Search found 39 matches

by gran turismo
Wed Oct 06, 2010 7:37 pm
Forum: Engine
Topic: Aluminum fly
Replies: 12
Views: 4732

Re: Aluminum fly

I am curious how streetable a 10 lb flywheel is. Mine is about 16 lbs and I am somewhat concerned about it since it is much lighter than before. But maybe the driveshaft and rear flywheel help.
by gran turismo
Wed Oct 06, 2010 4:10 pm
Forum: Engine
Topic: Aluminum fly
Replies: 12
Views: 4732

Re: Aluminum fly

Xrad,

I wonder how they get an adequate counterweight with aluminum. I can't tell from the pictures in your other post. Is there a picture of the counterweight side?
by gran turismo
Wed Oct 06, 2010 10:56 am
Forum: Engine
Topic: Crank pulley dynamic balance
Replies: 14
Views: 5641

Re: Crank pulley dynamic balance

Moving the counterweight forward on the crank will increase the dynamic bending stress on the crank. This will affect the dynamic balance of your motor. How much? I don't know. Also, I have heard of catastrophic failures of cast iron flywheels lightened with radial holes similar to your cast iron pu...
by gran turismo
Mon Oct 04, 2010 8:32 pm
Forum: Performance
Topic: New V6 3liter 12v pistons.
Replies: 104
Views: 24710

Re: New V6 3liter 12v pistons.

Maybe you got something there Kevin! F*** the oil pump...The babes can bring in much more $$ It's all about compromizes. Spend 1/3 of your time pimping. Then you can spend the other 2/3 of your time on the alfas and have plenty of money to do it. :mrgreen: Seriously though, hope the motor holds tog...
by gran turismo
Fri Oct 01, 2010 8:36 pm
Forum: Performance
Topic: New V6 3liter 12v pistons.
Replies: 104
Views: 24710

Re: New V6 3liter 12v pistons.

Jim,

So how is the V6 running? Any dyno results yet? I've read the 1.8T thread and realize the V6 isn't your favorite any more but it's been a few months since your last post here so I thought that I would ask....

thanks,

Jeff
by gran turismo
Thu Sep 16, 2010 6:15 pm
Forum: Gotech Fuel Injection
Topic: Choke
Replies: 4
Views: 3060

Re: Choke

Just use the stock Bosch Auxillary Air Valve. It is independent of the ECU.
by gran turismo
Sat Sep 11, 2010 7:05 pm
Forum: Gearbox, Clutch and Driveshaft
Topic: Alfa 90 2.0 v6 driveshaft, gearbox
Replies: 12
Views: 3816

Re: Alfa 90 2.0 v6 driveshaft, gearbox

35mm should be adequate for a 3.0 (since I think that a 3.0 milano/75 had 34 mm runners) but about 40mm would be ideal. I wonder if the intake runner mounting surfaces on your heads are the same as a 3.0? Did you try to turn the crank with the timing belt disconnected? If so a valve hitting a piston...
by gran turismo
Fri Sep 10, 2010 5:37 pm
Forum: Gearbox, Clutch and Driveshaft
Topic: Alfa 90 2.0 v6 driveshaft, gearbox
Replies: 12
Views: 3816

Re: Alfa 90 2.0 v6 driveshaft, gearbox

That split plenum is really cool! What is the inside diameter of the throttle butterflys and the intake runners?

There is another guy with a 90 (Typhoon90) that might be able to help with the driveshaft.

Jeff
by gran turismo
Mon Aug 23, 2010 4:35 pm
Forum: Engine
Topic: ARP bolts for V-6
Replies: 10
Views: 3283

Re: ARP bolts for V-6

I called ARP about this once. They said if I sent them a bolt they would try to match it up to something they have in stock.

I just purchased new bolts from IAP. They are grade 12.9 and should be strong enough for most uses. The only problem was they were like $13 each!

Jeff
by gran turismo
Tue Aug 17, 2010 11:02 am
Forum: Fuel, Electrical & ignition (stock Bosch)
Topic: distributor guts??
Replies: 2
Views: 1743

Re: distributor guts??

So my distributor has no centrifugal advance mechanism, just vacuum advance. Engine speed based advance must be controlled by the ignition ECU...... Anyway, I removed the vacuum advance module and installed a cover plate over the hole. I reinstalled the hall sensor and trigger wheel and put a screw ...
by gran turismo
Wed Aug 11, 2010 4:51 pm
Forum: Fuel, Electrical & ignition (stock Bosch)
Topic: distributor guts??
Replies: 2
Views: 1743

distributor guts??

I took apart my 85 gtv6 distributor a couple of days ago in order to lock the centrifugal advance, and remove the vacuum advance and the hall sensor pickup. I am converting to a crank sensor and megasquirt so I don't need the hall sensor in the distributor any more. What I discovered is that this di...
by gran turismo
Wed Jul 28, 2010 8:55 pm
Forum: Introduce yourself - Gallery
Topic: Greetings from an 83!
Replies: 51
Views: 18488

Re: Greetings from an 83!

I think you will find some people who have passed smog in CA with aftermarket FI. Nice car by the way!
by gran turismo
Wed Jul 28, 2010 10:45 am
Forum: Introduce yourself - Gallery
Topic: Greetings from an 83!
Replies: 51
Views: 18488

Re: Greetings from an 83!

Hi Gregory,

Just out of curiosity are those new injectors stock (stage 1) or stage 2?
by gran turismo
Mon Mar 29, 2010 10:04 pm
Forum: Exhaust System
Topic: Secondary Pipe Tuning???
Replies: 20
Views: 8080

Re: Secondary Pipe Tuning???

Gran Turismo (my favorite game ), you refer to the secondary pipe as the the collector. I can see why this is so, but have never heard of it referred to like that.
I was thinking secondaries are for V8 tri-y headers but can see it either way too.
by gran turismo
Mon Mar 29, 2010 9:18 pm
Forum: Exhaust System
Topic: Secondary Pipe Tuning???
Replies: 20
Views: 8080

Re: Secondary Pipe Tuning???

No graph option? Is it possible to export the data then? Comma separated or excel or something? Hmm, I really should learn to use GT-Power. The only thing that I could figure out is to print it to a PDF converter then you can select the text and copy to excel or whatever. Not very friendly in that ...