If you don't mind a non Nissan engine under the hood I believe the best value for money and can be fast engine is the Mazda/Ford 2.5 duratec .
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It can be natively paired with an mx5 gearbox/intake/ECU . Engine mounts have to be fabed
As a bit of a purist, I still believe that the L-Series motor is the best fit. That said, I think the EFI Dual Carb looking throttle bodies seem like a great option for people who want fuel injection. I have been waiting to see more “plug and play” EFI options for 4 cylinders to hit the market but it still seems like the V8 guys are winning that race.
The KA and SR may be the easiest options to install because of the huge amount of reference material available on the subject. The VG is a great option (having driven one) but with the kits becoming scarce you don’t hear much about them anymore.
The Honda K looks like a good fit but well…….. Honda. I’m not ready for “other make” power in my Datsuns.
A quick look on the internet yields only two RWD Nissans on the market. The Z and the Armada. If you want to stay with Nissan power it looks like options will soon be limited to converting FWD powerplants. Who wants to go first on popping the new Z power into a 510? I’ll do it if one of you will send me a new Z for the parts 😊
Nathan in NC
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It's a nice all aluminum modern engine,Ford still produces it(low mileage almost new can be found) and it can also make double it's na power in stock form if you are willing to go the forced induction road
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Impossible, he is too busy putting a turbo in a Miata 😊
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On Aug 9, 2024, at 5:52 PM, Dan Heil <mack...@gmail.com> wrote:
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Engines eh? The Honda K makes a ton of sense from a strictly engineering standpoint, but I too am a “must be powered by Nissan” guy (yet my son Carson and I have discussed a Toyota 4AGE for *his* 410, but that’s different).
Why no QR25DE mentions here? More displacement than the SR and KA, more modern, basically SR weight, VG30 (not DE) power, better MPG than all of them. I don’t care that it can’t rev to 7500RPM, It’ll beat the SR20/KA24 with just 6100rpm to play with. They’re available in wrecking yards all over the place, and you can still get parts from the dealer. They came in Frontiers (2005+) for the RWD orientation/transmission. You’d want the 2007+ versions as they have worthwhile updates.
If it were me, for 4-cyl I’d go QR25 and for outrageous I’d do VQ35DE. While VQ35\37HR’s are stronger and make more base power (~325hp) they are even taller so I don’t know if there would be fitment issues, height-wise.
VQ in a 510 - Do not keep the stock axle ratio and rolling diameter with the VQ 6-speed (get the CD00A, but I digress) transmission, that’s idiotic unless you’re drag racing with slicks. 6th in that transmission is shorter (.794 vs .752), the extra gear applies to 1st (3.794 vs 3.214A VQ35DE has more torque than Red until ~2700RPM, so you really are wasting potential with stock ratios in a 510.
I run a 3.36 axle, close to stock rolling diameter (until it runs again, new wheels finally) and even with the 3.2 1st gear it’s ridiculous. A VQ 510 with a 3.70 axle and a 3.7 1st gear? It will never hook up if you use more than probably 30% throttle (Red spins them with just over 45% throttle in 1st ,datalogging FTW).
Dave
From: blueb...@googlegroups.com <blueb...@googlegroups.com> On Behalf Of David Bliese
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This is why I recommended the ’07-later, their redesign was supposed to address those issues (I thought), but if you were seeing this on those too, then….
I *can* say VG30DE\TT is a dumb swap in 2024 though, nothing that can’t be done better with a VQ. TBH I do think there are scenarios where VG30E makes sense vs. VQ since it fits so well.
Dave
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90-92 Infiniti M30, 89-94 Maxima GXE, 89-91 Maxima SE, 85-88 Maxima (has a little kick out on it for more oil capacity though so you'll have to make sure that doesn't get in the way of anything)
I believe also the 200SX with the VG30E. Those are the ones I know of off hand.
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