I had my V8 converted RX-7 weighed.

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Old 01-13-02, 03:31 PM
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not bad

whats HP of that baby, and what 1/4 time can it be expected to run? My dad has a 327 block from a 67 vette I would consider building if my 13B would ever blow
Old 01-13-02, 04:04 PM
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Good Job man, I think the car looks very nice. **** what anyone else thinks of "Your" car..Most of the ones bitching are driving a slow *** N/A anyways and are probably just jelous. Thats what bitching is, Jelousy.
Old 01-13-02, 05:23 PM
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Originally posted by DEEPERIMAGE.COM
Good Job man, I think the car looks very nice. **** what anyone else thinks of "Your" car..Most of the ones bitching are driving a slow *** N/A anyways and are probably just jelous. Thats what bitching is, Jelousy.
I wish I had a dime for every time I heard somebody call my car slow. I don't fall into the "bitchers" category that you so eloquently describe, but hearing about how slow my car is over and over again does get a bit old.

I guess you can't get any respect from the "big dogs" until you're blingin' in an FD.
Old 01-13-02, 05:46 PM
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VERY nice work. I like it a lot. Nice choice of engine also. I have always thought about this swap. If it were me, I'd probably go for a Ford 4.6L V8. I just love the smooth power band. While I love the rotary engine, I have always had a soft sopt for American V8s, so I see no problem with this swap.
Old 01-13-02, 05:49 PM
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A V-8 in an RX7 is kind of like putting a Harley engine in a Hayabusa, you'll have a cool vehicle but you won't really be accepted by the the Harley guys (domestics) or the Suzuki guys (RX7 people) but if you don't care about that, then cool. Thats one of the nicest convertibles I've seen, and are those Konig Monsoons I see?
Old 01-13-02, 06:36 PM
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Originally posted by Felix Wankel


When are you people going to learn ITS NOT YOUR GOD DAMN CAR??

He can do what he wants with it.

How come people drool over a 20B swap, but **** on a V-8 swap?
Easy !

It's because people here are passionate about rotaries, some others are not !

I along with the passionate ones cannot give a **** about a V8, end of story! However this guy should be comended for showing us his conversion and not being an idiot about it and offending us by saying how much better it is than a rotary engine, I take my hat of to him for this and think his car is nice.
Old 01-13-02, 08:53 PM
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Originally posted by DEEPERIMAGE.COM
Good Job man, I think the car looks very nice. **** what anyone else thinks of "Your" car..Most of the ones bitching are driving a slow *** N/A anyways and are probably just jelous. Thats what bitching is, Jelousy.
N/As can be made to be fast genius. We can't all be as fast as you though, lol. I could have bought a turbo if I wanted to, but in my opinion they aren't suitable for daily driving.

your average slow *** N/A driver.
Ike
Old 01-13-02, 09:06 PM
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I'm sure a lot of N/A's could set your turbo straight. You're starting to sound like the V8 haters, only towards N/A's, what's with that?
Old 01-13-02, 09:07 PM
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Hey BlackSport, you ever been down by the Medford area? I lived there for a while, definatly a nice place! Thinking about heading out there when my girlfriend goes home for the summer. Maybe we could meet up and argue about the v8 conversion!
Old 01-14-02, 12:54 AM
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Originally posted by InfiniIIIREX
A V-8 in an RX7 is kind of like putting a Harley engine in a Hayabusa, you'll have a cool vehicle but you won't really be accepted by the the Harley guys (domestics) or the Suzuki guys (RX7 people) but if you don't care about that, then cool. Thats one of the nicest convertibles I've seen, and are those Konig Monsoons I see?

Actually domestic guys can't stop giggling when they see my V8 FC. Even some RX guys get a smile on their faces when they see it, unless we race or course. Then they frown haha
Joke!!! I repeat Joke!!!! I dont want any tears
Old 01-14-02, 12:57 AM
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UHM heres a question. Mainly just to play devils advocate while I am waiting on a stripe set to repair.

IF his V8 is only 130lbs heavier than it was with the 13b, what would a LS1 do in a Rx7 being as its over 220lbs lighter than the cast iron blocked engine he put in? wouldn't that actually make an RX7 rear biased as far as weight goes? also the extra mass being higher would not really matter since its actually less weight over all.
Old 01-15-02, 03:52 PM
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Originally posted by SonicRaT
Hey BlackSport, you ever been down by the Medford area? I lived there for a while, definatly a nice place! Thinking about heading out there when my girlfriend goes home for the summer. Maybe we could meet up and argue about the v8 conversion!
That would be cool man. You could meet the local RX-7 following that I'm helping to create. I'd been down for kicking your *** in that argument, lol, just kidding.

