Engine Swap: Which Would You Choose!??

[ZDan]

Originally Posted by serialk11r

You think 2 liters is not a compromise ZDan?

What gave you that idea, was it where I said:
"*ALL* cars are compromises, *ALL* engines are compromises."

The only reason they made the F20C 2L was because Japan has displacement tax. If they wanted no compromise they would've given it a bigger bore from the start.

No, they would have done the 2.5 liter I-5!

Don't get me wrong, the S2000 is awesome, but it's definitely got a bit of a conflict in design philosophy. It's like a racecar on one hand with extremely short gears, fantastic performance, on the other hand it's massively handicapped by a displacement chosen for tax reasons. No replacement for displacement is sadly true.

I think it's the best sports car on the market since the 240Z. 240hp isn't much of a compromise for a street car if you ask me.

[serialk11r]

Okay, or an I5. But really, strictly speaking if you can enjoy the full power output of an LS2 then a displacement bump on an F20C should be very welcome, not saying that it's necessary of course.

[old greg]

Originally Posted by Dimman

32v ohv SBC??? Could they fit in 16 more pushrods? Or split the rocker arms to push 2 valves? Someone somewhere must have tried this...

Super compact large displacement with better filling, cam phasing be damned.

Yep.

[u2b]vRKTRLD2h8k[/u2b]

[Dimman]

Originally Posted by old greg

Yep.

[u2b]vRKTRLD2h8k[/u2b]

Now only if they weren't $7500-8500...

[ZDan]

Added cost, added weight, added size. Wonder if it'd still fit in an FD or an S2000 or a C6 for that matter?

The great thing about wedge-chamber 2vpc OHV V8s is their relative small size, light weight, simplicity. Complexifying it doesn't really appeal to me...

[LSxJunkie]

Originally Posted by Dimman

32v ohv SBC??? Could they fit in 16 more pushrods? Or split the rocker arms to push 2 valves? Someone somewhere must have tried this...

Super compact large displacement with better filling, cam phasing be damned.

Split rockers. I'm not a huge fan. I like the simplicity of the 16v heads, especially at 12* like the LS7 heads. Plus those heads are HUGE.

[Racecomp Engineering]

Originally Posted by 3MI Racing

I'm hoping he meant the Coyote

Clearly I meant this guy:






Or I just had a really terrible song in my head.

- drew

[arghx7]

There a plenty of 4 valve per cylinder diesel pushrod engines. Obviously diesel truck engine applications are different from performance car applications.

[Night Hawk]

Supercharged Corvette engines? In this car? Don't make me laugh. Here is only one engine I would consider to swap into the FT86;



http://fordracingparts123.com/index....products_id=85

• 444 horsepower and 380 lb.-ft. of torque without the aid of forced induction
• Purpose-built Boss engine is based on production 2011 Mustang GT 5.0-liter DOHC V8, heavily modified with unique, Boss-specific parts to withstand all-day thrashing
• Revised intake, CNC-machined heads, lightened valvetrain and strengthened reciprocating assembly result in a race-proven engine meeting production durability standards

“In keeping with the spirit of the original, the new Boss 302 engine achieves its maximum power output at speeds at or above 7,500 rpm. Unlike the original engine, however, low-speed torque and driveability are uncompromised thanks to twin independent variable camshaft timing (Ti-VCT) technology and computer-aided engineering design tools.”






Forget about the 5.0 liter V8 from the IS F (2URGSE)! The 5.0 from the Mustang Boss 302 is more powerful, lighter, less expensive, WAY more durable and reliable, and with even better street manners. In fact he same can even be said for the "base" Coyote 5.0 from the Mustang GT. And the best part all that power without the need for forced induction. Also if you consider that the Boss 302 is EPA rated at 26mpg highway avg while weighing in at ~3,650 lbs (and with a 3.73 rear ratio!) imagine the MPG in a car that was at least 600 lbs lighter and with better aero. Total package hot rod.

