car39 HalfDork
Oct. 5, 2012 4:21 p.m.

Have a 95 Miata NA that I run in CSP. I'm not trying to make it into a national contender, but I'm getting bored watching DVD's on the straightaways as I leisurely motor down the road. It's got a cold air kit, and a decent exhaust. but otherwise it's stock. Don't want forced induction, like the class I'm in, but looking for a little more snap out of the motor. Is 1 99 / 2000 head a good start? I know FM makes $6000 motors, but spending 150% of the purchase price of the car doesn't go very far. Ideas?

peter HalfDork
Oct. 5, 2012 4:32 p.m.

I forget the CSP rules, but if you're allowed to drop in a 2001-2005 motor, do that.

Keith Tanner MegaDork
Oct. 5, 2012 4:38 p.m.

Even just putting the 2001-05 bottom end in will bump your compression from 8.8:1 to 10:1. The VVT is an extra area of complexity to deal with, so mate that 2001-05 bottom end to a 1999-00 head.

Consider a replacement engine management system. They're usually worth 10-15 hp on their own and they'll let you take advantage of any mechanical changes you make. Heck, some of the fastest CSP cars are running E85.

A $6000 FM motor will not be legal for CSP, I don't think you're allowed anything but OE internals. So it would be less to build a CSP-legal motor.

tpwalsh Reader
Oct. 5, 2012 4:52 p.m.

In reply to Keith Tanner:

This.. sorta.

whole motors only, no head/block interchanges in street prepared. A 01-05 motor + E85 + ECU(Hydra or MS+VVTuner) should bring you pretty close to where you should be(160+ WHP). Supposedly a good header will go a long way too.

Have you worked on UD/BD to drop some weight out? Swap the dash, pull the top, etc. I'm sure there are a ton of other little things, but I don't know off the top of my head(ABS system? Diff? Brakes?).

I think the motor will make the biggest difference though.

Keith Tanner MegaDork
Oct. 5, 2012 5:05 p.m.

Ah, I'm not a CSP expert. I thought you could mix and match. If you have to keep the head matched to the bottom end, then I'd go with the 2001 and an ECU that can handle the VVT.

Bill Schenker drops by here once in a while to get his car tuned up, so we have a pretty good idea of what you need under the hood. And let me tell you, it's a high bar when it comes to detail work. His alternator, for example, is about the size of a beer can.

Adrian_Thompson SuperDork
Oct. 5, 2012 5:29 p.m.

If you want more squirrels, why not call Tommy, I though he found a squirrel nest in the yellow car, maybe he can send it too you?

ransom SuperDork
Oct. 5, 2012 5:33 p.m.

In reply to Adrian_Thompson:

I think that was rats, and a big block is going to throw him into XP and ruin turn-in...

Adrian_Thompson SuperDork
Oct. 5, 2012 5:35 p.m.
ransom wrote: In reply to Adrian_Thompson: I think that was rats, and a big block is going to throw him into XP and ruin turn-in...

How do you turbo a squirrel? Give it speed?

ransom SuperDork
Oct. 5, 2012 5:41 p.m.

In reply to Adrian_Thompson:

Not the reference I wanted to find, but pretty close.

Keith Tanner MegaDork
Oct. 5, 2012 5:58 p.m.

I have a mouse in my Miata. Or maybe it's "Mouse".

You'll need to log in to post.

Also on Grassroots Motorsports

Modern Day Track Junkie

1 day ago in Articles

Christina Lam went from the sidelines to full-on track enthusiast in 8 simple steps.

How Ben_Modified Wows the Crowd: 1 Part Imagination, 2 Parts Fabrication

1 day ago in News

Ben_Modified's build combines some of our favorite things.

2017 Audi A8 L

2 days ago in New Car Reviews

When it comes to luxury sedans, Audis are usually front-runners. The A8 L is the biggest and maybe most comfortable ...

Slight Project Pause for Our BMW M3

2 days ago in Project Cars

Few things slow down our project car progress more effectively than a broken arm.

Grassroots Motorsports Experience Ticket Renewals Have Been Sent

3 days ago in News

Check your inbox for our Grassroots Motorsports Experience renewals.

First Drive: Turbo ND MX-5

3 days ago in News

We hit the track with Flyin' Miata's latest power adder.

Project Turbo Miata: Fire Fighting

3 days ago in Project Cars

We transfer the fire system to our new Miata.

Vintage Views: GMC Syclone and Typhoon

4 days ago in Articles

All-wheel drive, turbo power and a Q-ship’s stealth.

Classic Motorsports Mitty Presented by Hagerty Celebrates Porsche

5 days ago in News

Gearhead heaven? We think it looks something like this.

Meet the Rebels Who Started the Cannonball Run

5 days ago in News

Relive those desperado days through movie excerpts, and hear the real facts and wild stories from the legends themselves.

This Weekend at the Mitty: The Ultimate Auto Festival

1 week ago in News

Gates open this Friday for the Classic Motorsports Mitty at Road Atlanta.

ND Miata Turbo Kits Now Available!

1 week ago in News

Add 70 horsepower and 70 ft.-lbs!


Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More