wierd fitment and such. At the same time I do radiator rerouting, I'll do the reroute off the back of the block also.

I'm really struggling with the EMS though... I'm very tempted to just spend the money for an AEM EMS or Hydra... . but its very much against my typical build style. Most likely I'll be heading towards a MegaSquirt build, its much more in line with liking to have my hands in everything...

We shall see how it all turns out. Manifold should be done in a couple weeks... and the rest will mainly wait until winter.

This season really is just for stock driving of the car... first rwd car for me... and I want to know the car as it sits... before it goes way way way past stock.

Suspension and brakes will follow along with the turbo setup. Possibly a cage also, but I'd hate to loose the ability to street the car. I just don't believe in streeting a car with a full cage.... idiotic to me.

And yes... I'll post pictures of the manifold when its done

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Old 08-03-2006, 08:28 PM   #2
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i would like to see some pictures.
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Old 08-04-2006, 06:14 PM   #3
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Manifold should be in process over the weekend. Should have some pictures soon .

Assuming the local Miata he is using for the prototyping is available as planned..
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Old 08-09-2006, 01:43 PM   #4
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Quote:
Originally Posted by Splitime
Manifold should be in process over the weekend. Should have some pictures soon .

Assuming the local Miata he is using for the prototyping is available as planned..
Backed up a hair due to S2K kits. He's still trying to fit the miata in and get it all together.

I'll keep things updated.
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Old 10-03-2006, 08:55 PM   #5
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Manifold is in... its quite a nice piece. Working on getting nice pictures . I'll post as soon as I can manage a camera.
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Old 10-03-2006, 10:26 PM   #6
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Small teaser... video camera isn't good enough for real pics yet
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Old 10-03-2006, 10:41 PM   #7
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That's ridiculously sweet.

Cool you've actually planned your setup before starting.
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Old 10-03-2006, 11:44 PM   #8
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I have seen a bunch of Cody's work over on Honda-Tech. You will have a sweet setup for sure.
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Old 10-03-2006, 11:59 PM   #9
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Congratulations.

Dang, I should have gone over there and seen the finished project. I am curious to see what it looks like. Mine won't be for some time. When I get a bunch of money, do a low compression build and go hog wild.
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Old 10-04-2006, 12:21 AM   #10
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Are we gonna get to see another ramhorn style manifold on a Miata?
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Old 10-04-2006, 08:35 AM   #11
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I think ramhorn is "played" out

This one is setup for full 3inch downpipe without cheats, off a vband housing adapter. It is also configured for a tial 38mm wg and the outlet is oriented for a vmount setup... so it isn't exactly run of the mill
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Old 10-04-2006, 09:23 AM   #12
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Old 10-04-2006, 10:48 AM   #13
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Sounds like good planning- looking forward to seeing the build up. Welcome to the world of rwd. Once you've got some power you'll feel the ecstasy of torque steer absence.
vband is the biggest regret on my setup - regret not doing. Bolt up flanges suck. Vband allows for a degree of permanent adjustbility. That's nice for things like swapping out mufflers... cat...
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Old 10-05-2006, 08:40 AM   #14
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As promised. Had a friend take some pictures while I swapped out the rearend for a 2001 torsen... solo it took me 5hrs, I've never been under a Miata before Was fun














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Old 10-05-2006, 09:43 AM   #15
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wow that is hottness, how much lower does that put the turbo for your less 'angular' DP?
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Old 10-05-2006, 10:53 AM   #16
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Quote:
Originally Posted by BrokeEnthusiast View Post
wow that is hottness, how much lower does that put the turbo for your less 'angular' DP?
Actually, 2 small changes in design layout. It wasn't the low mount style originally thought about, it now mounts towards the front of the motor and somewhat straight out from it. This allows for a full uncheated 3inch mandrel bend downpipe off the vband adapter I have on my GT28RS.

Also modifed was the mini-eq style... Cody went with something entirely unique instead.
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Old 10-05-2006, 12:26 PM   #17
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Very Nice.

I wonder how he cuts the collector area so nice. Stainless steel weld-ells take a long time to cut and are hell on cutting equipment. There has to be a trick for that.

Last edited by TurboTim; 10-05-2006 at 01:07 PM.
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Old 10-05-2006, 12:40 PM   #18
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Oh, forgot to add to extra happenings with the car.

Kirk Rollbar is in.
Seat brackets for the picture background seat are almost done, then seat and harness goes in.
Just had a Koni Cupkit revalved to SPSS3 (RACE) spec... Ground controls to come later with still undecided custom rates.
Rear swaybar removed.

Soon to depower rack, pull all Cruise/AC/powersteering junk.
Also working on junkyard supplied low-pro style lights, or a midd tenn clone with similar junkyard sourcing. Factory lights and motors just are simple weight to get rid of
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Old 10-05-2006, 01:13 PM   #19
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Quote:
Originally Posted by Splitime View Post
Soon to depower rack, pull all Cruise/AC/powersteering junk.
You're going to have to to fit that beaut of a manifold in there.
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Old 10-05-2006, 01:38 PM   #20
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Dude...that manifold is sick.
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