[Sasquachulator]

I'd do a 2UR-GSE swap mainly for:

1.) keeping it in the family (im not opposed to crazy cross-manufacturer swaps, i just wouldnt be the one to do it if it came down to it)
2.) Less common swaps tend to be more awesome (LS, 2JZ, Honda motors...pfft...theres other motors out there too. Yeah those ones are probably the most simple though)

How about a Viper V10 (8.7L? Or that new one wich is a bit smaller displacement..i think 8.2L or something)
I think if this car needs a different motor, it needs one with some awesome NOISE to go along with it.

[Night Hawk]

Originally Posted by Sasquachulator

I'd do a 2UR-GSE swap mainly for:

1.) keeping it in the family (im not opposed to crazy cross-manufacturer swaps, i just wouldnt be the one to do it if it came down to it)
2.) Less common swaps tend to be more awesome (LS, 2JZ, Honda motors...pfft...theres other motors out there too. Yeah those ones are probably the most simple though)

How about a Viper V10 (8.7L? Or that new one wich is a bit smaller displacement..i think 8.2L or something)
I think if this car needs a different motor, it needs one with some awesome NOISE to go along with it.

Not saying it is a V-10 Viper engine ($25k+ btw) sound wise, but if you don't think the Boss makes awesome noise you obviously haven't heard one rumbling along or screaming at WOT.. even with stock exhaust the thing sounds bad ass. There is one thing that Ford, Chevy, and Hemi guys do agree on and that is that the new 5.0 Mustangs are some of the best sounding engines you can have. And they consider themselves an authority on such matters

Any way the thing that attracts me to the Boss 302 crate engine in this type of application is that it is light weight, will definitely fit in the 86 (its physically more compact than the 2UR-GSE) and that it is a high revving free breathing torquey V8 with [relatively] small displacement which also delivers power, speed, and flexibility. You get the characteristics of a racing engine along with Maserati rivaling smoothness and drivability around town. You also get an extremely durable engine that was designed from the ground up to take a thrashing, continuously, over and over, and still maintain reliability. This thing was made to race. A lot.

444 hp and 380 lb.-ft naturally aspirated is still a LOT for a car that would weigh in at less than 2400 lbs finished product. Make the car lower and wider while you are at it with some serious rubber, throw in a torsen differential, and you would have a hell of a track toy.

Originally Posted by Sasquachulator

2.) Less common swaps tend to be more awesome (LS, 2JZ, Honda motors...pfft...theres other motors out there too. Yeah those ones are probably the most simple though)

I'm not sure what you mean buy less common swaps. LS (Corvette) motors are frequently swapped into small Japanese cars like RX-7's, S2000's, 350Z's, and even Miata MX-5's. Swapping other Japanese engines in is even more common. None of these cars have had a 5.0 Coyote/Boss swapped into them (won't fit) making it the much less common swap in my mind. The LS engines are great engines, no doubt about that, but they are nothing to get excited about without either A: forced induction or B: huge displacement. The Ford 5.0 delivers a huge punch and great value in a small displacement with extremely modern tech and no blower required.

[MtnDrvr86]

I would love to see either H1 or H2 engines from Hartley Ent. based on Hyabusa engines in i4 or v8 http://www.h1v8.com/page/page/1562068.htm I mean who wouldnt want 10000 rpms

[Night Hawk]

The again if 444 bhp isnt enough... you could always look toward the 650hp and
600 lb.-ft 5.8 liter V8 from the 2013 Shelby GT500. More powerful than an LS9 and with a smoother powerband to boot. Also the most powerful production V8 currently produced on the planet. Just saying lol.

Still I would rather put the 5.0 in the FT86 for so many reasons.

[Night Hawk]

Originally Posted by MtnDrvr86

I would love to see either H1 or H2 engines from Hartley Ent. based on Hyabusa engines in i4 or v8 http://www.h1v8.com/page/page/1562068.htm I mean who wouldnt want 10000 rpms

awesome little engine but it would have several disadvantages..

For one it would have horrible street manners if you tried to put it in a street car (which would not be legal anyway lol)

very expensive

Low end is basically non existent

rebuild interval- the engine must be rebuilt every 150 hours

It would be a fantastic engine for a race car.. not so much for taking a trip to the mall though lol.



Side note about the Boss 302 engine in regard to RPMs.. It has a 8,000+ redline