Spec Miata Community   
search | help | calendar | games | forum home

  next oldest topic   next newest topic
» Hello Spec Miata Community » SpecMiata.com » Spec Miata to FProd » Converting a 1.6 SM to FP

 - Email this page to someone! | Subscribe To Topic  
Author Topic: Converting a 1.6 SM to FP
RHarris Verified Driver Made Donation to Website
Moderator

Region: Wichita
Car #: 8
Year : 1992 FP
Posts: 406
Status: Offline
Icon 1 posted  Profile for RHarris   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

Let's start this thread specific to the items of the actual conversion. One thing that has come up in conversation is that of an ITA car. I know there is another thread about ITA vs SM. I haven't read it but there is a natural progression one could take going from SM to ITA then to FP or even EP.

One of the first things you could do that Jesse brought up is to go with an aftermarket computer system.

Let's just start a list then we can open it up for discussion and add to it. Keep in mind all of this can be done in steps. Pick the items that are easy and cheap and go racing!

1. Sell the Hard Top
2. Remove windshield and cut A pillars
3. Locate ballast to passenger floor
a. Fuel Cell and Battery
4. Aftermarket computer system
a. Remove ALL wiring...every inch of it
b. You can wire the computer system yourself. It may require a few tools for wire connections/crimping, otherwise you can follow the instructions.
5. Read Production section in the GCR [Smile]
6. Use the Complete stock brake system.
a. You don't need anything aftermarket. The stock brake system and bias works perfectly
7. You could probably get by with some 8" Goodyear slicks or 8.5" Hoosier slicks without having to do any body modifications or fender flares to get started. Most full built production Miata's are using the 9" slicks 23x8x15 but would probably require some fiberglass fender flares.
8. Upgrade to Delrin or poly bushings
9. Torsen Diff
10. Direct Intake system
11. Headers with 2.5 exhaust
12. Upgrade Fuel Injectors
13. Accusump
14. Shocks - Unlimited choices
15. TBD

--------------------
Rick Harris
F Production - A place for 1.6 Miata's

http://www.v8roadsters.com/

http://jesseprathermotorsports.com/
http://www.wbrgraphics.com/
http://haremotorsports.blogspot.com/
2008 F Production National Champion

Seabee
Member

Region: NER
Car #: 61
Year : 94
Posts: 56
Status: Offline
Icon 1 posted  Profile for Seabee     Edit/Delete Post  Report this post to a Moderator

Rick, I am helping a friend build an FP. Depends on the level of prep you want. And how much mechanical and bodywork time you want to spend.

It does take a truckload more time than an SM car.

But as you said you can add these items later.

--------------------
Steve

jprather
Member

Region: Kansas
Year : 1990
Posts: 35
Status: Offline
Icon 1 posted  Profile for jprather   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

One of the great things about a Miata in general is the fact that you can pick the prep level you're interested in and race it anywhere. From SM to EP and GT cars, they're all great.

Another thing to point out, just like in SM, many of us have spent the last multiple years developing the 1.6 car/engine package specifically for production racing. Just like you can buy bolt on pieces for your SM, the same is true in F Production. This also makes your conversion easier.

RHarris Verified Driver Made Donation to Website
Moderator

Region: Wichita
Car #: 8
Year : 1992 FP
Posts: 406
Status: Offline
Icon 1 posted  Profile for RHarris   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

quote:
Originally posted by Seabee:
Rick, I am helping a friend build an FP. Depends on the level of prep you want. And how much mechanical and bodywork time you want to spend.

It does take a truckload more time than an SM car.

But as you said you can add these items later.

Are you converting a current bulit SM or is this a tub up new FP build?

--------------------
Rick Harris
F Production - A place for 1.6 Miata's

http://www.v8roadsters.com/

http://jesseprathermotorsports.com/
http://www.wbrgraphics.com/
http://haremotorsports.blogspot.com/
2008 F Production National Champion

Kendall Jones
Member

Region: Detroit
Posts: 14
Status: Offline
Icon 1 posted  Profile for Kendall Jones   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

I dont think the 1.6 cars can run the larger 94+ differentials in FP right? The differential housings are different and I dont think you can change them.

