Old car most needing engine swap?

coll9947 wrote: 32 ford hotrod with any modern 4 or 6 cyl with a turbo hangin off the side. i would do it -just- to upset the purists.

http://www.youtube.com/watch?v=7WwCmjdOL54&feature=related

I want to do this.

OOOOOO, I just thought of this.

A Trabi with a Speed3 power train!

miata motor into a Rx-7 ,anyone seen this done?

racerboy000 wrote: miata motor into a Rx-7 ,anyone seen this done?

No but why would you?

96DXCivic wrote:

racerboy000 wrote: miata motor into a Rx-7 ,anyone seen this done?

No but why would you?

It'd be nice to have an engine that could see coolant and oil temps over 210 degrees without disintegrating. The last time I had my engine apart (third time... this year) I found that my oil control O-rings looked like the rear main seal from an early 80's GM. Broken up and half missing, in other words. Running it out of oil also destroyed some bearings, which took out one of the side housings. I also blued the eccentric shaft.

First time I've done a rebuild where the only good parts left over were the apex seals and the rotor housings. I could have re-used the rotors with new bearings, but I had another set of "D" rotors sitting around with really nice bearings, so it got those instead.

I love rotaries, but the heat management issues really bother me. Not only do they produce a lot of heat, but they don't tolerate it either.

I'm running with the heater on full blast, shutting down immediately after a run, keeping the radiator fan on full time, starting and shutting off every so often to circulate the coolant and oil, just to get oil and water down to 180, and guys with other cars (Neon...) are leaving their A/C on even during runs....

so whats someone supposed to do with a rotten miata besides a locost

Knurled wrote:

96DXCivic wrote:

racerboy000 wrote: miata motor into a Rx-7 ,anyone seen this done?

No but why would you?

It'd be nice to have an engine that could see coolant and oil temps over 210 degrees without disintegrating. The last time I had my engine apart (third time... this year) I found that my oil control O-rings looked like the rear main seal from an early 80's GM. Broken up and half missing, in other words. Running it out of oil also destroyed some bearings, which took out one of the side housings. I also blued the eccentric shaft. First time I've done a rebuild where the only good parts left over were the apex seals and the rotor housings. I could have re-used the rotors with new bearings, but I had another set of "D" rotors sitting around with really nice bearings, so it got those instead. I love rotaries, but the heat management issues really bother me. Not only do they produce a lot of heat, but they don't tolerate it either. I'm running with the heater on full blast, shutting down immediately after a run, keeping the radiator fan on full time, starting and shutting off every so often to circulate the coolant and oil, just to get oil and water down to 180, and guys with other cars (Neon...) are leaving their A/C on even during runs....

So you want to trade a good sounding, powerful motor with odd issues, for a less powerful, no where near as good sounding engine, just for reliability (And fuel efficiency....)

I thought this problem was solved already? LS1/5.0?

Oh wait, need something less formulated: KL-DE/ZE? Or the cheaper, already rwd version: Suzuki H25A or H27A?

When instead you could trade to

Thaty's the problem - few piston engines have the torque curve and RPM range I'm looking for.

They put MZRs in Miatas, right? An MZR with independent throttles, 12:1 compression, and good rods should meet my power goals. There's your "Miata engine".

Unfortunately for that idea, I could blow up four or five more engines before I spend that much money.

Buddy of mine has been toying with the idea of stuffing an engine/driveline out of a GT2 into the ass-end of his Fiat. The only thing stopping him? The fact that the GT2 ass ends are expensive.

RA29 Celica with a BEAMS 3S-GE. Either that or a Vortec 4.3L.

510 with an SR20.

Mk III Supra with a 3S-GTE (a la the Tom's Mk IVs).

King Cobra II with the 3.7L V6 from the 2011 Mustang.

Z31 with an RB20DET (aka a 200ZX)

Knurled wrote: Thaty's the problem - few piston engines have the torque curve and RPM range I'm looking for. They put MZRs in Miatas, right? An MZR with independent throttles, 12:1 compression, and good rods should meet my power goals. There's your "Miata engine". Unfortunately for that idea, I could blow up four or five more engines before I spend that much money.

Mazda FE3? 2.0 litre DOHC 4 banger making 170hp, likes bolt ons and/or boost.

