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Topic Review (Newest First)
10-23-2012 09:29 PM
E.Furgal
Quote:
Originally Posted by vinniekq2 View Post
Im going to guess 700 hp plus or minus depending on final choice of parts. The 106 icl is curious for that large of engine.Use an 850 X as a minimum size.The flow numbers are important for a better guess.
the 106icl was because I told them I'd be spraying it.. and it was going in a 70 chevelle with 4.10's thats was more fun, and start with safe.. thats why the cam is mighty small for that intake track..
start mild, get car sorted then up the power.. now going in truck that will need to be sorted just to get it to hook and go..
plus I've never run a 106 cam, wanted to try one..
10-23-2012 09:25 PM
vinniekq2 ran that program again
Required CFM: 553 to 704 cfm (calculated)
for a 327 cube,6250 rpm,83% effinciency engine,,,,
10-23-2012 09:06 PM
vinniekq2 Im going to guess 700 hp plus or minus depending on final choice of parts. The 106 icl is curious for that large of engine.Use an 850 X as a minimum size.The flow numbers are important for a better guess.
10-23-2012 08:56 PM
E.Furgal
Quote:
Originally Posted by 327NUT View Post
What are "crowler rods"
a typo..
10-23-2012 08:43 PM
327NUT What are "crowler rods"
10-23-2012 08:34 PM
E.Furgal
Quote:
Originally Posted by lmsport View Post
On a real racing engine...yes, I have spent over $3k for a single carb. I have spent $4k on a gauge legal two barrel for a LMSC engine just to get 10hp more than a $2k carb.

I gave away the 850 BG I mentioned and I would not take another one if they were free. Good luck with your project.
love the way you compair a 2-3-4 thousand dollar piece to a 350.oo-550.oo one.. comical at best

want to compair a 20 dollar cast piston to a 190.oo one next..
10-23-2012 06:01 PM
lmsport
Quote:
Originally Posted by E.Furgal View Post
oh, so you're use'n 3000.oo carbs.. how much for that bridge again?
the bearclaw and demons pre 2009 are fine.. like everyone else he started cutting corners to stay in biz.. it didn't work..
as far as "that guy"
he IS the reason holleys carbs are 100x better than the garbage they sent out the door before he came along.. it forced holley to make better parts..
On a real racing engine...yes, I have spent over $3k for a single carb. I have spent $4k on a gauge legal two barrel for a LMSC engine just to get 10hp more than a $2k carb.

I gave away the 850 BG I mentioned and I would not take another one if they were free. Good luck with your project.
10-23-2012 05:46 PM
E.Furgal
Quote:
Originally Posted by lmsport View Post
Ooh yeah, that guy.
The last sooper-duper BG carb I dynoed would not maintain a consistent A/F ratio after sending it back to be rubbed on a few times.
I use Willys or Braswell cuz I dont have time to straighten out some shiny carb from Summit.
I have built and dynoed almost the same engine you want to build, except the cam I used was even smaller for use in a daily driven car, the disp was 496, and the intake was a dual plane. That engine made 575hp on pump 93.
oh, so you're use'n 3000.oo carbs.. how much for that bridge again?
the bearclaw and demons pre 2009 are fine.. like everyone else he started cutting corners to stay in biz.. it didn't work..
as far as "that guy"
he IS the reason holleys carbs are 100x better than the garbage they sent out the door before he came along.. it forced holley to make better parts..
10-23-2012 05:30 PM
lmsport
Quote:
Originally Posted by E.Furgal View Post
ever hear of a guy called barry grant

or his later line of carb demons
Ooh yeah, that guy.
The last sooper-duper BG carb I dynoed would not maintain a consistent A/F ratio after sending it back to be rubbed on a few times.
I use Willys or Braswell cuz I dont have time to straighten out some shiny carb from Summit.
I have built and dynoed almost the same engine you want to build, except the cam I used was even smaller for use in a daily driven car, the disp was 496, and the intake was a dual plane. That engine made 575hp on pump 93.
10-23-2012 05:28 PM
hcompton Is the race carb street able. They usally arent. I would go big. 750 dp is a great carb in your hp range but if your going for big power might as well get it out of the way early since you will have to put in tuning time on any carb.

The edelbrock 800 carb i had on my poncho was always too small. Had a holley projection 1000 cfm and it was terrible junk but wot worked. So as long as it was floored it made power. But it was never an issue of too much flow making the engine hit soft down low even with the big throttle body. It was nasty down low. 245 tires were not even noticed by the engine. If it coughed which the projection did all the time it would blow the tires away. Like the car sneezed. Boug-roar-screech

If you had a 1050 dom i would say to run that.
10-23-2012 05:06 PM
E.Furgal
Quote:
Originally Posted by lmsport View Post
I'm assuming a 750 carb as I dont know what a 850 bearclaw is.
.
ever hear of a guy called barry grant

or his later line of carb demons
10-23-2012 04:59 PM
lmsport
Quote:
Originally Posted by E.Furgal View Post
my 454 at 8.75 to 1 made 525 ft lb and 500hp
I'm assuming a 750 carb as I dont know what a 850 bearclaw is.
Head probably only flows about 340 at 0.600in lift.
Cam is too small for a really big hp number but will run well on the street. With a bigger cam, and more compression, you could get 750hp.
10-23-2012 04:43 PM
hcompton Looks good i dont know much about big chevy but you seem to have all the bases covered. Cam doesnt look whimpy at least. I have never installed a cam too big just valves that were too small. LoL

Did you have the cam and crank lined bored. I hear it is a problem with big chevy. That is why aftermarket blocks are such good sellers.

The closer your going to come to 500 cubes or more the bigger the cam needs to be. Just as a rule but nothing to help on big chevys.

This is the standard for engine math and performance tuning. If you really want to calculate it all out.
Four-Stroke Performance Tuning: Fourth edition: A Graham Bell: 9780857331250: Amazon.com: Books Four-Stroke Performance Tuning: Fourth edition: A Graham Bell: 9780857331250: Amazon.com: Books
10-23-2012 04:34 PM
35WINDOW I'll say 675 hp
680# TQ

It should definitely put a dent in your Wallet (buying Tires! )

For comparison's sake, I have something kinda similar, in that the Duration is the same (.248/.254 @ .050 & 110 LSA), 10.2:1, however my Lift is .680, my Heads are AFR 315's and it's a 540-my Engine put out 775.5 hp & 740# TQ-
10-23-2012 04:28 PM
E.Furgal
Quote:
Originally Posted by lmsport View Post
625hp
550ftlb
my 454 at 8.75 to 1 made 525 ft lb and 500hp
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