Later bro,
Ike
Old 01-15-02, 07:12 PM
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Originally posted by supergoat
VERY nice work. I like it a lot. Nice choice of engine also. I have always thought about this swap. If it were me, I'd probably go for a Ford 4.6L V8. I just love the smooth power band. While I love the rotary engine, I have always had a soft sopt for American V8s, so I see no problem with this swap.
The problem wiht the 4.6 OHC engine is that it's physically as large as the old 460 big block. In fact, it's a bit wider, due to the cam placement. It would offer greater weight issues than the SBC or SBF. There's enough physical room in there for it, but I don't see it as being as viable a swap as the 5.0 (and it's more expensive, too).
Old 01-15-02, 08:58 PM
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Originally posted by SonicRaT
I agree, nice work on the conversion. I'm tired of everyones quick to hate dumbass remarks against v8 conversions, if the rx7 is 'such a work of art' then I guess half the people on the forum ruined that with their bumpers/sideskirts and custom exhaust, thats like saying stealing is ok if nobody loses from it, but stealing is stealing, or is this just some lame excuse to make yourself feel better? Nice job on the conversion, if I didn't want to experience work with rotors, I'd do the job regardless of what pissants think should be done to my own car. Nice job, and drive hard! My rusty old chevy can do quarters in 13.6, I'd die to see what it could do in a car weighing 1,300lbs less! [/B]

Flames are NOT permitted. Warning #1

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Old 01-15-02, 09:08 PM
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Originally posted by V8RX7com
The convertible RX-7 is the heaviest car the 13B was ever used in. The US market was the only market in the world where the convertible did not come stock with a turbo (meaning Mazda knew it was underpowered, but the US has too many tree huggers, so Mazda had to drop the turbo for the US market) I was growing tired of my RX-7 with the stock high mileage rotary with loud annoying exhaust (Racing Beat no cat setup) getting beat up by guys in stock lowered Honda civics with coffee can exhaust. I wanted something quick, quiet, and cheap to maintain. I used to get laughed at by the riceboys as they blew by me, now I give the guys in Porsches a run for the money. I see a guy in this forum putting in a 13B into a Spitfire, which I think is cool as hell (powerful motor in a light car) all I have done is take a heavy car (convertible RX-7) and put in a more powerful motor in it (Chevy 5.7 Tune Port Injection), and this is called stupid? It's been a lot of work to get this motor in there and have it work right (so it's not for everyone) and I agree that the Rotary engine is part of what made the RX-7 unique, but my car gets a lot more attention now then it ever did with the Rotor motor and if I could afford to put in a 20B in instead of the V8, I would have.
I think you did a nice job on the conversion. I'm not a fan of V8 conversions, but that looks pretty clean. Now, on to a couple of points.

1) I think you need to take a good look at your corner weights. It appears that there is some uneven wear or perhaps damage on your suspension, to throw the diagonal weights off that much. It COULD be a safety issue, so I suggest checking it out.

2) You did a good job of maintaining the overall balance, and I for one would like to drive it to see what it feels like. A convertible was the ideal candidate for this, as they actually have a slightly REARWARD weight bias in stock form. Did you retain the A/C, P/S, etc? (I can live without the P/S, in fact I don't like it... but A/C is a MUST HAVE in Texas in the summer!)

My convertible has a TII transmission and differential... and the smaller convertible rear swaybar was replaced with the TII unit. It's more balanced that way- I think the convertible was "tamed" a bit more than I like for the average driver- it isn't AS balanced as the coupes... probably trying to decrease accidents in the topless version, by making it understeer. The TII bar on the rear brings it into pretty good balance, it doesn't seem to want to oversteer, but I haven't pushed it THAT hard since I swapped those parts- it might be tail-happy at the limit. IF so, I'll change the front bar and adjust tire pressures...
Old 01-16-02, 10:18 AM
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did you *actually* weight the car BEFORE you performed your act of vandalism against that FC? Or are you going on the skewed factory data that Mazda provides?

btw, what hallucinogen prompted you to mar an RX7 in the manner you did? Why V8 an RX7? Why not a Mini? Or a Push Bike?



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Old 01-16-02, 11:46 AM
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Perry, have you bothered to read any of the reasons why? It's been gone over to death. I'm really tired of people like you not paying attention in class...
Old 01-16-02, 11:48 AM
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Originally posted by Perry Gehenna
did you *actually* weight the car BEFORE you performed your act of vandalism against that FC? Or are you going on the skewed factory data that Mazda provides?

Oh, BTW, it was weighed after, as was mine. It matters not what it weighed before, as there are many here who know how much the stockers weigh. Direct comparisons can still be made, quite easily, without using the "skewed" factory data (and where do you get THAT inanity from?).
Old 01-16-02, 01:18 PM
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At the end of the day its your car to do with as u wish.

You are on a Rotary Forum so dont be suprised when ever one takes the ****. I personly love the sound of a V8 and if properly tuned are very powerful but its just not my thing.

The car does look good though good luck with it and post some 1/4 times when u get down there.
Old 01-16-02, 03:26 PM
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did you *actually* weight the car BEFORE you performed your act of vandalism against that FC? Or are you going on the skewed factory data that Mazda provides? btw, what hallucinogen prompted you to mar an RX7 in the manner you did? Why V8 an RX7? Why not a Mini? Or a Push Bike?
At first I just laughed when I read this guys post, but then I noticed he was from Australia...... then I started thinking maybe it’s just a matter of prospective depending on where you live. I live in Southern California where the RX-7 FC is not a rare or exotic vehicle. However here in California we have some of the toughest emission laws in the world. When it came to the performance of my RX-7 convertible I wanted to be able to drive it “legally” in California and not have to worry about getting pulled over and getting the car impounded for “illegal modifications” .... and yes some cops here will pull you over and check if they suspect something. It boiled down to 3 options for me,

#1. Learn to live with my stock legal N/A rotary powered convertible for what is was (slow)

#2 build the Rotary “illegally” to be quick but then be paranoid of cops and also not be able to pass state required emission tests resulting in a car that I could not register.

