NASA TT Classing on NA8 with NB1 Head - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 03-02-2015, 10:51 PM   #1
Elite Member
Thread Starter
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583
Default NASA TT Classing on NA8 with NB1 Head

Pretty common mod to swap on the '99-'00 head. But, if I'm reading the rules correctly (Rule 8.4.1(2)), this swap means you have to dyno re-class the car. Is that correct? Anyone out there go through this already? Big deal or easy?
hornetball is offline   Reply With Quote
Old 03-03-2015, 12:04 AM   #2
Elite Member
Thread Starter
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583
Default

Never mind . . . SEARCH NOOB!!!!! LOL.

https://www.miataturbo.net/race-prep...cussion-63027/

Looks like it's time to hit the dyno and send Greg an E-mail.
hornetball is offline   Reply With Quote
Old 03-03-2015, 01:32 PM   #3
Senior Member
iTrader: (2)
 
Join Date: Aug 2013
Location: Houston, TX
Posts: 598
Total Cats: 30
Default

Dyno reclass really saved me some points.
140 in a 2450 car is like TTE with seven...
SchmoozerJoe is offline   Reply With Quote
Old 03-03-2015, 01:42 PM   #4
Elite Member
Thread Starter
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583
Default

Yeah, before carefully reading the rules, I was adding up the points for the '99 head. I was getting dinged for the head, intake, throttle body, injectors, fuel rail . . . . Just that mod alone was adding up to TTC on a points basis. Made no sense. So, I can see why it's a lot more fair to do a dyno reclass.
hornetball is offline   Reply With Quote
Old 03-03-2015, 10:57 PM   #5
Junior Member
iTrader: (1)
 
Join Date: Sep 2009
Location: Colorado
Posts: 166
Total Cats: 5
Default

GraemeD is offline   Reply With Quote
Old 03-04-2015, 12:23 AM   #6
Elite Member
Thread Starter
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583
Default

That's for a Spec Miata. I don't fit under that rule with my mods. I haven't officially dynoed yet, but am probably around 140-150.
hornetball is offline   Reply With Quote
Old 03-04-2015, 12:39 AM   #7
Junior Member
iTrader: (1)
 
Join Date: Sep 2009
Location: Colorado
Posts: 166
Total Cats: 5
Default

Quote:
Originally Posted by hornetball View Post
That's for a Spec Miata. I don't fit under that rule with my mods. I haven't officially dynoed yet, but am probably around 140-150.
Where does it mention "Spec Miata" on page 63?

If you are 140-150 and don't want to detune, then you are right and will have to apply for a new base class
GraemeD is offline   Reply With Quote
Old 03-04-2015, 01:00 AM   #8
Junior Member
 
Join Date: Mar 2010
Location: Durham, NC
Posts: 409
Total Cats: 19
Default

Those reclasses are for BTM heads. In his case that would be a NA8 head.
FatKao is offline   Reply With Quote
Old 03-04-2015, 02:39 AM   #9
Senior Member
iTrader: (2)
 
Join Date: Aug 2013
Location: Houston, TX
Posts: 598
Total Cats: 30
Default

The dyno reclass email is usually responded to in a few hours.
Greg is very prompt at delivering the results.
SchmoozerJoe is offline   Reply With Quote
Old 03-04-2015, 08:28 AM   #10
Elite Member
Thread Starter
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583
Default

Actually, rereading the Appendix C stuff, it covers extensive mods but has quite a HP limit. Looks like an attempt by Greg to limit his E-mail load since Miata guys are always mucking with their cars.

We'll see where I end up. If my dynojet is 128 or less, I can use that rule. Otherwise it will be E-mail time. I'm honestly expecting TTE* as my base class.
hornetball is offline   Reply With Quote
Old 03-04-2015, 07:28 PM   #11
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,363
Total Cats: 1,323
Default

Quote:
Originally Posted by SchmoozerJoe View Post
The dyno reclass email is usually responded to in a few hours.
Greg is very prompt at delivering the results.
He must like you
Savington is online now   Reply With Quote
Old 03-05-2015, 03:59 AM   #12
Senior Member
iTrader: (2)
 
Join Date: Aug 2013
Location: Houston, TX
Posts: 598
Total Cats: 30
Default

Quote:
Originally Posted by Savington View Post
He must like you
Yeah? Guess volunteering at the events has it's advantages then!
SchmoozerJoe is offline   Reply With Quote
Old 03-10-2015, 12:33 AM   #13
Junior Member
iTrader: (1)
 
Join Date: Jan 2012
Posts: 115
Total Cats: 9
Default

Quote:
Originally Posted by Savington View Post
He must like you
this. Fastest one ive ever received was about 2 days, took 3 and a half weeks for my last/current one when i discovered i was 10 hp under my max.

that was with the proper way to ask for a reclass (all the info as requested per the TT site). a week and a half later, i got drunk and did my own math to equal the same P/W ratio he gave me for my underpowered one and even suggested the *, the max i wanted and weight i wanted, then another one a few days after apologizing for it. A week after that, i got my reclass. Oddly enough, he gave me those reclasses of the ones where i got drunk. Guess my drunken math was logical.
JSpeed6 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 58 Yesterday 10:04 PM
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
Nuke Mars! Joe Perez Current Events, News, Politics 8 09-30-2015 05:41 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:52 AM.