You are a pervert!

 

Perhaps for the same reasons we enjoy RX7's and other rotaries...It's fun.

 

This depends on what you are looking at with the car. I bought an rx-7 because of the performance it offers but also because I like the unique rotary engine as apposed to a piston engine. Throwing a V8 in an rx-7 makes it "unique" in the sense that it is one of few rx-7s with one but it doesn't mean it holds any unique quality comparing the engine to other ones on the road. Polar moment of inertia is something that is brought up a lot of the time in these discussions as well. With a significantly heavier engine being placed in the front, it will change it some. I'm not saying that this is the case for ALL V8s put into an rx-7 but if you end up with one that is either significantly heavier or has to sit farther forward or higher, it will have an effect on handling. I personally think it ruins the uniqueness of the car but I wouldn't say that it makes the car a piece of crap. What do you value?

 

As far as discusson here it just comes down to personal preference. Some people like pepsi some coke.
V8 RX-7's are not for evereyone.

 

Yes they are, people just don't like them because they violate the rotary while spanking it too.

 

"I bought my RX7 for its performance, but also for the rotary. V8 rX7s are unique too, but it's still the same kind of engine all other cars have. PMI will increase if a V8 is swapped into a 7, but not all V8s affect it that much, although all V8s sit higher than the rotary which will throw off the CG. It ruins the uniqueness of the car for me, but doesn't make it a POS."

-88Integra's translation.

 

Well if it makes people feel better about this whole v-8 in a 7 travisty I always thought it would be cool to have a FI Boss 302. I like 350's but they are just too common of a swap. Besides, it would probably just be a straight line car anyhow so CG really woudn't be an issue. True putting a v-8 into a rotary powered car turns the car into some sort of bastard child, but then again I am all about putting speed before looks and doing a v-8 swap would produce more power and would be cheaper than trying to get a rotary to produce the same amount of power. Keep in mind I was only speaking of economics to speed in doing that swap. I think a really awesome swap would be to swap one of the new vette LS7s in a 3rd gen, just because I think it would be cool to power a vette looking car with a vette engine. The newer vettes share some very common lines with the 3rd gen rx-7s.

 

LT1 (cast iron block/alum heads/intake) and T-56 6speed go for about $3K in running condition with under 60K miles including wiring harness. They can make 330rwhp with minor bolts ons and stock heads/cam and only intake/exhaust mods. That will put a 2nd gen into the 12's with traction.

LS1 is an aluminum block/heads/composite intake and with intake exhaust mods will make 400hp+ and is 70lbs lighter than the LT1. It is probably even lighter than a 13B and much lighter than a 20B. With heads/cam the engine will put out nearly 500hp flywheel rated. An all bore based 382ci LS1 with good heads and cam will put out 440rwhp and over 425rwtq all day long in naturally aspirated form on 92 octane pump gas. Any GM service center could service this bad boy.

 

There are obviously some misconceptions about the weight change with a V8, and the effect on handling. If you stuff a big block into an RX-7 it will definitely have some adverse effects for handling. Assuming you are building for the street, a small block Chev, Ford or even Mopar will not cause drastic changes in centr of gravity. Grant (Grannys speed shop) seems to think it is important to balance the car exactly 50-50 weight distribution. My opinion is that adding weight for that purpose is nonsense. There are all kinds of road and race cars that handle very well with significant imbalance. It is all a matter of suspension setup, tires, even tire pressures.

I chose a Ford 302. It weighs 75 pounds less than an iron block Chev 350, all things being equal. You can save 50 pounds with aluminum heads, 25 pounds with an aluminum intake, several pounds each for aluminum water pump and radiator. I did all those things, and I added 120 pounds to my 84 RX-7, most of that in the automatic trans which sits near the middle of the car. That is equivalent to having my girlfriend in the passenger seat.

Pros and cons - the Ford is lighter, has the distributor in front, but everything you change is potentiall a pain because the idiots at Ford constantly change things for no apparent reason. The Chev is heavier, has the distrubutor in back, which can cause clearance problems with the firewall. But parts interchange over a very wide span of years. If I had it to do over, I would buy a wrecked Mustang or Camaro and swap EVERYTHING, because I know it would all work together. patching together a lot of aftermarket hot rod parts and then sorting it all out is more trouble than it is worth in my opinion.

