OGK - Page 6 - 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 03-23-2016, 06:32 AM   #101
Junior Member
 
Join Date: Jul 2014
Location: Canberra, sort of
Posts: 126
Total Cats: 1
Default

Sealed? Does that mean it comes with a warranty?
Gee Emm is online now   Reply With Quote
Old 03-23-2016, 12:35 PM   #102
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,313
Total Cats: 1,335
Default

Spur gears, straight cut. Weighs 100lbs with the shift lever. I am surprised the rating is horsepower and not torque. Could be that heat is as much a factor as static load.
emilio700 is offline   Reply With Quote
Old 03-23-2016, 12:41 PM   #103
Supporting Vendor
iTrader: (1)
 
OGRacing's Avatar
 
Join Date: May 2014
Posts: 1,764
Total Cats: 46
Default

it's rude to ask numbers but... what is retail on one of those?
OGRacing is offline   Reply With Quote
Old 03-23-2016, 02:25 PM   #104
Junior Member
iTrader: (2)
 
Join Date: May 2014
Location: Arlington, TX
Posts: 328
Total Cats: 40
Default

I can definitely see how it would have a HP rating. The gear endurance allowables drop off above 230F, and rapidly fall off after 260F if I remember right. It's in the AGMA gear design guidelines.

Ideally it would come with a HP rating and a max torque rating. Does it have any provisions for easily incorporating a Trans cooler? If so, that would bump up that HP rating. 375 seems pretty low but I can see them being conservative.

I wonder how much torque it would take to break
Dustin1824 is offline   Reply With Quote
Old 03-23-2016, 03:12 PM   #105
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,313
Total Cats: 1,335
Default

Quote:
Originally Posted by OGRacing View Post
it's rude to ask numbers but... what is retail on one of those?
https://shop.quaife.co.uk/mazda-mx-5...ential-gearbox

Quote:
Originally Posted by Dustin1824 View Post
I can definitely see how it would have a HP rating. The gear endurance allowables drop off above 230F, and rapidly fall off after 260F if I remember right. It's in the AGMA gear design guidelines.

Ideally it would come with a HP rating and a max torque rating. Does it have any provisions for easily incorporating a Trans cooler? If so, that would bump up that HP rating. 375 seems pretty low but I can see them being conservative.

I wonder how much torque it would take to break
Exactly. I'm hoping with our trans cooler, we can get it to live a long happy life with around 300lbs and 400whp (Rotrex)
emilio700 is offline   Reply With Quote
Old 03-23-2016, 03:47 PM   #106
Junior Member
iTrader: (2)
 
Join Date: May 2014
Location: Arlington, TX
Posts: 328
Total Cats: 40
Default

Being spur gears, they don't create as much heat as helical gears. 375HP probably makes 20HP of heat to shed at most, lets call that the trannies heat shedding ability at a safe temp.

At 475bhp (to make 400 whp), you will be making ~25HP of heat, so you will need ~13000 BTU heat exchanger to make up for that extra heat at a minimum.

Certainly doable, although one with even more capacity would be safer just in case, say 20,000 BTU. My rough napkin calculations and assumptions are probably close to reality, but I wouldn't bank a $9k trans on it
Dustin1824 is offline   Reply With Quote
Old 03-23-2016, 03:52 PM   #107
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,313
Total Cats: 1,335
Default

Plan is for a decent size Setrab with a fan on it in the trunk box. We'll do whatever it takes to keep trans temps down to 220 or so. Bigger exchanger if needed.
emilio700 is offline   Reply With Quote
Old 03-23-2016, 03:53 PM   #108
Supporting Vendor
iTrader: (1)
 
OGRacing's Avatar
 
Join Date: May 2014
Posts: 1,764
Total Cats: 46
Default

[QUOTE=emilio700;1317860]https://shop.quaife.co.uk/mazda-mx-5...ential-gearbox
/QUOTE]

at first i thought 6k isn't that bad for a sequential. then i did the dollars to Pounds conversion. Ouch!
OGRacing is offline   Reply With Quote
Old 03-23-2016, 04:13 PM   #109
Junior Member
iTrader: (4)
 
Join Date: Oct 2012
Posts: 106
Total Cats: 14
Default

And you got to ship it from the UK. I want one so bad though so I can live out my childhood rally car dreams. Sequential shifters are just cool.
julio is offline   Reply With Quote
Old 04-18-2016, 08:52 PM   #110
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,313
Total Cats: 1,335
Default

Pulled the trigger on a set of these fenders. Searching for fenders for deviate for 245's I stumbled across a pinterest (wtf) shot head on of this GT3 car with cleco fasteners in. More digging and I discover it's Bob Boig's old GT3 car. Near as I can tell, Pennon only ever made one kit. Pennon is gone, no links, no dba's no nothing. More sleuthing. Owner of Pennon passed a few years back, business closed, molds bought by CCE Composites in VT. Track down CCE and contact owner Steve Maxwell. CCE Composites. He's not sure what he has but is eager to find out. He pulls the molds out, takes pics and voila, same kit. He also has an EP style cowl cover.

