How much torque is honestly to much? - Page 2

Bryan Wilson · #1 (**permalink**) 03-25-2009, 06:56 AM

Like the statement in my signature when it doesn't matter what gear your in you have enough torque

cheers,
Bryan

lovehamr · #2 (**permalink**) 03-25-2009, 02:37 PM

Quote:

Originally Posted by RICK LAKE

The side note is to treat a cobra like a loaded gun

Right! Never point it at anything that you don't want to destroy!

Steve

Pman1961 · #3 (**permalink**) 03-25-2009, 04:48 PM

Wayne I appreciate the response. What are some of the specifics of your motor? Heads, cam, intake, compression, etc. Thanks!

Wayne Maybury · #4 (**permalink**) 03-26-2009, 07:31 AM

Quote:

Originally Posted by Pman1961

Wayne I appreciate the response. What are some of the specifics of your motor? Heads, cam, intake, compression, etc. Thanks!

I tell everyone that this is a taxi motor.

I started with a block from the early 70's that I got for free. I have a friend that is an engine builder so he put some good used parts aside for me including a Comp cam, lifters, and a set of Wisco pistons. I added a set of Ford "M" stock car heads with Ford roller rockers, an Edelbrock dual plane intake, and a 750 Holley. The engine was professionally built and dynoed at 472 HP and 442 or 444 lbs of torque using my own carb and a set of mufflers.

The surprising thing about this engine is the sound. Even the engine builder can't understand why it has the sound that it does. I think that it is a combination of the cam he used and the "M" heads.

Wayne

patrickt · #5 (**permalink**) 03-26-2009, 09:22 AM

Quote:

Originally Posted by Wayne Maybury

The engine was professionally built and dynoed at 472 HP and 442 or 444 lbs of torque using my own carb and a set of mufflers.

Dynoing with mufflers attached is the honest approach. And those are nice numbers as well.

Wayne Maybury · #6 (**permalink**) 03-26-2009, 12:19 PM

Quote:

Originally Posted by patrickt

Dynoing with mufflers attached is the honest approach. And those are nice numbers as well.

Thank you Patrick

The engine builder expected to achieve about 435 HP because I wanted a dual plane intake for better low end response. He thought that we could get about 30 more HP with a single plane intake but even he was surprised when we got 472 HP. The intake and exhaust runners were cleaned up but the heads were not ported. However some work was done in the combustion chambers mainly to test the results on the flow bench before working on some race heads for a dirt modified car. This guy really knows how to squeeze the power out of SBF's and SBC's.

Wayne

Igofastr · #7 (**permalink**) 03-25-2009, 06:08 PM

I have 565 ftlbs, and it doesn't seem to be too much. Sure, I can smoke 'em at will. But I can also NOT smoke 'em at will. Seems very controlible to me. Wouldn't be afraid of a few more, probably would miss them if I had a few less.

Pman1961 · #8 (**permalink**) 03-25-2009, 06:44 PM

Steve your comment is hilarious!! SPO1715 I would think the majority feels as you good. Great response!

twin turbo · #9 (**permalink**) 04-13-2009, 09:31 PM

How much is too much? When you can't hook up no matter how fast you are going. Cheers.

lovehamr · #10 (**permalink**) 07-24-2010, 09:53 AM

I know that this thread is on TQ but I think the words of the immortal Mark Donohue work here as well: "it will never have enough power until I can spin the wheels at the end of the straightaway in high gear." He said this talking to engineers about the Porche 917-30 which had variable boost to adjust the power from 1100hp to 1500hp. The car only weighed 1871.7 lbs!
YeeeeHaaaa!!!!

Steve

Excaliber · #11 (**permalink**) 07-24-2010, 01:02 PM

I don't know how much my motor has. I know I can fry the tires ALL the way through 1st and 2nd and start getting traction around 80-85 mph,,,, with SLICKS! So, it's enough.

skippy · #12 (**permalink**) 07-29-2010, 03:40 AM

Interesting thread.

I had my stroked 392 with 500hp for 7 years and i realised i needed more power.

