i'm kind of decided that i like the feel of a carburated 7 better. i recently picked up a GSL-SE after selling my old GSL. while the GSL-SE was signifiantly quicker and easier to start cold, i liked the feeling of the carb better. not sure what it is...

so i'm planning to go back to a carbed rx-7 in the near future.

 

I like the fuel injection. I dont know if it was that my carb was messed up or what, but it didnt feel very smoothe under power and it didnt have as good of throttle response as my SE.

 

carbed its much easier to work on than that damn computer heheheh

 

this helps a lot though

http://www.nellump.net/peri/epi/firs...gslseIdle.html

 

I can appreciate FI but I really like the throttle response on carbs.

 

I love my sterling carb and the feel it gives the car, there is nothing like mechanical secondaries too. But on the other hand the EFI on my Celica is nice, but I don't think it has the pure throttle responce.

 

When shopping for my 7 I turned down a couple of nicer carbed 7's for less money than I paided for my se. I voted fuel injection

 

carb

 

I vote for carbing your SE

 

Hows that workin out for you? You ended up with one of my babies. Just wanna know how its doing.

 

You'd like it too much

 

Well, IMO, a carb is better than fuel injection when its running properly. An out of tune carb is going to run like ****, but when you get the carb perfectly in tune, I think it actually is better running than FI. That of course is just my opinion, but my car runs like a champ now that I got the carb in tune without any vacuum leaks. Throttle response is also awsome if you do the mechanical secondaries mod and dial in the accelerator pump perfectly (which I haven't gotten around to yet).

 

I'm going EFI on my 20B in the future. For now, I'm attempting to build a manifold from scratch for a carb. Lucky me.

 

Fot this car, I would vote carb (and 4bbl at that). It seems to me to be a natural fit. The first impressions of my modded Sterling Nikki have really left me a believer. With those mechanical secondaries- it really put's you in control of the machine. More of a thinking thing, I guess.

I dunno. FI is great don't get me wrong.. But something about that feeling and sound when the secondaries open..

 

I've also loed the carb. But with my holley I am think FI is better

 

The carb is running beautifully, love it. She is faster, and drifts like you wouldn't believe. I am having a great time with the new setup. Will have pics of new paint up soon as I get her back.

 

When my SE was all stock I had a guy pull up beside me in an 83 at 60mph. He put the window down and asked if I wanted to go. Naturally I said yea. I let him jump first then trew it down to 3rd and proceeded to smoke his **** really bad. He caught up and we went again with the same results. I pulled over at a store and he was right behind me. We got out and after raising my hood he couldn't believe that I had smoked him and was totally stock. Still had a cat on the exhaust too. He then showed me his NEW carb. and direct fire setup, with his straight pipe. He was also street ported. I wasn't impressed with the way it ran, so I would have to go with EFI.

 

EFI, more precise. although can cost alot more is it breaks down.

 

I believe both to be really good, as long as they are properly tuned really.

 

A properly sized and tuned carb can deliver as much power as FI.

 

I have allways been for carb setups.
Recently i decided,that i`am going to start converting my 12A to EFI.

The matter for me at this stage,isnt to get more HP out of my engine.I want it to be dependable.To start right up when its hot.It is sometimes a real pain to get it started when its hot.

There might be some tuning left to get it right with the carb,but i`am just not up for it anymore.

Karis

 

Depends on your needs. For me I need to pass emissions so I had to go with something stock. In Texas we are allowed to swap in engines from newer years so EFI was my only choice if I wanted to go turbo. There were no stock 86+ turbo carbed Rx-7's. The 85 12a was the last carbed RX-7 (in the US).

Turns out this was also very cheap. Cost me next to nothing to go EFI. Of course, I had to figure out the wiring and that wasn't easy. Now that it is done, works like a champ.

EFI has the advantage of being more adaptable to a variety of conditions and is easy to upgrade if you need to add more fuel. The best EFI compared to the best carb, EFI will have a slight advantage.

Carbs are simpler and once you get them tuned in you're good to go. EFI is more complex and has a host of problems that could come up and be difficult to diagnose.

Fortunately for me, my needs dictated what to get so I didn't have to make a choice.

Scott

 

Opening a can of worms, a proper carb will deliver as much or more peak power as an FI system, but the FI will deliver more average power (or TORQUE) than a carb, and with tunable EMS's (especially the Megasquirt) owning, operating, and tuning EFI has become cheap and easy.

SO... EFI all the way.

 

I'm trying to dislodge the misconception from the asses of today's rice-tuners that a carburetor won't or can't deliver the power that EFI can, because it's new-school BS.
I'm not trying to let worms out, but could you please elaborate on just what you mean by this statement;
"...FI will deliver more average power (or TORQUE) than a carb..."?

Torque is a product of the motor, governed by the fuel induction system just as horsepower is. It can have any power curve that you desire within the parameters of the limits of the engine. Programmable FI can make more intricate and specific changes to that curve, and even if you have multiple emulsion systems for each main circuit in the carb you won't be able to match such subtlties. But your assometer won't be able to detect them, either.

But your statement is suggesting that a carburetor can't feed an engine well enough to match the power output of FI, and that's a false statement.

 

Agreed. I am currently running a Holley, and making plenty of power.
Much more than many FD's and TII's running the same boost levels.

However, I DO want to put my Haltech on soon, in order to fine tune, and run different boost levels without having to rejet or run rich/lean, plus the better fuel economy.