Mountain RX-7 Forum Serving Montana, Wyoming, Utah, Colorado, and New Mexico

SCCA Espanol Autocross: May 31

Thread Tools
 
Search this Thread
 
Old 05-20-08 | 01:12 AM
  #1  
DamianSoul's Avatar
Thread Starter
The Choopster
iTrader: (4)
 
Joined: May 2004
Posts: 447
Likes: 0
From: Albuquerque, NM
NM SCCA Espanol Autocross: May 31

The RGRSCCA is having their sixth points event this season at Espanol Airport (discussion thread, pre-registration, course map).
This was a decent venue with very good pavement. The last course was mostly second gear with two places where a downshift to first was necessary.
Stephen and I plan on co-driving Beelzebub provided that the rebuild is successful.
Old 05-23-08 | 11:13 PM
  #2  
fcdorifto08's Avatar
Full Member

 
Joined: Sep 2004
Posts: 179
Likes: 0
From: New Mexico
What's this of a rebuild I'm reading about?
Old 05-25-08 | 03:09 AM
  #3  
DamianSoul's Avatar
Thread Starter
The Choopster
iTrader: (4)
 
Joined: May 2004
Posts: 447
Likes: 0
From: Albuquerque, NM
Originally Posted by fcdorifto08
What's this of a rebuild I'm reading about?
Stephen and I spun the front rotor bearing during the UNM G-lot SCCA event in March. It took all the other bearings in the engine with it. With the r-compound tires and a dialed in suspension, the car corners so hard that all the oil moved away from the oil pickup. The bearings were starved for a split second while the engine was near redline.

I'm rebuilding the engine in my garage. I've spend all week porting the intake manifolds and port matching the lower intake manifold and housings. I even ground out that insanely hard diffuser in the exhaust port. I'd do a streetport if I could, but it's against CSP rules. Tomorrow I put the engine back together. Unfortunately, my injectors aren't back from Marron Injector. I sent them off for cleaning two weeks ago!

Anyway, the engine will have an oil pan baffle to prevent oil pickup starvation during high-g movement, and an oil pan brace to prevent those stupid oil pan leaks that happen with all our cars. There are a bunch of other things that I've done to the car to prep for CSP. The main power mods are the Rtek 2.0, header to "open" exhaust, and port matched intake. The main race mods are the 245/45/17 front and 275/40/17 rear Kuhmo V710 race tires, ISC coilovers with Bilstein inserts, and MMR solid supsension bushings. Here's where I keep most of the info on how I race prepped the car if you're interested.
Old 05-25-08 | 10:35 AM
  #4  
fcdorifto08's Avatar
Full Member

 
Joined: Sep 2004
Posts: 179
Likes: 0
From: New Mexico
That's a 6-port motor right? Careful not to port out the intake ports too big, I heard it'll make the motor bog at low revs.
Old 05-25-08 | 12:43 PM
  #5  
DamianSoul's Avatar
Thread Starter
The Choopster
iTrader: (4)
 
Joined: May 2004
Posts: 447
Likes: 0
From: Albuquerque, NM
Originally Posted by fcdorifto08
That's a 6-port motor right? Careful not to port out the intake ports too big, I heard it'll make the motor bog at low revs.
Yeah, with a 6-port NA you can really screw things up if you mess with the aux and secondary ports without knowing what you're doing. I'm not doing any interior porting though. (Although I would love to open up the primaries, it's against CSP rules). I'm just port matching the lower intake manifold to the housings. Basically I just lay the gasket over the lower intake and scribe a mark where material needs to be removed. I do the same for the engine side. I can go 1 inch into the housings, but no further. Air flow is improved, but nothing like an internal port. Thanks for the advice.

You gonna race one of your cars anytime soon? I bet a set of extreme performance summer tires is cheap for your FB. If you race it twice you can join Mazdaspeed and get a good discount on almost any part you want.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lou Byer
General Rotary Tech Support
20
10-12-20 08:03 PM
Sandro
3rd Gen General Discussion
24
12-30-17 03:35 PM
finky
Race Car Tech
1
09-28-15 04:21 PM



Quick Reply: SCCA Espanol Autocross: May 31



All times are GMT -5. The time now is 08:26 PM.