Keith Craft just finnished for me a stroked 445ci, Dynoed at 636hp and 613 ftlbs should have it in the car within 2 weeks, so im hoping this will cure my NEED problem.

Skip

FUNFER2 · #13 (**permalink**) 07-29-2010, 05:16 AM

Can you guys post your dyno results ?
I would appreciate it.

skippy · #14 (**permalink**) 07-29-2010, 05:53 AM

Quote:

Originally Posted by FUNFER2

Can you guys post your dyno results ?
I would appreciate it.

Will do next week......

( by the way pick up my pipes next week, thanks for the advice .)

)

Skip.

FUNFER2 · #15 (**permalink**) 07-29-2010, 05:57 AM

Let me know how you like them. And..., re-dyno because you'll gain gobs of HP & TQ.!

Pman1961 · #16 (**permalink**) 07-29-2010, 08:09 AM

It's been fun to revisit this post. Again, you guys are hilarious! You may have put two and two together from a more recents thread that I have started. I've got a 408w shortblock with 4340 internals, ordered the Keith Craft signature Brodix 210 heads and misc. parts (waiting on these items...come on Lance...put them on the truck!) Comp cam 35-427-08 which has 242 248 579 600, 10:1 compression, victor jr. intake. I also picked up the 402 style headers, have talked to Performance Engineering and Full throttle about sidepipes and swapping my TKO 500 to aTKO 600 with .82 overdrive. I figured I should be easily 550hp and maybe a little less torque at the flywheel. All the parts are new and were purchased from people that changed there plans meaning I saved substantially with the exception of my order from Keith Craft (Come on Lance put in some overtime and get the parts on the truck!) Don't take it personal Lance. I'm like a child on xmas morning. Can't wait!

skippy · #17 (**permalink**) 07-29-2010, 08:14 AM

[quote= I'm like a child on xmas morning. Can't wait![/QUOTE]

LOL, arn't we all......

Skip...

Pman1961 · #18 (**permalink**) 07-29-2010, 10:13 PM

Crap!!! My neighbor comes over this afternoon to discuss a moisture problem at his house. Me being the good guy that I am went to take a look at the problem. In the 10 minutes I was gone the UPS dude had been by and left a tag saying he was here and will be back tomorrow after 5:00pm needing a signature. It is my heads and other goodies from Keith Craft..yes!! So I don't get to fondle my goodies tonight but looking foward to tomorrow evening!

289fia_cobra · #19 (**permalink**) 07-30-2010, 07:50 AM

just caught this thread so I'm late on answering but I like the responses.
I started off with the old-timers goal of 1hp per cubic inch. Having owned a 65' Mustang w/289, I always felt that 200hp seemed kinda lame for such a great looking car.

So when it came time to build my engine (I think everyone should do it at least once in their life), my short-block 347's goal was 347HP.

When I finally finished it and installed it into my FFR w/3.55 gears and T5 tranny out of a 91' Mustang, it produced 355 HP / 385 ft.-lbs. (4th gear pull). This was before the replacement of the Holley Street Avenger to a Barry Grant 650DP and Wilsons 1" spacer.

For the last 4 years, this engine has never failed to impress me. Very streetable, never overheats, never broke the drivetrain (using a T-Bird IRS) but I can only smoke the tires in 1st. It would be kinda neat to smoke them in 2nd too

But to be honest, I'd draw the limit at 500HP if I could afford to do one more engine (but have some pro do the work.) Time to start saving up.

MaSnaka · #20 (**permalink**) 07-31-2010, 12:42 PM

Quote:

Originally Posted by 289fia_cobra

When I finally finished it and installed it into my FFR w/3.55 gears and T5 tranny out of a 91' Mustang, it produced 355 HP / 385 ft.-lbs. (4th gear pull). This was before the replacement of the Holley Street Avenger to a Barry Grant 650DP and Wilsons 1" spacer.

289fia,
Are you saying you made some nice gains by replacing your Holly Street Avenger? Just curious to hear about your results. I currently have the 770 Street Avenger in my 390fe. I took off the choke horn but wouldn't mind replacing the whole carb if there is a good reason to.

Thanks,
John