markcali7

i just bought my second rx7, and well this time around im getting around to fixing it good..becuz my first 7 was a complete garbage ..well now i bought a 88 convertible, all stock, 110k on the odometer ..and now i have a job so i got money to fix it, so i was wondering..was the first mods you did to ur 7 so it would gain power..?

rick_tj

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Musada

I'm in the same situation....first FC had no compression and seriously needed a rebuild and now i have my new 88 vert, with rebuild. Wish I had gotten it ported. But um, first thing i'll be doing is umm....a suggestion my friend gave me. Order a catalog form racing beat and buy the carburator conversion kit, and slap you a nice eddlebrock carb on it.....shouldn't cost too much, at least I hope......

mwatson184

BOOOOO Eddlebrock!!

Anyway, as stated before, first thing to do is a full tune up. After that go with a nice set of headers (RB for example) and a full exhaust system. NA's are a bit limited, but i'd say after that go for a cold air intake setup or a carb setup. Carbs are definitely not for everyone, and i'm sure 90% of people on here will jump on anybody that tells you to do the conversion...so that's up to you. I've done it to a couple FC's and have been happy, but that's me. If you want to go crazy and have some cash to spend, there is always a turbo conversion...run a search for that on.

Weight reduction is your friend, especially on a 'vert. Get rid of anything and everything you don't need. There are plenty of threads on weight reduction if you do a little search. Will improve acceleration, braking, handling, and gas mileage.

-Marques

Nihilanthic

Why a carb instead of a cold air? Carb, Speed-density or Mass-air you still need to suck in from a cooler area.

mwatson184

good point

Jager

iTrader: (10)

Er, no carb's unless you can tune them yourself.

General mainantance
A form of cold air
FULL exhaust
Weight reduction

Then come back to us for more .

Icemark

Yeah and throw out drivability at the same time...

I wonder why you see more people want to go carb in the south than any other place in the world... do they not teach about the current technology for the last 30 years in high school auto shop any more?

mwatson184

Comments like that get under my skin. Lets generalize and stereotype everyone.

Icemark have you driven a carbed rx-7 with a decent tune. They are plenty drivable. I got 20 MPG on a 13b with a t60 and a street port with a holley 600 double pumper, and it drove just as good better than my 88 SE with fuel injection.

It seems like people on this forum are so quick to jump on others and say "If you don't have first hand experience then you don't know ****." But when it comes to carbs vs. FI everybody and their dog seems to be an expert, and I'm sure 90% of them don't really know **** about carbies. Like anything, it is ALL in the tuning.

-Marques

beamer242

the first thing i did was rebuild and street-port, with a hks filter, removed emissions, poly motor and tranny mounts. and i think thats it.

http://banzairacing.net/winnie_02-05.htm

Icemark

I speak only from experience, probably more experience with working on cars with carbs than with how long you have even been alive. (yep- I just checked your profile- hell I have been driving 8 more years than you have even been alive).

I have owned and daily driven half a dozen cars with carbs, and the same with FI, and I can say without any doubts or reservations that I would never ever own any transportation with a carb again except for maybe a go cart or small race car like another Formula Ford.

Yes its all about tuning. Nothing like spending an hour evey week tuning a carb... Yep I used to do that on a couple of the carb fitted cars I owned. Carbs had worse gas mileage, worse drivability, worse emissions, and no better power.

In fact I even retrofitted my old RA64 Celica with the 22R and originally a carb system to a fuel injected system because I got so tired with ******* with tuning, setting it up, and the ****-up cold start chokes. And don't even talk about going up into the mountains and snow- hell any altitude change ***** up the tune.

With a properlly fuctioning fuel injected system, you have radically better cold start, you don't have to re-tune it everytime a cold weather front comes in and the temp drops under 50F at night, and you get radically better emissions, and in many cases slightly better HP. I guess that is why you see most racing done with cars with FI.-- because carbs are so much better- must be the raceing bodies forcing the use of FI to slow the cars down right??? :sarcasim:

And I get 20 MPG all the time with my fuel injected non turbo FC which puts down 170 HP at the rear wheels. So I don't see what point you are making with the mileage thing.

IMO telling a newbie that one of the first things to do, is put a carb on is just down right illresponsible. Plenty of other mods that he should be considering first, before throwing out an decent FI system, if he wants to make power.

SonicRaT

iTrader: (6)

And modern EFI is quite a bit more capable than a few needles and jets.

staticguitar313

iTrader: (2)

heh