Mazda F2T? Sounds like E36 M3. build like a brick E36 M3house. Massive torque, will make more than enough power to turn a 1st or 2nd gen RX7 into death on wheels.

How about FWD Northstar Chevy Beretta?

How about cars that most need a manual transmission swap?

SVX (the 2.5 v 3l thread got me going..)

SMART

Jag XJS

Jag XK8/XKR

Jensen Interceptor

Audi Cab (the original cheap one)

Mercedes 500SL

Reatta

Allante

Mercedes 6.3/6.9

96DXCivic wrote:

racerboy000 wrote: miata motor into a Rx-7 ,anyone seen this done?

No but why wouldnt you?

fixed that for ya. turbo 1.8 in a sa/fb, mmmmm. everyone puts v8s in them, a fast four almost makes more sense

93celicaGT2 wrote: Mazda FE3? 2.0 litre DOHC 4 banger making 170hp, likes bolt ons and/or boost. Mazda F2T? Sounds like E36 M3. build like a brick E36 M3house. Massive torque, will make more than enough power to turn a 1st or 2nd gen RX7 into death on wheels.

The MZR (from the Ranger, anyway) with ITBs, a proper header, 12:1 compression, and decent rods, has been proven to be able to make 250hp from ~5500 to 8000rpm. Stock cams and head. Upgrade the cams and the torque curve doesn't fall off that much.

If I could even get 80% of that, I'd be really happy. Unfortunately, the stock rods are made out of compressed boogers or something and they can't handle much RPM.

The engine I just took out (in both senses of the term) made a minimum of 140 ft-lb (crank) from 3000 to 8000rpm with a peak of ~165ft-lb. I loved teh bridge port, it makes torque like no street port can. It had awesome power in the rallycross 3000-6000rpm range and it had another 2000-3000rpm on top of that to handle tirespin. So find me an engine that makes that kind of torque and is that RPM-lenient... the only thing I see that's inexpensive, is rotary. So I'm just dealing with the heat issues for now until the connecting rod tree bears fruit.

I am, however, seriously looking into GM V6/automatic options. One can shift an automatic much quicker than a manual, and you don't have to do any cha-cha on the pedals to do it.

a few thoughts for the GM ecotech turbo or super charged.

Use Cobalt SS engine and trans in a Fiero, or Soltice GXP motor and trans in a Vega. Atlas 4 and 5 cylinder would work here too.

Knurled wrote:

93celicaGT2 wrote: Mazda FE3? 2.0 litre DOHC 4 banger making 170hp, likes bolt ons and/or boost. Mazda F2T? Sounds like E36 M3. build like a brick E36 M3house. Massive torque, will make more than enough power to turn a 1st or 2nd gen RX7 into death on wheels.

The engine I just took out (in both senses of the term) made a minimum of 140 ft-lb (crank) from 3000 to 8000rpm with a peak of ~165ft-lb. I loved teh bridge port, it makes torque like no street port can. It had awesome power in the rallycross 3000-6000rpm range and it had another 2000-3000rpm on top of that to handle tirespin. So find me an engine that makes that kind of torque and is that RPM-lenient... the only thing I see that's inexpensive, is rotary. So I'm just dealing with the heat issues for now until the connecting rod tree bears fruit.

From what i understand (keep in mind that i don't have first hand experience with the FE3) that should be easily doable with that motor.

The F2T might be too much torque... We're talking 190ftlbs, stock, from about 2000rpms to almost redline. Letting it breathe makes for gigantic improvements.

Put it this way... i have an F2T in my challenge car, and in current state, is well capable of putting out 300+whp and 400+wtq. Stock motor, bought for $900, and happened to come with a car around it.

You'd be using 3rd gear a lot, though. Gearing is slightly short for a motor that doesn't rev above 6000rpms in factory tune. If you want to rev higher, get valve springs out of an 8v 4 banger Mazda truck, and megasquirt. (MSPNP exists for this motor)

Zombie thread!

I can't stop thinking about the kit that allows a WRX tranny to run backwards. So picture this: Take a WRX driveline and reverse it - rear engined AWD in a custom tube chasis and drop a Karmann Ghia body on top. Voila! Poor man's Porsche rises to a new level!