i have a 1983 fb carbuerated 13b i have racing beat intakes and headers and muffler what are some other mods i can do without having to break down the engine to mod?

 

This will be a never ending desire to go faster. Weather you have a 93 single or a 79 stocker, this desire will always be present. How much money do you have to spend. However look at the DLIDFIS mods, intakes there is a plethera of information here. Try using the seach button.

 

i'll want to spend a couple hundred maybe 600-800 dollars

 

and whats dlidfis i searched it but its still very vague?

 

Its an ignition mod using 2nd gen stuff. Also you could go MSD ignition. Electric fan, pulleys, rear gear. The list is endless of course. I assume you mean a RB power pulse air filter box. You could go with a better induction. Holley, weber, <shameless plug> Sterlingcarb (would allow you to keep the RB setup you already have).

 

The 2nd gen coil trick is a good mod.
Changing the gearing to 4:78 gears will get you better 0-60 times and 1/4 mile times.
Electric fan will free up some HP when not in use.

 

Do you know what carb is currently on your car? If not post up a pic. There might be some gains in changing the carb over to a different one. Other than that, there might not be much more you can do to get more power, but you can get more power to the ground by changing a few things. A light weight flywheel, better clutch, higher number rear end gears, to name a few.

 

Actually DLIDFIS adds a third first-gen coil. You are thinking of 2GCDFIS. Either one is a good mod.

 

So the engine has been swapped at some point?

All Rx7s produced in 1983 had 12a engines. The only FB with a 13b was the '84-'85 GSL-SE.

If you have a carbed 13b it's either a much older rotary, or a newer 13b with an aftermarket carb.

That alone would be worth knowing because carb tuning is always a good way of getting more usable power.

If you have a racingbeat intake, I'd assume you have either a Holley or Weber. Do you know what year the engine came from?

What kind of compression do you have? what kind of fuel pump and regulator do you have?

Jon

 

Getting it pro tuned on a dyno could easily add 30 HP if your carb isn't running nicely...@ $100 an hour, for 2-3 hours it's probably the best money you can spend... Just make sure you find somone who knows how to tune a rotary...

I'd guard against the MSD conversion, since it did **** all for me. Biggest waste of money ever. for me.

Your pretty much out of power-adding options without a rebuild/motor swap, but you still have plenty to go on getting the power down to the ground... rear-end ratio, suspension, flywheel, clutch. Probably in that order... There was an old article in RX-tuner about making a GSL just as fast as an SE just by suspension and a rear-end gear change... They lost by a tenth in the 1/4, but slaughtered the SE around the track... Suspension and ratios can make a big difference...

 

Look for a really big hill. Your top speed can increase by as much as 10% for practically no financial outlay. j/k

 

Keep in mind, if you want to add go fast mods, you need to keep up with handling and braking mods too. If you can't control the added speed, there's no point in having it. Another item to consider, which many neglect is cooling, oiling, braking and suspension mods. While they may not make the car faster, they will help it last longer. Building a car is a total package, not just how fast one can make it go.

 

lol, hence why I'm at 8k+ invested and haven't done the engine yet.

Jon

 

Going faster doesn't make sense, it's how well the thing is working that counts. You need to make a car, you know what I mean?

Ray