[Tom in Austin]

I test drove a G35 coupe the other day, and boy is that Nissan V6 a great engine. From 3.5 liters it makes 298 HP, and when you stomp on it you get a real shove in the back. No waiting to run up a bunch of revs to make some torque.



Would it be blasphemy to fantasize about putting one of these in a 968?

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[kramermic]

As much as I don't really care for transplants from other makes, I would never consider this transplant. IMO, if you're going to do it, you might as well go for an ls-1 or ls-6....esp if you're looking for the torque.

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[ds968]

I absolutely love the looks of the G35 !



That being said, and back on the actual topic <img src="/forum/images/smilies/968/rolleyes.gif" class="smilie" alt="" /> that 3.5L, V6 & all the nice extra torque which gives you the shove in the back "feeling" is still not enough to outrun a 968 coupe with a chip ( $ 150 ), four holes in the airbox

( $ 0 ), and a top notch catback exhaust ( $ 500- $900 ) .. <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" /> well, at least not

in a quarter mile run and beyond, that is... it might edge it a 0-60 contest but

who cares ?



Must be the extra 500 lbs the G35 carries over our coupe weight, and the difference in gear ratios ?

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[earossi]

[quote name='ds968' date='Feb 7 2006, 11:56 PM']I absolutely love the looks of the G35 !   



That being said, and back on the actual topic  <img src="/forum/images/smilies/968/rolleyes.gif" class="smilie" alt="" />  that 3.5L, V6 & all the nice extra torque which gives you the shove in the back "feeling" is still not enough to outrun a 968 coupe with a chip ( $ 150 ),  four holes in the airbox

( $ 0 ),  and a top notch catback exhaust  ( $ 500- $900 ) ..  <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />  well, at least not

in a quarter mile run and beyond, that is... it might edge it a 0-60 contest but

who cares ? 



Must be the extra 500 lbs the G35 carries over our coupe weight, and the difference in gear ratios ?

[right][post="15678"]<{POST_SNAPBACK}>[/post][/right][/quote]





Exactly my sentiment. Having been involved in several transplants (mostly in the muscle car era......Corvette engines into a Benz 190SL and into the Jag XJ6 sedans), there are two absolutes for the average DIY project. First, there are a thousand minor issues that will occur..........like drive train resonance, impact of different weight transfer on a suspension designed for a different balance and center of gravity.....and on and on. Of course there are the zillions of custom brackets that will have to be made to fit just your installation. And, lastly, you can be assured that any transplant will demolish the value of your car! Most buyers will shy away from a sports car that even has simple mods such as the airbox mod, a chip, or a custom exhaust, because of a perception that such mods result in abuse of the car.



So, if you are thinking transplant............and want low end performance...........remember the old hot rodder adage............there just is no substitute for cubes! I would stuff a small block Chevy or Ford V-8 into the car and be done with it. The Chevy powerplant would be a lot less expensive than the Nissan 3.5 liter engine........and I'm positive that with over 5 liters of engine, you would be more impressed with the low end performance!



Just my two cents.

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[ds968]

[quote name='earossi' date='Feb 8 2006, 04:13 AM']and I'm positive that with over 5 liters of engine, you would be more impressed with the low end performance!

[right][post="15683"]<{POST_SNAPBACK}>[/post][/right][/quote]



that's an understatement.. <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" /> - 5 L / V8 would turn the 968 into a catapult !

but as you said, why butcher a Porsche in that manner ? Buy a Corvette or some other muscle car if your intent is to have fun blasting from stop light to stop light.. <img src="/forum/images/smilies/968/cool.gif" class="smilie" alt="" />

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[flash]

if you were just after stop lights, nitrous would be the quickest, cheapest, easiest way to get there



engine swaps in general, done right, are great fun to drive for about the first year - then the complications generally pop up - things like what earossi is talking about are very common in such things - i've done a few myself, and driven quite a few more - somehow it just never seems to work out quite right in the long run - i don't tend to see a lot of people keeping those cars for very long



i think the biggest issue is balance, handling and braking - weight transfers and stresses from a stronger engine are difficult things to work out - it takes a lot of suspension and brakes to haul down and make handle, a car with that much power



once you get it right, it comes down to your willingness to tolerate the anomolies - does the fun factor outweigh them? that's a very subjective and personal question



for his car to adequately handle 400hp, and more importantly big torque, and be safe, you would need MUCH better brakes, and probably have to redesign the current beetle/rabbit suspension to something with unequal length control arms - the side loading that that much power can bring on in a corner is very likely to exceed this design's capabilities - i've already had to change out all the rubber bushings to spherical bearings, just to handle what it has now - if i start pushing around that much more power, i expect things are going to snap and break, pretty much along the lines of what breaks in race cars



i know a lot of guys are out there with cars with that much power, and haven't done most of that stuff, but i just can't imagine the car lasting long - take a look at any factory car with that much power, and then compare componentry - suddenly what i am saying will be very evident



sure would be fun though

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[Jason Judd]

As they are prone to say...



"There's no replacement for Displacement"



Jason

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[flash]

yeah - carrol used to say "no substitute for cubes" and referred to the cost as "cubic dollars"

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[earossi]

Not to drift too far off the topic, I remember one transplant I worked on with a guy that was totally outrageous. He had transplanted a Chevy small block into an MG TD. The engine developed so much torque that when you popped the clutch the car would literally twist enough to raise one of the front tires about three inches off the ground! He never measured his time to 60.....but the car was a rolling suicide wagon. In the end, he got tired of the transplant in about 3 months and sold the car for about half of what he had paid for it.......not including all the money he spent on the conversion.

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[flash]

oof - it's a pretty common tale though



we had a blown small block ford do the same thing in a 944 the first time we lit up the tires - stayed that way too - danged funny



the fiat with the 302 kept popping rear ends



the mgb with the 302 was putting dents in the hood when the frame would rip



the vega with the blown and stroked chevy small block, well, that was just plain good for nothing but 9s and pissing off camaros - horrible car to drive,but with a total investment of 5k, it was a lot of laughs



the bug with the turbo 911 motor had a hard time keeping front ends on the ground, and couldn't stop for a darned



the scarab 240Z kit with the 350 was decent, but handled oddly - could never really get the back to stay put, and brakes took a lot of work



the datsun 510 with the buick 215 was fun, but gearing was all wrong, so no top end



as much fun as some of these cars were, none of these cars stayed with their owners for very long, and they all lost their shirts when selling them

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[ds968]

[quote name='earossi' date='Feb 8 2006, 05:29 PM']but the car was a rolling suicide wagon. 

[right][post="15721"]<{POST_SNAPBACK}>[/post][/right][/quote]





<img src="/forum/images/smilies/968/laugh.gif" class="smilie" alt="" /> <img src="/forum/images/smilies/968/laugh.gif" class="smilie" alt="" />

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[Harvey]

While going faster is great...stopping is just as important...as someone suggested, beefed up brakes are essential with more hp as the forced induction 928 people are finding out. Braking is under rated.



Harvey

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