It's time! Forshizzle!

[fatninja19]

Hey Demon.. I thought you said your friend will sell you a first gen rx7 for 300 bones. Did I miss something or what?

[Polygon]

Originally posted by RedNeck383


Well No duh the 302 can make more power than the 305. The 305 is like worlds worst V8 ever... it cant flow for a damn. The Ford 302 at least is bread to make power. The 305 was a means to an end of the gas hog V8s... it still sucked gas though.


Yes we know Ford motors can make power... but it [i]is[/is] cheaper to buy the bigger Chevy motors that make more power.

For Example...

You can buy a Ford 393cid Stroker from a 351W
465hp@6000 466tq@4500
Comp. Ratio 10.3:1
Cost $3995
Dollar Per Horsepower $8.5:1hp

Chevy 383cid Stroker from a 350
538hp@6500rpm
495tq@5000rpm
Comp. Ratio 11:1
Cost $4050
Dollar Per Horsepower $7.5:1hp

Now... there isn't much difference true in the price... but thats the closest comparison between two strokers that i'm willing to devote my time to looking for at the moment hahaha. Both are great buys if you're in the market but the Chevy makes the better Oomph for your dollar... and if you are in the market here are each motors specs...

Ford 393cid Stroker
Chevy 383cid Stroker


For fairness I'll throw in a Mopar Stroker...

Mopar 408cid Stroker from a 360
400hp@5000rpm
452tq@3000rpm
Comp. Ratio 9.9:1
Cost $5237
Dollar Per Horsepower $13:1hp

And thus proves my point that Mopars are just too expensive. But notice the Comp. Ratio is down a tad. Up the CR and up the Output...
Mopar 408cid Stroker

In all fairness for the Dodge people, the Mopar engine you included had a lower compression ratio than the others, and the 360 is an already bored 340. I would love to see you guys one up the Hemi. Yes they are expensive, but you get what you pay for. You have no limits with a Hemi.

[DemonZX]

Yeah, He said he had one in Daytona, but I don't know??? I located one a bit farther south, and it is in great condition for $700.

[-The Stig-]

Originally posted by Polygon


In all fairness for the Dodge people, the Mopar engine you included had a lower compression ratio than the others, and the 360 is an already bored 340. I would love to see you guys one up the Hemi. Yes they are expensive, but you get what you pay for. You have no limits with a Hemi.

Yes Polygon hehe.. If you read my commentary on that particular motor you'll notice that I mention the fact that it does have a lower Compression ratio. And as I also stated, up the Ratio and up the Output.

I dunno, Hemi's are nice and can make good power but for 10-12k for a 610hp motor seems a bit much. You can build stronger motors for less...
Mopar 528ci Hemi 610hp/650tq $12,995

Chevy 534ci 710hp/675tq $12,995

Ford 514ci 600hp/590tq $7,295


Note that these are only crate motors, you can build motors to do hell of a lot more for cheaper. For instance a buddy of mine built a 454, which is now a 468 and it pumps out well over 700hp. He built it for about $6000 total. Its all in the knowledge in where the power is. But if you're lazy like I am you just by a motor from a catalog :P

[Polygon]

Originally posted by RedNeck383



Yes Polygon hehe.. If you read my commentary on that particular motor you'll notice that I mention the fact that it does have a lower Compression ratio. And as I also stated, up the Ratio and up the Output.

I dunno, Hemi's are nice and can make good power but for 10-12k for a 610hp motor seems a bit much. You can build stronger motors for less...
Mopar 528ci Hemi 610hp/650tq $12,995

Chevy 534ci 710hp/675tq $12,995

Ford 514ci 600hp/590tq $7,295


Note that these are only crate motors, you can build motors to do hell of a lot more for cheaper. For instance a buddy of mine built a 454, which is now a 468 and it pumps out well over 700hp. He built it for about $6000 total. Its all in the knowledge in where the power is. But if you're lazy like I am you just by a motor from a catalog :P

Hey, I don't actually read posts, I just skim.

As for the 528 Hemi, I know of a guy that dropped one in and dynoed it at 706HP at the wheels right out of the crate, but yeah, the Chev engines do give the best bang for the buck.

[DemonZX]

WEll You Need to Start Damn READING---ASS!...Uh, sorry...J/K:licker:

[fatninja19]

What are the differences between the first and second gen rx7? Also, what kind of power can a the n/a rotary make with a low budget and pump gas? A friend of mine told me that he can get the engine rebuilt for me as long as I pay for the parts..

[DemonZX]

I don't know much about the Wankel's?! I'm gonna most likely drop in a 5.0 Mustang engine.

[Cbass]

Originally posted by fatninja19
What are the differences between the first and second gen rx7? Also, what kind of power can a the n/a rotary make with a low budget and pump gas? A friend of mine told me that he can get the engine rebuilt for me as long as I pay for the parts..

The first gen RX7, with the exception of the GSL-SE model, had the 12A rotary, it's pretty much a lump. Carbureted, 360 lbs, makes 100hp stock. With work, you can get them over 200hp, and it doesn't cost too much at all.

The second gen RX7 used the 13B, the same engine in the GSL-SE first gen. This engine is lighter, fuel injected, and is just a better engine for tuning. 200+ hp naturally aspirated. Once you get into turbos, the sky is the limit. That and engine life :hehehe:

The RE is a great power plant, but a piston engine is more reliable once you get into the 400hp range, and the RX7 is a great car to swap a V8 into.

[DemonZX]

V8=low end torque! CLick! Light car=lc no traction=nt A little algebra shall we!

V8+lc=nt this is usally a bad formula, but who could resist the frothy coloid of all that thick rubbery smelling joy we love to call a burn out!

[-The Stig-]

so... build up a V8 motor that makes minimal Torque and lots of high RPM Horsepower.

Chevy 283, and 302 come into thought. Or build a Ford 289, or 302.


Or... one of those 4.6l SOHC V8's they have in the Mustangs. The Cobra DOHC i'd assume would be too expensive to aquire. But maybe on of the SOHC 4.6's wouldnt be toooo hard to drag out of a junkyard?

I dunno its definately a thought though.

For the RX-7 application I'd say the Ford motor would be best. Even though I'm a Chevy guy, I can see a potential problem in the future of your swap. The distributor is located, as we know, on the back of the motor on a Chevy which may cause clearance problems with the firewall and maybe the hood. Not sure I've never seen a Rx-7 engine bay up close. Thus the Ford with its forward distributor would be a no-brainer install just from thinking about it.

And as we've all agreed on... the motors both can make more than enough power to push that car as fast as anybody would want go in something that small... next to maybe Mario Andretti...



Blah... enough typing.:silly2:

[DemonZX]

And as we've all agreed on... the motors both can make more than enough power to push that car as fast as anybody would want go in something that small... next to maybe Mario Andretti...

...OR?.....ME...CLick!

[Cbass]

AF ate my reply

Those SOHC Ford engines have a lot of potential, and are lighter than the stock 12A rotary. Downside, they're still a little pricey, and I don't actually know if anyone has done one yet in a RX7.