Xtreise

Ok all.. I want the honest truth…we have here a 1982 RX7 12A with Racing Beat System, garbage removed.. like the air pump etc…What I’m wondering is….are these First Gen’s suppose to be fast like everybody boasts about. What I mean is, from first to second gear…well it don’t mean anything in the city, almost anybody can beat you. These cars I guess are only for highway…. am I right…. from third gear and on ?? We don’t have no Porting job on the motor, however, we hear talk from other guy’s who have the same First Gen’s, no porting done, but doing donuts in parking lots and beating all these cars . Can someone out there be honest and clear this up . BTW the motor is fine, compression and timing etc. What would you suggest before we install a 327 or 350 under the hood.

Jaared

not sure if this is the place to ask if you should put a v8 in your rx7.

ok i take that back... i AM sure that this is NOT the place to ask about piston related info in general. we dont take to kindly to them v8 folk round thez parts.

gergrx7

go to v8 section of this forum, under rotary performance i think. or torquecentral.com

casio

at least the first gen section. get flamed in your generation specific area at least.
rotaries can kill in drag racing if thats what you wanna know (lower gears). i remember someone switched from a first gen to a 5.0 (i believe) and spent more money to equal where they were at with the 1st gen. rotaries can be fast, but if youre dead set on a swap, thats fine too. i guess i'd say the 327.

stupify

302 or 350

I know one is a ford and the other is a chevy but I'd put a 302 in a 1st gen and a 350 in a 2nd gen

FD Rey

Stay with a 1.3 liter, I haven't lost to a domestic yet, there is more infor on this site on rotary's then pistons. So I recommend you stay with the 13B's.

peejay

302's are also Chevys.

And actually, the Pontiac 301 had the same bore and stroke (4x3) as well.

I agree, sweet 302 for the sweet 1st-gen and tank-like, crappy, yet commonplace Chevy engine for the tank-like, crappy, yet commonplace FC. It doesn't hurt that the 302 practically falls right in to the 1st-gen if you swap the crossmember around, while fitment into a FC is made complicated by the oil pump wanting to be where the steering rack is in the FC. The SBC, having the distributor and oil pump at the wrong end of the engine, does not have this problem.

FirstGen7

Dude, you're running a 12A, of course you're not going to go super fast...

peejay

Bite your tongue.

Actually I thought the latest issue of GRM was funny. One team apparently half-assed a 12AT into an SA, and they ran 15.9x in the quarter mile, on gumballs. Funny, my '85 GSL, full luxo, with a stock 12A (nothin' but better fuel pump and a cheap header) also runs 15.9x... on street tires.

FirstGen7

Hahaha, that's awesome

Sure 12A's can go fast, but it sounds like this guy is expecting some crazy *** **** to happen...

Like the world exploding and him inside his 7 flying into space, dodging black holes and racing at the speed of light, but not before having sex with an alien...lol

thevanillaninja6

The 5.0 Chevy had was actually a 305. An extra 3 cubic inches for 'ya. (and it was a bad motor, made 180 hp in the Camaro)

crazyinkc

Chevy made a 302 in the late 60's for the Z28 and it was a bad mother.

thevanillaninja6

true true, it was a 350 with a shorter stroke

290 hp @5800 (though 11:1 compression is high for a factory motor) that isn't bad saying the 350 made only 5 more horses

85rotarypower

Yeah, thats true. Chevy's late 60's 302 made something like 290hp and 290ft lbs of torque. Need I say more?

It does sound like this guy expects more performance than what the 7 can offer in stock form. But he says that he can't beat ANYTHING. Well, first and second gear is where races are won and lost. If you can get the edge on someone before you hit third, you got him beat. Something tells me he just isn't a good driver.

driverslove

personally, if it would fit...327

Metallic_rock

GM put that motor in a lot of smaller busses, too.

jweather73

Ok, guys... drop the ****-ton engine talk or at least move this post (attn: admins!)

If you want the lil' 1.1 litre engine to outrun ****-ton engines, do your homework. I bought an '82 from a guy that had modified carb (similar to the Sterling), Borla muffler and I'm not sure about the cat... other than that, it was PDQ and I was able to outrun damn near any stock ****-ton engined cars... the only ones I wasn't able to get off the line were the T/A, FB, or Camaro.... POS mushtangs, however, even a lot of mod'ed ones, were no contest... they are and always will be a POS and too slow for most 7's as far as my opinion goes. Camaros have my respect.... mushtangs don't.

Anyway, the point is, you don't need a turbo, you don't need a porting job, all you need is to do your homework, search this site, and you'll be able to figure out what to do to make them faster. I will be honest with you though... no 1st gen, completely stock, will outrun many bigger ****-ton engines...unless they have a crappy driver behind the wheel.

That's my 2 cents worth.

kiker14

iTrader: (1)

keep the rotary, rev it high dude... We don't have low end, but mid and high we are set... just keep the rpm's up, and keep saving up for new clutch's

j9fd3s

iTrader: (3)

400hp is no fun cause you can beat anything wihtout working, to beat people with a 12a you gotta work as a driver, thats more fun

MarkPerez

I must admit i like V8's, in any car. i also like the rotory because of it's size 'mighty mouse ' and the rx7's were designed around the rotory engine.. some here have done the V8 swap with much success from a 5.0 ford to a small block chevy 283-327-350. i have not heard of a ford 351/w or a 400 chevy. i wonder if a 351C-4V would fit.. me, i love the ford boss 302, 1969 engine over the 1970 boss 302. a canted-valve headed engine may be too heavy for a 1st gen... forgive me, but someone needs to spend more time with there rotory powered car because a little 1.1 litre 12a can fly.. out of the chevy line-up i would go 327 4V 4 bolt mains,solid lift bump stick,no more then 10:1 compression because the pump gas,202 or 194 heads, and a 5 speed.. when doing such a swap one should consider the rearend at the same time. how long a stock mazda rearend lives with a V8 depends on how well or how bad ones driving skillz are. i own 2 rx7's and i'm still amazed with the rotory engine's.

Tanjo

A 327 4V? What the hell are you smoking?

MicahMan

ford engines suck go with the rotary

85rotarypower

I really don't like having too much power. The car becomes unstreetable if you go much over 300 hp in an FB. Then it just becomes overwelming.

jweather73

I thought this was a ROTARY forum???

MarkPerez

What i smoke all the time... my young little friend, just to help you to understand 4V means a 4 barrel carb.

unless i'm way off. and you mean something like crower
small block injector setup ?

or even an 8V setup ? duel quads, 2 four barrel carbs.

"Bracket" racing has to be the best fun


oh.. and it's cronic !! Lol

It's not just a rotory forum. read the name of the 'club'
at the top of the page. RX7 club.