Giuseppe Gentile Twin Turbo Hemi

Sounds like a great combo for a car or boat! My dad had a 110 mph flat bottom boat in 1970 and 100 mph scared the hell out of me! Well, i was only 9 or 10 at the time. He ran a 427 sideoiler with a stroker crank approx (454 CI) with a cross ram and (2) 780 Hollies. That is where I became a true blue guy. Good luck with your engine build and keep us posted on how it performs. Looks like a real nice boat!

Turbotime, what kind of rpm do you guys need to turn with the 548 and B441 heads to start making some good hp numbers, is it laggy down in the mid range rpm? I've had a few guys telling me the b441 heads on my 598 will not run very well under about 8000rpm even with the turbos.

We make good power everywhere. However, we are running Precission Promod 91mm turbos. No soft spots at all! We like to keep under 9K, but it wants to run higher. We have spun the motor 9.5k. If you can keep it between 7-8K your motor will live longer. What size turbo's are you running? Remember, mo boost less lag

Turbotime wrote:Sounds like a great combo for a car or boat! My dad had a 110 mph flat bottom boat in 1970 and 100 mph scared the hell out of me! Well, i was only 9 or 10 at the time. He ran a 427 sideoiler with a stroker crank approx (454 CI) with a cross ram and (2) 780 Hollies. That is where I became a true blue guy. Good luck with your engine build and keep us posted on how it performs. Looks like a real nice boat!

I didnt know you were a hard core Ford nut (I am as well).
Thats good stuff.
I will have to hollar at you if you are gonna be at the PSCA Vegas race in Feb. I'll be there running Outlaw 10.5 in that ugly black mustang.

Turbotime wrote:We make good power everywhere. However, we are running Precission Promod 91mm turbos. No soft spots at all! We like to keep under 9K, but it wants to run higher. We have spun the motor 9.5k. If you can keep it between 7-8K your motor will live longer. What size turbo's are you running? Remember, mo boost less lag

I have a pair of BW s475's, but they will get the new style 88mm wheel and racecovers. I'm just wanting a good strong running pumpgas motor, for now. What kind of hp do you think my combo might make on pumpgas? I'm hoping for about 15lbs of boost, 598 9:1 cr, B441 heads, C&S 1400 carb, water/meth injection at around 7000rpm.

Thanks, Dallas

jwall good save in vegas!

Darrin Gorham wrote:jwall good save in vegas!

Thanks, glad I didnt hit the wall (got lucky).

Filucky wrote:

Turbotime wrote:We make good power everywhere. However, we are running Precission Promod 91mm turbos. No soft spots at all! We like to keep under 9K, but it wants to run higher. We have spun the motor 9.5k. If you can keep it between 7-8K your motor will live longer. What size turbo's are you running? Remember, mo boost less lag

I have a pair of BW s475's, but they will get the new style 88mm wheel and racecovers. I'm just wanting a good strong running pumpgas motor, for now. What kind of hp do you think my combo might make on pumpgas? I'm hoping for about 15lbs of boost, 598 9:1 cr, B441 heads, C&S 1400 carb, water/meth injection at around 7000rpm.

Thanks, Dallas

Too many variables, I assume the BW s475's are comparable with Precision 88's. However, with 15psi of boost, I would double the HP over what the motor would make if it were natural aspirated. Maybe a little under at 7K rpm depending on cam timing and ignition. No mater what, I am sure you will give the Bow Tie boys pleanty of trouble!

jwall wrote:

Turbotime wrote:Sounds like a great combo for a car or boat! My dad had a 110 mph flat bottom boat in 1970 and 100 mph scared the hell out of me! Well, i was only 9 or 10 at the time. He ran a 427 sideoiler with a stroker crank approx (454 CI) with a cross ram and (2) 780 Hollies. That is where I became a true blue guy. Good luck with your engine build and keep us posted on how it performs. Looks like a real nice boat!

I didnt know you were a hard core Ford nut (I am as well).
Thats good stuff.
I will have to hollar at you if you are gonna be at the PSCA Vegas race in Feb. I'll be there running Outlaw 10.5 in that ugly black mustang.

jwall, I've seen your car and it halls ass! Your car is not ugly either, it's a race car! Our entire team bleeds blue! We are usually so busy that we don't get much time to watch others run. It takes two hours to turn the car around between runs. We are planning to make the Feb race in Vegas, hope to see you there. Ask for Tom.

Turbotime wrote:

Too many variables, I assume the BW s475's are comparable with Precision 88's. However, with 15psi of boost, I would double the HP over what the motor would make if it were natural aspirated. Maybe a little under at 7K rpm depending on cam timing and ignition. No mater what, I am sure you will give the Bow Tie boys pleanty of trouble!

Thanks for the input, man i can't wait to get this thing back together and on the water.

Turbotime,

Nice little article on the car in the Rumors section in the February 2011 NMRA Race Pages.

Later Mark.

Thanks Mark,

Looking forward to Feb 18th - 20th. Season starts in Vegas. Going to try to put the FORD in the winners circle. Hopefully this year will be good to us. Race Pages have been good to us. All Ford all the time!

Turbotime wrote:Thanks Mark,

Looking forward to Feb 18th - 20th. Season starts in Vegas. Going to try to put the FORD in the winners circle. Hopefully this year will be good to us. Race Pages have been good to us. All Ford all the time!

No problem keep us updated on how you guys do in 2011.

Thanks Mark.

Turbotime wrote:Thanks Mark,

Looking forward to Feb 18th - 20th. Season starts in Vegas. Going to try to put the FORD in the winners circle. Hopefully this year will be good to us. Race Pages have been good to us. All Ford all the time!

pm sent