Which lightweight N/A V6 or H6 to choose?

[bradsm87]

Originally Posted by -Willis-86touge

This is the front sump diagram

That one looks like an AWD one. You can see where the shaft goes through it. The VZ Commodore has the sump part right at the very front and protrudes forward.

[johan]

I've enjoyed reading this thread. I would love to have an H6 in my car, but I'm definitely not motivated enough to make it happen.

I'm not posting this to argue or say the OP's idea does or does not have merit, but I thought I'd offer one more train of thought.

It seems it'd certainly be the easiest swap to just put a FA20DIT into the car. Yes I know it's not just plug/play, but it absolutely has to be easier than just about anything else.

And I'll just leave this here, stock vs tuned w/boltons + fuel



This is a stock engine / fuel system FA20DIT in a WRX with FMIC, DP, Exhaust on E55 fuel / ECUTek making 400awhp/415awtq... On a RWD platform where drivetrain losses are far less... It'd be pretty compelling.

This is the same setup on pump gas:



Again, with RWD level drivetrain losses instead of AWD drivetrain losses, this is pretty damned good.

I know it's not what you wanted, and I still think an H6 would be epic in this car, if only for the sound... power isn't everything.

[OkieSnuffBox]

Originally Posted by Lynxis

No one wants to do a V6 swap because why bother when for the same time, effort and cost, you can get V8 power but I understand where OP comes from.

For road racing, I'd have a hard time thinking a V6 wouldn't be the better engine for our cars. There are literally no downsides compared to anything else you can do. From the videos I've seen and blogs I've read, I feel like V8 torque overpowers our chassis and makes the car difficult to control which isn't something you want on track. That 300+ hp from a recent aluminium V6 would be lighter and more reliable than a FI FA20 and also dat throttle response.

There are certain challenges though. Not many have bothered with such a swap (see opening statement as to why) also the V6s are usually taller than V8s. Still, let us know how this goes for you OP, would be interesting to see.

Yeah, because all the Miata's with LS swaps are terrible to drive.

http://www.roadandtrack.com/car-cult...a-v8-nc-miata/

It's like half of you guys make stuff up just so you can post in a thread.

[Lynxis]

Originally Posted by OkieSnuffBox

Yeah, because all the Miata's with LS swaps are terrible to drive.

http://www.roadandtrack.com/car-cult...a-v8-nc-miata/

It's like half of you guys make stuff up just so you can post in a thread.

I have been on track behind an LS Miata and that thing was scary as hell to be behind. It looked like he couldn't so much as touch the throttle around a corner without sending the car sideways and when I talked to the owner after the session was over and he said as much. He wasn't sure what he was going to do about it and started talking about maybe doing a V6 swap instead which is where I came from.

Not saying the car can't be made to handle well but my personal experience simply wasn't such.

[Calum]

Originally Posted by Lynxis

I have been on track behind an LS Miata and that thing was scary as hell to be behind. It looked like he couldn't so much as touch the throttle around a corner without sending the car sideways and when I talked to the owner after the session was over and he said as much. He wasn't sure what he was going to do about it and started talking about maybe doing a V6 swap instead which is where I came from.

Not saying the car can't be made to handle well but my personal experience simply wasn't such.

Remapping the throttle shouldn't be too hard.

[Lynxis]

Originally Posted by Calum

Remapping the throttle shouldn't be too hard.

No idea, I didn't talk to him long because everyone was packing up but he definitely wasn't happy with it.

[Calum]

Originally Posted by Lynxis

No idea, I didn't talk to him long because everyone was packing up but he definitely wasn't happy with it.

At worst a final drive ratio change should be enough to tame such behavior.

[OkieSnuffBox]

Originally Posted by Lynxis

I have been on track behind an LS Miata and that thing was scary as hell to be behind. It looked like he couldn't so much as touch the throttle around a corner without sending the car sideways and when I talked to the owner after the session was over and he said as much. He wasn't sure what he was going to do about it and started talking about maybe doing a V6 swap instead which is where I came from.

Not saying the car can't be made to handle well but my personal experience simply wasn't such.

Just because the guy could afford to build a fast car, doesn't mean he had the skills to drive the car fast.

Everyone seems to forget this. I used to get point-by's from guys in ZL1 Camaro's in my 1.6 Miata.

There are plenty of guys that don't know how to drive, but can afford to buy serious machinery.

[-Willis-86touge]

Originally Posted by Calum

At worst a final drive ratio change should be enough to tame such behavior.

And that's kinda the point of a v6 why would you have a heavier car with power you cant use! If you change the final drive it makes a lot more of that power unusable. Who needs to drive 200mph. I know I don't. My father in law as a zr1 and I had it up to 180 and was sh***** my pants. Lol!! A good v6 should be able to perform just as well as the v8 up to 140mph with the right gear set and be lighter ta boot! Most tracks you won't even hit 140

[-Willis-86touge]

Originally Posted by OkieSnuffBox

Just because the guy could afford to build a fast car, doesn't mean he had the skills to drive the car fast.

Everyone seems to forget this. I used to get point-by's from guys in ZL1 Camaro's in my 1.6 Miata.

There are plenty of guys that don't know how to drive, but can afford to buy serious machinery.

True so for most a v8 would be too much.

[Calum]

Originally Posted by -Willis-86touge

And that's kinda the point of a v6 why would you have a heavier car with power you cant use! If you change the final drive it makes a lot more of that power unusable. Who needs to drive 200mph. I know I don't. My father in law as a zr1 and I had it up to 180 and was sh***** my pants. Lol!! A good v6 should be able to perform just as well as the v8 up to 140mph with the right gear set and be lighter ta boot! Most tracks you won't even hit 140

I agree, I actually really like the idea presented in this thread. But, that guy already has an LS swapped into his MX-5. At that point there's not much point in swapping in yet another motor just because he didn't tune the throttle correctly. I doubt a FD change would really be required, as long as the throttle was progressive enough. It might need some driver mod, though.

[Canehda]

If you look hard enough there are a bunch of porsche boxter S engines starting to come on the used market as a lot of the early cars had catastrophic electrical problems that made the rest of the car useless... I would get a porsche H6 over the subaru in a heartbeat as the porsche engine is lighter... engine swaps will be a huge pain regardless so why not have a porsche engine to show for it!

[OkieSnuffBox]

Originally Posted by Canehda

If you look hard enough there are a bunch of porsche boxter S engines starting to come on the used market as a lot of the early cars had catastrophic electrical problems that made the rest of the car useless... I would get a porsche H6 over the subaru in a heartbeat as the porsche engine is lighter... engine swaps will be a huge pain regardless so why not have a porsche engine to show for it!

Are these the same engines with IMS problem?

[EAGLE5]

I have not heard of Caymans totaled over electrical issues. Got a link?