Sweetest 3.2 on the planet?

[RickM]

Well at least a candidate. Check this out: http://brentwoodrocketscience.com/r2/r2.htm

Going into an RS replica...

[Randy Webb]

The CF shroud and black color theme is sweet.

But, preformance-wise it is not that exceptional - most of the things done are common for a hot rod engine of this type. AND, they didn't twin plug it. Also, they ceramic coated the headers, but not the pistons(?). The best thing would have been to ceramic line the exhaust ports, not the headers.

Overall, I think it's good documentation, and a nice color theme. But not an ultimate hot rod.

[RickM]

Originally posted by Randy Webb
AND, they didn't twin plug it.

I noticed that as well. He needs to check out Aaron's "Twin Plug Goodness...Look what I made" thread.

[svandamme]

it doesn't have MFI
if it did, i would agree

ok , and S-kinda cam's , but can't tell from the picture

[RickM]

Other "best of the 3.2 engine" pics are welcome........Bring the MFI on....

[bigrubberjeep]

It's a sweet motor, but I got to agree, the twin-plug would have been worth the wait.

[RickM]

Another candidate:

Although our own talented fabricator, Natchamp, started with a 3.0 he uses 3.2 P & Cs in his TT .....

[svandamme]

Originally posted by RickM
Other "best of the 3.2 engine" pics are welcome........Bring the MFI on....

don't have one

but if i would .... i'de sure as hell would want MFI on it

maybe not the newest thing , or the most performant thing

but i don't like chips and electronics on a car...

[RickM]

Twin Turbo Goodness:

[KobaltBlau]

I prefer this 3.2 based creation:



Supertec built 3.5 MFI

[Porschekid962]

Ah yes, henry's engine is a masterpiece, I would love to have that engine in anything.

[Randy Webb]

I think HS's engine wins the 3.2 (incl 3.2+) contest for what I've seen in NA engines. We'd have to put turbos in a differe category.

BTW, how many folks have used either CS valves or the 993 valves in theirs?

[bigrubberjeep]

Originally posted by Randy Webb
I think HS's engine wins the 3.2 (incl 3.2+) contest for what I've seen in NA engines. We'd have to put turbos in a differe category.

BTW, how many folks have used either CS valves or the 993 valves in theirs?

I agree! From what I have seen and read (not very much) HS kind of put Andial's 3.2 engine conversions and rebuilds out of business. They seem to stick to 3.6 and up now.

[RickM]

Originally posted by Randy Webb
We'd have to put turbos in a differe category.

upppp, uppp, uppp....my thread.....Turbos allowed

[david914]

Man, these engines are works of art. Maybe this ought to be the "ultimate engine porn" thread!

[svandamme]

Originally posted by KobaltBlau
I prefer this 3.2 based creation:



Supertec built 3.5 MFI

MFI ... yeah ... drool

ideally , i'de like to see this engine

without the fancy colours... with a twin plug

[rdane]

I'm rather fond of this one.

[Jeff Alton]

Why would they twin plug it? With 9.8:1 and carbs and that cam does it really need it?

[rdane]

Most of the professionals here have stated that anything over 98mm pistons need twin plugs to avoid detonation without race gas. This 3.5 engine was built to run 100 octane unleaded race gas.

Trick Leaded 115 octane is $5.66 a gallon here. Trick Unleaded 101 octane is $5.25 a gallon.


The Carrera 3.2 engine shown was built with high dome RSR pistons. They are better served with twin plugs because of the poor combustion chamber design with the RSR piston. Take a look at the web page photos. Again it is a detonation issue even with a 3.2 and 9.8:1 compression. Bad gas or a hot day and you'll have problems.

the builder's comments:

Originally, the plan was to twin-plug the heads and run dual spark plugs, but the cost of the ignition componentry and availability of information curtailed that plan rather quickly. Also, 9.8:1 compression should still be safe for pump gas.

Make up your own mind on that one. The info is well know and easily found. I'd want twin plugs on this 3.2, the 46s add to that decision, like most here have requested.


The 3.5 specs from Henry

"Also when built properly, the 100 mm engine will also offer tremendous results. We just built a 3.5 MFI single plug engine that amazed us on the Dyno. 369 RWHP @ 7660 rpm.

the specs:
3.2 case, Carrera II oil pump
Mahle 100 mm Ps & Cs 10.8 to 1
3.3 turbo crank with 962 journals / 3.0 rods, titanium 935 rod bolts.
3.3 turbo heads ported & flowed by Supertec 41 mm in 38 mm ex. Aasco springs, ty retainers
1 and 7/8 header
Elgin cams 320 / 304 set @ 6.2
Recurved Dist by Supertec 36 degrees total advance 100 octane unleaded
Taylor wires, MSD ign box 7800 rev limit
Custom MFI 41 butterflies, stacks, custom MFI pump, Fuel lines and enrichment by Supertec
wheel dyno was a Dyno Jet @ Pecora Dyno Service, Costa Mesa
369 @ 7660
326@ 5300

[Elombard]

FYI the brent wood rocket science guy is here on Pelican and in Atlanta. I have seen the car - very very nice. Seems to run exceptionally well. I cant remember his screen name - something japanese sounding. Hatori maybe?