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Old 03-29-2011, 04:53 PM   #21 (permalink)
Making Ecomods a G thing
 
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Quote:
Originally Posted by some_other_dave View Post
Flipping the diff means that the "wrong" rotation is still going through the transmission and drive shaft (or whatever drive mechanism). Running a transmission "backwards" is not a good idea, unless you've got one that is designed to survive spinning both ways. -soD
Sorry, yesterday was a long day, i didn't even think about thrust bearings and gear types.

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Old 03-29-2011, 05:00 PM   #22 (permalink)
Making Ecomods a G thing
 
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if it wasn't so expensive i would say get one of these, though the power is much lower than you are looking for

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Old 03-29-2011, 09:18 PM   #23 (permalink)
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Have you considered some of the old pre ecotec gm 2.2L that put out 120hp got good milage had a friedn with a 97 cavalier that got 6.4L/100km out of the 5spd and the thing had 400,000km on it. There is also the GM D-Tech Motor it is korean out of the Chevy optra/ Suzuki Reno the odd thing is that in Canada the Optra is detuned to 119hp and in the US the Reno is at 127hp. If you want a bit more grunt there are the Celica 1.8L non GTs motor rated at 140 or the GTS motor which can be found in the XRS corolla which puts out 180hp. If you wanted you could try and track down a Civic CX motor. There is also the GM 2.4L out of the Sunfire GT/ Cavalier Z24 that puts out 150hp and 155lbs or torque. There are a few domestic options with Chrysler and Dodge with the neon engins ie the early 2.0L that puts out either 136 or 150hp both can be found relativly cheep.
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Old 04-01-2011, 11:31 PM   #24 (permalink)
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Quote:
Originally Posted by Creeper View Post
...If you wanted you could try and track down a Civic CX motor....
Unfortunately, that is another older Honda motor, which spins the "wrong way".

-soD
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Old 04-08-2011, 02:28 PM   #25 (permalink)
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Quote:
Originally Posted by Creeper View Post
Have you considered some of the old pre ecotec gm 2.2L that put out 120hp got good milage had a friedn with a 97 cavalier that got 6.4L/100km out of the 5spd and the thing had 400,000km on it. There is also the GM D-Tech Motor it is korean out of the Chevy optra/ Suzuki Reno the odd thing is that in Canada the Optra is detuned to 119hp and in the US the Reno is at 127hp. If you want a bit more grunt there are the Celica 1.8L non GTs motor rated at 140 or the GTS motor which can be found in the XRS corolla which puts out 180hp. If you wanted you could try and track down a Civic CX motor. There is also the GM 2.4L out of the Sunfire GT/ Cavalier Z24 that puts out 150hp and 155lbs or torque. There are a few domestic options with Chrysler and Dodge with the neon engins ie the early 2.0L that puts out either 136 or 150hp both can be found relativly cheep.
Yes, I've considered especially the multiport 2.2. Lots of those GM motors have EASY RWD trans options (except for the quad4 but just add a couple extra $ so I do like them... but a bit on the big side, displacement wise. I do have a fiero sitting and if one turned up for the right price, that would certainly be an easy 35-40++mpg on the highway and almost zero fab work required. When I had a fresh drivers license I racked up many miles between the fiero and a 2.0 cavalier so I do have some experience there.

The celica 1.8 non-GTS motor is also a good candidate. I think I'm "settling" on the echo/yaris/XB 1.5 because of cost/availability, but I can also see building more than one car.

The parts have started to come in for me to test out the datsun A15/5 speed set I have... into the S13 240sx hatch. Need to extend the shifter back about 6". Transmission slip yoke is on the way, and I scored one of the oddball mitsubishi MPFI intakes that with a bit of massaging (spacer plate plans have already been sent to the water jet man) will fit said A15. I more want to try this motor now out of principal since I've had 2 people say "how fast will it go, 60 max?" Hehe if I have 10-25 more HP than the gas motor in a 1g Prius... I think it'll be just FINE on the highway, once it gets there!

Thinking if the A15 gets really good mileage once it's injected, I can drive it while I work on the yaris setup. Then move it over into one of the "toys" and stick the yaris setup into the 240. I'm optimistic that the yaris motor in a base 240sx hatch with removed PS, no AC, etc might end up being even lower in weight than a Miata.... suggesting that it won't be that unpleasant to drive as far as acceleration goes.
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Old 04-15-2011, 11:20 AM   #26 (permalink)
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Bought a set of ~3.5:1 gears to stick into an extra S13 240SX diff. (4.08 are common/stock) Good for a high-torque engine swap should I do one at a later time... and if the little motor I stuff into this one seems like it can pull the load with that much more gear, I'll give it a try.

In my opinion this has given my S13 a firm advantage for the MPG project over doing the same engine/trans swap to the RX-7.
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Old 04-15-2011, 02:13 PM   #27 (permalink)
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The Honda S2000 spins the right way. Even comes with a RWD transmission - the transmission is big though. I am sure you know of this site already, but have you checked LocostBuilders There's a ton of useful information there..

If you want good fuel efficiency, the Super 7 is a pretty horrible choice though. It has some of the worst aerodynamics you could imagine, and would need quite a bit of redesigning to improve that..
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Old 04-15-2011, 02:59 PM   #28 (permalink)
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s2000? He said budget.
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Old 04-15-2011, 03:13 PM   #29 (permalink)
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Quote:
Originally Posted by akumabito View Post
The Honda S2000 spins the right way. Even comes with a RWD transmission - the transmission is big though. I am sure you know of this site already, but have you checked LocostBuilders There's a ton of useful information there..

If you want good fuel efficiency, the Super 7 is a pretty horrible choice though. It has some of the worst aerodynamics you could imagine, and would need quite a bit of redesigning to improve that..
The F20/F22 in the S2000 are certainly nice power wise... but far from budget A K could be as capable/more capable and better priced, even after the work to mate it to something RWD. In an interesting coincidence, S2000 owners are swapping K motors into their cars for more power / even better parts availability.

I'll certainly poke around locostbuilders. Thanks! I've been lurking at LocostUSA.com • Index page for years. ENDLESS fabrication Pron.....

Yes, the aero is usually bad on a 7.... but can be fixed. My first short term goal is getting one of these swaps into an aero friendly 240sx or RX-7.... Then one into either my datsun 1200 or a fabricated locost.
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Old 04-23-2011, 12:53 AM   #30 (permalink)
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Theres a place in texas that has brand new fully dressed 1996 ford aspire 1.3 motors.

i think that would be a great choice given the block and bellhousing bolt pattern is identical to the 1st gen mazda miata.

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