#3 Find a loophole in the law (like dropping in a V8)

I chose # 3
Old 01-16-02, 07:00 PM
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First off, to V8RX7: Great work. It takes some serious cajones to cut up a beautiful car like that for an expensive and time-consuming project with no real gaurantee of success. Second, I applaud you not only for getting through the misinformation and creating a one-of-a-kind, slick-*** beast of a ride. Ignore the wailing of the purists. It's your car, not theirs. Let them build concours cars if they want.
To all the flamers and haters: Get over it. There is no "sacred car". The RX7 is an incredible piece of Japanese engineering, but that doesn't mean it can't be improved. We still haven't heard how this thing does in a slalom or road course. Until we have a report on what it does in the real world, all this talk about destroying the handling is just a bunch of wanking. He's lowereed the cg with the aluminum heads, and it looks like the motor sits plenty low anyway. How is this worse than the power sunroof in most of the upscale models? (I believe they usually add about 80 lbs up in the roof)
Really, guys. give him credit and let's reserve any harsh judgement until we can spank him on a track.
Old 01-17-02, 09:27 AM
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<looks at the ground, looks at the sky>
yes. Yes, that is eminently logical. fair enough. good job man.
the EPA (our emissions police) are not nearly as strict as the emissions police in California, tho things are starting to get heavy.
We *have* been basically getting away with running what-soever-the-**** we want here in Oz (vic) up until fairly recently.

whatever,
Perry Gehenna
Old 01-17-02, 11:02 AM
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Originally posted by ScrapFC

To all the flamers and haters: Get over it. There is no "sacred car". The RX7 is an incredible piece of Japanese engineering, but that doesn't mean it can't be improved. We still haven't heard how this thing does in a slalom or road course. Until we have a report on what it does in the real world, all this talk about destroying the handling is just a bunch of wanking. He's lowereed the cg with the aluminum heads, and it looks like the motor sits plenty low anyway. How is this worse than the power sunroof in most of the upscale models? (I believe they usually add about 80 lbs up in the roof)
Really, guys. give him credit and let's reserve any harsh judgement until we can spank him on a track.
Thanks for the comments!

To bring over something I said newr the end of the last thread:

We know the V8 weighs more than the rotary. The truth is it's not that much more, and with a little thought into it, the finished conversion will not upset the chassis. IF it can handle a fully loaded TII's weight with no problems, it can handle a non-loaded V8 with ease, and without upsetting the handling. You say it's comparing apples and oranges. I say it's what the chassis has to deal with. If it can handle a 2800lb stock TII, it can handle being a 2800 lb V8 car, when care is taken to remove some weight during the conversion, and shuffle around the rest (like the battery). No one I know who has done a conversion has NOT taken those factors into account. If you know someone who DID hack it together without thought, please show us. Yes, you can remove weight on the rotary version, too. But the point is, if the stocker works with suspension mods and no lightening, then the conversion will work as well at the same weight.

My personal modded '86 Sport model weighed 2720 after the conversion, with a 49/51 split f/r. As you said, the sunroof on a GXL or turbo adds more weight up top, so polar moment and CG are not that bad on a car not so equipped(look how low the engine sits in my car, in the pics I posted). My car pulled over 1 G before and after the conversion, and was, on street tires, in street trim, only a second behind the gutted RX7 on slicks now driven by Gretchen Everett in the NW SCCA region, and was driven to 3rd place in E-mod at the SCCA nats the year I was competing against it in the NW. Judging by my consistent results agains that car all year, I have no doubts that I could have placed in the top 5 in E-mod at the nats. On street tires. Yes, I can tell you that with a little care in setup, the car handled just fine. Again, if I can convert these Hi-8 videos, I can show people the car at an autocross...
Old 01-24-02, 12:06 PM
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Originally posted by Perry Gehenna
<looks at the ground, looks at the sky>
yes. Yes, that is eminently logical. fair enough. good job man.
the EPA (our emissions police) are not nearly as strict as the emissions police in California, tho things are starting to get heavy.
We *have* been basically getting away with running what-soever-the-**** we want here in Oz (vic) up until fairly recently.

whatever,
Perry Gehenna
I know what you mean, here in Oregon (in Eugene anyway) you can run whatever the hell you want. We have no emissions testing whatsoever. Hope it stays that way until I am too old to care.

IKe
Old 01-30-02, 01:46 PM
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first why are on this forum you took out your rotary thats half the fun of owning a rx-7 and second you dont put your corn burna engine in a import you suck.


Quick Reply: I had my V8 converted RX-7 weighed.



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