Substitution of the differential housing is only permitted on front engine/front drive or rear engine/rear drive cars through the use of an alternate transaxle.

Kendall

--------------------
++++++++++++++++++++++

Kendall Jones
http://detroitdyno.com

David Dewhurst
Veteran Member

Posts: 574
Status: Offline
Icon 1 posted  Profile for David Dewhurst     Edit/Delete Post  Report this post to a Moderator

Kendall, per the spec line the 1.6 may run the 94 diff housing part # MA0227600A and MA0327100A.

--------------------
Have Fun [Wink]

David Dewhurst
CenDiv
Milwaukee Region
Spec Miata #14

TillerTech
Member

Region: SoPac
Car #: na
Year : 89
Posts: 441
Status: Offline
Icon 1 posted  Profile for TillerTech     Edit/Delete Post  Report this post to a Moderator

And as an added bonus, you are not limited to a spec gear ratio and or diff. My current car is setup with 4.88 gears and a clutched diff.

I was talking to a very well known E driver after the RunOffs. He broke the diff and LS during qualifing and had to install the backup stock gears. He told me that his best lap of the week was on the stock gear ratio.

J

--------------------
Miata Race glass and CF from Legacy Molds. 4 1/2# CF Hood
http://www.jnent.net

Seabee
Member

Region: NER
Car #: 61
Year : 94
Posts: 56
Status: Offline
Icon 1 posted  Profile for Seabee     Edit/Delete Post  Report this post to a Moderator

quote:
Originally posted by RHarris:
quote:
Originally posted by Seabee:
Rick, I am helping a friend build an FP. Depends on the level of prep you want. And how much mechanical and bodywork time you want to spend.

It does take a truckload more time than an SM car.

But as you said you can add these items later.

Are you converting a current bulit SM or is this a tub up new FP build?
Rick, the project was from the gound up FP project.

--------------------
Steve

Kendall Jones
Member

Region: Detroit
Posts: 14
Status: Offline
Icon 1 posted  Profile for Kendall Jones   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

quote:
Originally posted by David Dewhurst:
Kendall, per the spec line the 1.6 may run the 94 diff housing part # MA0227600A and MA0327100A.

Duh, I forgot to check the spec line (and I'm spose to know these things!)

thanks
KEndall

--------------------
++++++++++++++++++++++

Kendall Jones
http://detroitdyno.com

RHarris Verified Driver Made Donation to Website
Moderator

Region: Wichita
Car #: 8
Year : 1992 FP
Posts: 406
Status: Offline
Icon 1 posted  Profile for RHarris   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

[/qb][/QUOTE]Are you converting a current bulit SM or is this a tub up new FP build?[/qb][/QUOTE]Rick, the project was from the gound up FP project. [/QB][/QUOTE]


Excellent. That's exciting. Your friend will have a blast driving a built FP Miata. Let us know if and how we can help.

--------------------
Rick Harris
F Production - A place for 1.6 Miata's

http://www.v8roadsters.com/

http://jesseprathermotorsports.com/
http://www.wbrgraphics.com/
http://haremotorsports.blogspot.com/
2008 F Production National Champion

RHarris Verified Driver Made Donation to Website
Moderator

Region: Wichita
Car #: 8
Year : 1992 FP
Posts: 406
Status: Offline
Icon 1 posted  Profile for RHarris   Author's Homepage     Edit/Delete Post  Report this post to a Moderator

Here is a link to a really nice competitve F Produciton Miata. Not an advertisement but just to show the good deals out there. [Wink]
http://prodracing.com/prodcar/viewtopic.php?f=4&t=11275

--------------------
Rick Harris
F Production - A place for 1.6 Miata's

http://www.v8roadsters.com/

http://jesseprathermotorsports.com/
http://www.wbrgraphics.com/
http://haremotorsports.blogspot.com/
2008 F Production National Champion

   

   Close Topic   Feature Topic   Move Topic   Delete Topic next oldest topic   next newest topic
 - Printer-friendly view of this topic | Subscribe To Topic
Hop To: