Alfetta at Centerline

alfarestore · #1 (**permalink**) 09-25-2005, 02:12 PM

Hey everyone.

I was in Colorado this month and stopped by Centerline for a while and this Alfetta pulled up. Notice anything different about this car?

Jeff

DonBeeson · #2 (**permalink**) 09-25-2005, 02:27 PM

those exhaust headers look a little tricky...

**ossodiseppia** · #3 (**permalink**) 09-25-2005, 02:39 PM

That looks like a two transmission Knops-mobile

JoeCab · #4 (**permalink**) 09-25-2005, 03:06 PM

Osso,

You are correct - it is the famoust Sean Knopp Bi-transmission Alfetta. He just installed a fresh motor and ran it at (possibly the final) AlfaCirco.

He's trying to clear out a few of his cars, so the Alfetta, his V6 Sports Racer, and his Giulietta Racecar are for sale. If anyone would like to be put in contact with him, PM me.

Joe

DonBeeson · #5 (**permalink**) 09-25-2005, 03:49 PM

can someone give me the downlow of that bi-transmission alfetta and what two transmissions will do for it (insane high speeds?)

JoeCab · #6 (**permalink**) 09-25-2005, 04:00 PM

It has a conventional 105 series transmission mounted directly to the engine, and an Alfetta transaxle in back.

Sean usually shifts the 105 transmission, and uses the rear transaxle to modify the ratios.

In other words, he will for example, get to the track, and pick 3rd gear on the transaxle and leave it there, then shift the front gearbox normally. For commuting (or higher speed tracks) he can put the transaxle in 5th for taller ratios.

The drawback is that there is twice as much HP lost to driveline friction, etc.

It was, I think, a big experiment that ended in a pretty unique car.

Joe

PSk · #7 (**permalink**) 09-25-2005, 04:09 PM

Quote:

Originally Posted by JoeCab

The drawback is that there is twice as much HP lost to driveline friction, etc.

Joe

HenryKrinkle · #8 (**permalink**) 09-25-2005, 04:45 PM

I have to say Ive never heard of this Bi-Transmission on an Alfetta.. Interesting.

Curious Osso, how could you see it was this system by these pics? or do you just know this car. heh. The engine seems to be sitting in the same position it would normally, and I can only really see the transaxle in the underneath shot.

That exhaust is pretty slick too, anymore pics..?

Bytheway, did anyone else notice that air filter? I could be wrong, but it looks like the Fuel Injected filter converted for the carbies? hehe.. come on does that really fool da law? jk

**ossodiseppia** · #9 (**permalink**) 09-25-2005, 05:01 PM

Quote:

Originally Posted by HenryKrinkle

Curious Osso, how could you see it was this system by these pics? or do you just know this car. heh. The engine seems to be sitting in the same position it would normally, and I can only really see the transaxle in the underneath shot.

HenryKrinkle · #10 (**permalink**) 09-25-2005, 05:07 PM

somehow I totally missed the interior shot. yea i guess that would be a giveaway haha. Cool car.

PSk · #11 (**permalink**) 09-25-2005, 06:04 PM

What happens when both transmissions are put in reverse ... ?

I think the car would actually go forward ...

Pete

Farace · #12 (**permalink**) 09-25-2005, 07:18 PM

Does the clutch only engage the front tranny? (Meaning the rear can only be shifted (easily) while the car is at rest)? Or is there something trickier going on?

tiger0529 · #13 (**permalink**) 09-25-2005, 08:17 PM

Very unique!!

I remember seeing the same setup (dual transmission) on bonneville alfetta GT at 2001 (2002?) convention in Nashville.The car had engine from 75 twinspark, and was sitting right beside that famous yellow series4 bonneville car, so it may as well be owned by Richard, the owner of the yellow spider.