deshda

Ok, I dont want any flames or anybody telling me that i am ruining my car by performing this. i just need some questions answered. Thanks

1) What is actually required along the lines of fabrication? cutting, shortening, lowering?

2) How hard would this be for an inexperianced mechanic?

3) Transmission and engine choices. what is good? Im mainly doing the swap because it looks like it is a better buy for the money and I know a lot of experienced V8 mechanics who would help me. I dont want huge horsepower numbers; 200-250 is fine.

4) what about V6's? price? easier to put in? avalability?

5) What about engine swap convertion kits? Are they complete? Well made? Good instructions?

Well, I think that is it. Sorry it is a lot of questions. Im really new to this

rico05

www.v8rx7.com

deshda

I did that, but I wanted to get other peoples opinions

NZConvertible

No flame intended, but if that’s all you want, this conversion would be a serious waste of money. That’s not much more than a completely stock Turbo, and 250hp is only a few mods away and quite reliable. If you want 300+ the conversion starts to make much more sense.
www.v8rx7.com has a forum where you’ll get a lot more help than you will here.

deshda

yeah, that makes sense. the only thing is that the engine is blown and I would have to rebuild( which I havent the slightest idea where to start) or buy a new engine. From what I hear they get pretty steep. I dont have a big budget. I am also concerned about reliabillity. How often do rotarys brake, if properly cared for that is. are they easy to work on? cheap? I havent heard very good stories.(at least the bad stories far out weigh the good

Felix Wankel

Did you check the prices for the kits at Granny's?

deshda

yeah, from what I could see, the kit I would need would propably run about 1000. Is this right?

Just a little info on my cars:
I picked up 2 '87's and one '85, 2 13b's, 2 12b's five sets of factory wheels, and all shop manuals for $850. All seals are blown though. But every thing else works, from the power sunroof to the motorized antenna. Absolutly no rust either. Interior is ingreat shape except for the moulding.

SirRX7

I'm not a fan of the V8 swap unless its done right (see Jimlab). But if you're actually considering a V6 as a second choice you should really be smacked around. A V8 can be forgiveable but a V6 would be a waste.

Josepi

Not a turbo'd V6.

gnx7

iTrader: (10)

Like everyone has said in this post already..... if you only want 250hp then you should get either a low mileage 13B or a rebuilt one from one of the vendors. A stock 13B with exhaust mods and air filter will wake the car up.

If you want 300hp-400hp which isn't too hard with a V8 setup then you should take the plunge. Only past the 300hp mark will the V8 conversion be cheaper and worth it IMO.

Believe it or not.... but the conversion isn't that hard. Just time consuming and this was my first engine conversion also. Prior to this I had only changed oil/brake pads/tune up stuff! Having someone who knows more than you always helps.

I looked at the Granny's website for costs involved in doing a fuel injected V8 swap. Unless you are doing a turbo'd V6 don't waste your time with that:
$500 for engine+trans mounts/driveshaft
junkyard:
16" fan from a '93 or newer Ford Thunderbird $75?
radiator hoses $5
The rest you can get from Summit Racing online:
27.5x19" Griffen aluminum radiator $189
Walbro fuel pump $125
fuel line $100 (AN style + fittings)
air filter
headers

you can also run the stock radiator.... and get a better fan. But this will not suffice IMO.

Let's just say that is about $1100 right there.

Then you need a running engine. LT1 EFI engines with a T-56 6speed are about $3K in good condition complete from intake to oil pan with all accessories. You can either use the stock wiring harness and figure it out (add 2weeks to project and near madness in your head) or buy an aftermarket one with everything labeled and only a few soldering connections to make (add $450).

Then you need an exhaust system fabbed $200-400.

So for around $5K you will have a 315hp/375 ft/lbs tq LT1 (with headers/intake/chip upgrade/good exhaust). Sounds expensive right? Well you can port the heads and get a new cam and get 400hp for minimal investment if you have a friend help you port them. Been done before.

So this is the breaking point.... you can run a 13B near stock with some mods that'll cost $2-3K total and have a 250hp-275hp setup and only around 225ft/lbs tq. Or you can have for about $2K more a firebreathing monster that gets better MPG, easier to service, and can be upgraded in the future for ludicrous hp (600+) and be reliable still.

Obviously both setups could probably be done for cheaper or maybe even more.... but that is all in how much you get your own hands dirty. I like money... so I do what work I can myself.... or break a knuckle trying.

One guy did a Ford 5.0 EFI setup with T-5 speed for around $1200 total. It is all in the deal you can score and how tightly you manage your budget and how much $$$ you blow on performance parts.

Here is the messageboard for V8RX7 if you didn't find it:
http://www.torquecentral.com/vb225/f...?s=&forumid=11

GNX7

mazdaspeed7

This is really a bad place to ask that question. People here are too stuck on the rotary being the only engine worth messing with.

Go to the V8 rx7 message board. All of your questions will get answered there, without any flames, or getting peoples opinion on why you shouldnt do it.