This isn't exactly what OGK will look like but those fenders are the starting point. I'll get them made in Kevlar/FRP as that has proven to be a great combination of strength, flexibility, weight and cost. Should easily clear 15x11 with 275's. 245's will be a bit lost in there but we can always throw a 10mm spacer on. Phat.





emilio700 is offline   Reply With Quote
Old 04-18-2016, 09:31 PM   #111
Junior Member
 
Join Date: Feb 2016
Location: Walnut Creek, Ca
Posts: 67
Total Cats: 13
Default

Interesting! Going to be a cool build.
charliehayes22 is offline   Reply With Quote
Old 04-18-2016, 10:34 PM   #112
Junior Member
 
Join Date: Jul 2014
Posts: 60
Total Cats: 2
Default

Jesus,that is wide. I can't wait to see this car finished.
Justin case is offline   Reply With Quote
Old 04-18-2016, 11:00 PM   #113
Elite Member
iTrader: (1)
 
Join Date: Jun 2014
Location: Austin, TX
Posts: 2,849
Total Cats: 271
Default

Girz0r is offline   Reply With Quote
Old 04-19-2016, 01:28 PM   #114
Junior Member
 
Join Date: Feb 2016
Posts: 71
Total Cats: 16
Default



Sherlock cat

That kind of detective work deserves a Sherlock cat.
Attached Thumbnails
OGK-80-index_5dac4ececb050c42744951c8b906a3e6fad8eabd.jpg  
MrJon is offline   Reply With Quote
Old 04-19-2016, 01:38 PM   #115
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,463
Default

I want to see emilio's pintrest profile.
aidandj is offline   Reply With Quote
Old 04-19-2016, 01:55 PM   #116
Junior Member
iTrader: (4)
 
Join Date: Oct 2012
Posts: 106
Total Cats: 14
Default

That is probably the best looking NB wide body/fender kit I've seen. Trying not to molest my MSM too much but this might change my mind. If only the rear fenders bolted off like the front.....
julio is offline   Reply With Quote
Old 04-19-2016, 04:27 PM   #117
Junior Member
iTrader: (1)
 
Join Date: Aug 2008
Location: Austin, TX
Posts: 239
Total Cats: 4
Default

What is the width measure up front across those flares? I'm wondering if those would cover the 16x11s with the 23.5x11R16 R75As. Although not exactly an easy button since the XP car is an NA.
mcfandango is offline   Reply With Quote
Old 04-19-2016, 05:02 PM   #118
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,313
Total Cats: 1,335
Default

No one knows the dimensions. Those pics are all we have.
emilio700 is offline   Reply With Quote
Old 04-19-2016, 05:28 PM   #119
Newb
 
Join Date: Jul 2014
Posts: 20
Total Cats: 0
Default

If it's a true SCCA GT3 car then it's a Miata only as far as the bodywork is concerned, with a tubeframe underneath (meaning mounting points for the bodywork might be completely different than a stock NB, these aren't just "flares").

Here's a link to the same car I found while googling for "miata boig headers" a long time ago.

||| www.sergionicolau.com |||
wagnerov is offline   Reply With Quote
Old 04-19-2016, 05:33 PM   #120
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,463
Default

aidandj is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2.0L BP4W 182whp emilio700 Engine Performance 115 02-17-2012 01:30 PM
Aug 15-16: Miata Challenge Round 8 at ACS Speedway (Auto-X and Trackday/Time Attack) VagaXt Local Meets, Events and Tech Days 18 08-21-2009 11:51 PM
Charles Ng in the OGK video emilio700 Local Meets, Events and Tech Days 0 07-07-2009 10:43 PM
Speedventures wheel to wheel @ WSIR June 26-27 emilio700 Local Meets, Events and Tech Days 0 06-24-2009 10:43 PM
Big brakes & chassis braces @ 949Racing emilio700 949Racing - Miata Accessories 42 01-04-2009 03:11 AM


Tags
ogk, rotrex, tc design, there is no spoon

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 06:29 AM.