If you can afford to "go modern" with a late model aluminum block fuel injected engine, that is the way to go.

 

Bob;
Got an ETA on the arrival of your new flaming red frankenseven?
When you get it you should come to one of the eugene autocrosses and bury the misnomer that V-8 powered RX-7's handle like ***. I'll even drive it for you if your not confident in your abilities.

 

Gee, how will I ever learn to drive? Not by watching, that's for sure.

Thanks for the offer and you still get a ride in it.

Remember it's an automatic, so it probably wouldn't do well in an autocross. Maybe the quarter mile would be better suited for it. The three inch exhaust are only inches off the ground (according to the transporter).

ETA is this week, maybe next. It left Thursday from Florida.

Is the 13b still holding up? As long as you keep pops away from it, I guess it should.

 

I had to replace the oil control rings in it but other than that it is doing pretty good. It only had one inner control ring. Sucker smoked from day one. Now I'm fighting an oil pressure problem.
Should be sorted out soon.
The automatic wont hurt it as long as you can lock it in second. The V-8 should produce plenty of torque to accelerate out of corners despite it's automaticness. Most likley it will prove to be difficult not to overpower the tires on an autocross track.

 

so the 3 bagger starts and runs

 

Don't know. I just hit the starter and it turned over. The ecu's, fuel pump, etc., are not hooked up.

 

The transporter called me today about 2 pm. He is in norther california with one stop to make in Eugene. ETA of the 8-bagger is oh-dark-thirty.

 

It sounds pretty cool with those 3" dual exhausts.

It got unloaded at midnight.

The special equipment that was needed to offload the "lowered" RX7, and cost me an extra $200, turned out to be two wooden two-by-fours. Yah, a hundred bucks a board sounds about right...NOT! Thanks RoadTripTransport.com

The little oval light above the rear deck lid key hole, when lit up, displays "V8".

 

so where is the bad 7/8 at. I'll be there afther work

 

How's she drive?

 

Uh, fast?

 

I 'll be there with the pic taker after work, let me know if your goint to be there

 

New battery installed. New plugs, wires, cap, rotor, oil filter, fan belt, misc carb hardware all purchased and ready to go in it this weekend.

There is an exhaust leak, but the engine sounds pretty cool.

It was originally a power steering rack, now without the PS pump and it takes some muscle to steer it. I should swap out the steering rack and put back one out of a S4 that never had power steering. It's a bitch fighting that piston in the power steering rack when the PS pump isn't hooked up.

The engine mounts are hard-wired. No bushings to soften the ride/torque.

The 3.25" exhaust pipes leave only about two inches of ground clearance at their lowest point. Not too good for roads that are not totally smooth.

The electric fuel pump has a cut off switch and needs to be shut off when the car is parked or it will keep trying to pump gas. Good thing Gambone sniffed that out or it could have been a flaming catastrophy! Thanks Steve.

It starts in gear and the B&M shifter has a different shift pattern than the stock RX7 and took some getting used to.

Body needs a good polishing/detailing, but retail red is appropriate for the hot small block.

Tach is not calibrated correctly. Speedo is not connected.

 

well I was there and took some pic be given them to Bob saterday, O he also gave me a ridethe engine pulled a little rough but I did find my finger prints on the door handle

 

"I'm too damn lazy to read something that is grammatically based as apposed to blunt information so I figure I'll take the post of other people who write in such ways and shorten it because I'm just jealous of their linguistic skills." - Zach's translation. j/k

 

Hey guys, take it to the autocross track.
Then we'll see whos *** is going to get handed to whom.
Muwahaha.
Race is this sat and sun. Eugene.
www.eescc.org

 

You could write to impress your english teacher or write to get the message across. I'm an engineering student; my argument field is other technical minded people who want data, not a novel. RX owners like data, Miata owners like novels. For example, Dr. Keil, the king of going off on tangents during lectures (which cause him to rush through the meat of the presentation for lack of time), drives a Miata. You drive one of two modded FCs, time to start writing like a man!



*edit* I just love that sig gif, that guy was countersteering like mad but it didn't save him, bwahahahahaha.