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Engine Swaps Discussion of engine swaps.


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Old 10-17-2020, 12:12 PM   #15
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The article also mentions and shows the front cross member had to lower 1.9in to get it to fit..Because its too tall otherwise for the engine bay.
Look how far back they moved the engine. They cut the firewall to recess it back. If they didn't lower the engine then they would have lost the top of the firewall. Also, the engine doesn't look to be centered over the subframe, which means the subframe would need to be lowered to avoid the oil pan.

It looks to me like they wanted to move the motor as far back as possible, so they needed to make accommodations for that reason, which is more about their choice creating problems and less about the engine height.
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Old 10-17-2020, 12:45 PM   #16
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Look how far back they moved the engine. They cut the firewall to recess it back. If they didn't lower the engine then they would have lost the top of the firewall. Also, the engine doesn't look to be centered over the subframe, which means the subframe would need to be lowered to avoid the oil pan.

It looks to me like they wanted to move the motor as far back as possible, so they needed to make accommodations for that reason, which is more about their choice creating problems and less about the engine height.

Not really hard to imagine the clearance nightmare of having that engine 4" forward and without dropping the sub-frame.


For reference a 60 degree 3.6 v6 LFX in an 86 chassis. No sub-frame spacing. Nothing about the design of the VQ37 with its intake and TB locations leads me to believe it would more compact.

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Old 10-17-2020, 12:46 PM   #17
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They for sure did some work there to gain a more optimal weight bias for their purpose.
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Old 10-17-2020, 01:49 PM   #18
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Not really hard to imagine the clearance nightmare of having that engine 4" forward and without dropping the sub-frame.

For reference a 60 degree 3.6 v6 LFX in an 86 chassis. No sub-frame spacing. Nothing about the design of the VQ37 with its intake and TB locations leads me to believe it would more compact.
It definitely isn't ideal. It might require a hood modification, custom oil pan or custom intake manifold. Sometimes hoods get cut for budget builds.

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Old 10-17-2020, 03:47 PM   #19
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It definitely isn't ideal. It might require a hood modification, custom oil pan or custom intake manifold. Sometimes hoods get cut for budget builds.


Yes, I'm aware. That's what you do when the engine doesn't fit.
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Old 10-17-2020, 06:08 PM   #20
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My tuner, who is historically a Nissan tuner before getting into the 86 reckons that the Merc V6 is a good shout over the VQ. More availability should make them cheap and should be able to take some abuse.
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Old 10-17-2020, 08:01 PM   #21
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If we are going to make shout outs for other potential V6s then I would say that I would choose the V6 in our Audi Q5. It is the 3.0 supercharged 90 degree V6 that is in the S models, as well as, other models. Power delivery is very smooth and the engine looks great. Plus, I have a similar Eaton TVS supercharger setup in my BRZ.


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Old Yesterday, 09:32 AM   #22
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OK I'll chime in as well. Cadillac LF4, 450ish+ HP,, basically a twin turbo LFX. Packaging was done very well,,, and I think it would fit side to side. Exhaust would be tight I'd bet. It would stick through the hood more as the intercooler is on top. I've been following a few builds on and off,, electronics seem to be an issue.

Simple LSx swap probably still the way to go.. would of, could of, should of
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Old Yesterday, 07:07 PM   #23
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To circle things back on topic a bit...a VR30 has the same setup. These top-mount, water-to-air intercoolers can be easily relocated or switched to a front-mount, air-to-air intercooler:







I think another more obvious reason the VQ is not used in this chassis is because most might just buy a Z, which is heavier and different looking, but is much lighter than the pony cars where a LS is found or other larger displacement engines.
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Old Today, 02:26 AM   #24
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Of course, the Camry V6 wouldn't be bad just to keep the engine in the family. A Lexus IS/RC 350 variant of the 3.5L V6 could be used, and I suppose a manual transmission from the Tacoma could be used. I suppose the advantage of this motor, the 2GR-FKS, is the D4S system, which means there are cheap port injector upgrades for boost.
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