Naturally Aspirated Performance Forum Discussion of naturally-aspirated rotary performance. No Power Adders, only pure rotary power! From the "12A" to the "RENESIS" and beyond.

Custom roadster with 5 letter 13b - which FI?

Thread Tools
 
Search this Thread
 
Old Nov 30, 2021 | 10:28 AM
  #1  
alfisti's Avatar
Thread Starter
Junior Member
 
Joined: May 2020
Posts: 19
Likes: 1
From: NJ
Custom roadster with 5 letter 13b - which FI?

Hi folks. I'm new here, and I have a custom built Lotus 7 type roadster with a 5-letter 13B. It is currently running a Holley 650 double pumper carb. I'd love to put fuel injection into this car - but I'm hesitant to spend real dollars on it. That said... I'd like to take some steps as to figure out what's involved and what the options are.

This engine was originally fuel injected (I assume) since it came from a GSL-SE car (this much I know). The car it's in has no real "wiring harness" or plumping for FI. It is more like a track car with a tube frame. There is electronic ignition in it now.

I see that there are MANY FI systems for this engine I COULD use. What's the simplest? What about the lowest cost? I have a set of tools and can do simple maintenance work on the car, but I'm not a "real" mechanic, and complicated stuff scares me a bit. The car is not a daily driver and I don't track it, but I want it to run well, start easily, and make good power.

If I did want to go with FI, what would make sense to install?

Thanks!
Reply
Old Dec 1, 2021 | 03:38 AM
  #2  
mr2peak's Avatar
Rotary Enthusiast
 
Joined: Dec 2016
Posts: 928
Likes: 1,060
From: Bangkok
With scratch built autocross cars, supercharged rotaries seem to do the best. Road course, you're after a turbo or stay N/A. If you are on a budget, N/A is where you want to be. Turbo fueling and tuning etc will cost real dollars.
Reply
Old Dec 1, 2021 | 08:08 AM
  #3  
alfisti's Avatar
Thread Starter
Junior Member
 
Joined: May 2020
Posts: 19
Likes: 1
From: NJ
Originally Posted by mr2peak
With scratch built autocross cars, supercharged rotaries seem to do the best. Road course, you're after a turbo or stay N/A. If you are on a budget, N/A is where you want to be. Turbo fueling and tuning etc will cost real dollars.
Thanks. I wasn't even thinking of forced induction - more of, which FI system would make sense? Thanks
Reply
Old Dec 1, 2021 | 08:49 AM
  #4  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,837
Likes: 3,234
From: https://www2.mazda.com/en/100th/
there are plenty of choices, but the easy button is probably to use the Mazda intakes, and some aftermarket ecu.
i was going to recommend this https://speeduino.com/shop/plug-and-...speeduino.html it can be programmed to work, but they are out.
Reply
Old Dec 1, 2021 | 10:00 AM
  #5  
mr2peak's Avatar
Rotary Enthusiast
 
Joined: Dec 2016
Posts: 928
Likes: 1,060
From: Bangkok
Originally Posted by alfisti
Thanks. I wasn't even thinking of forced induction - more of, which FI system would make sense? Thanks
haha my bad
Reply
Old Dec 2, 2021 | 07:53 PM
  #6  
peejay's Avatar
Old [Sch|F]ool
Tenured Member: 25 Years
Liked
Loved
Community Favorite
 
Joined: May 2001
Posts: 12,870
Likes: 574
From: Cleveland, Ohio, USA
What is a 5 letter 13B?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
haney4147
Naturally Aspirated Performance Forum
28
Sep 16, 2013 02:05 PM
jumpa56
Old School and Other Rotary
5
Jul 7, 2005 11:27 AM
mungrin
1st Generation Specific (1979-1985)
2
Apr 10, 2004 10:06 PM
Bobsrx7
1st Generation Specific (1979-1985)
6
Oct 17, 2003 06:28 PM
S13 Slide
1st Generation Specific (1979-1985)
10
Dec 14, 2002 03:24 PM




All times are GMT -5. The time now is 01:18 AM.