I know this is a bracket race forum but for your viewing pleasure here is a video of that pass

[video:youtube]https://www.youtube.com/watch?v=7JKpNVnAWcU[/video]

Someone go to Wallace and figure it 4.93 and you'll be close on the HP, maybe dead on.

quote:

Originally posted by Al Alguire:
I know this is a bracket race forum but for your viewing pleasure here is a video of that pass

https://www.youtube.com/watch?v=7JKpNVnAWcU

I am going to guess 1050, but it appears the WHOLE combo is flat out right. That thing sounds MEAN!!!!

Al, how about weather, da, trans gears and rear gear

I told ya how to figure it for HP

Another hint it's over 1100 hp is, the torque rotation of the engine is controlling the dynamics of the chassis.

And not the rotation of the rearend.

I do the trans on one same class makes 883 hp, has been 5.30's.

15 degree sbc 2800 lbs.

This thing is over 1100

quote:

Originally posted by 1320racer:
Al, how about weather, da, trans gears and rear gear

Ed there is a reason I say "in the ballpark" Obviouly weater/DA/Altitude play a roll. Look no further than our dragster which we have only run here in Las Vegas. Its a 1920lb Diamond that's been 4.53 153 here,it woudl obviously run better at a sea level track. Plug in those numbers which wont account for altitude and the number is skewed for sure. Hell we do backflips when the baro reaches 28.0, thats mineshaft here . I would say much like it would be for those who run those east coast "mineshaft" air tracks.

I would have to go back and look at the weather, but can tell you at that track in the middle of LA the Barometer rarely gets above 29.3/4. The DA was likely 24-2600' that day mid 80's fall day. Grains are generally below 50 or less, humidity generally under 25%. We run back east as well and have been pretty much the same ET when grains have been 100-130 with much higher humidities. We just make the appropriate changes to the tune to compensate for the water and generally we see much better Barometer readings so it ends up being a wash for the most part.

AS for the gear in the trans, depends on what the conditions call for, like the rear gear and the and the converter(well stator for us as its a bolt together, which I loathe. Pretty sure that run/race was a 5.0 rear gear with the 2.14 first Proflite. We do not have the car set up for 1/8 miles stuff as we concentrate on 1/4 mile for back easy NMCA stuff. Its a heads up car and we try to optimize every aspect of the car to the conditions. We do the best we can with a 400 small block at weight. I woudl agree for most guys who stuff is FAR from optimized the calculator might be a bit harsh to the ego but its just math. MPH, Weight, ET is just simple math from there.

I have spent most of my time the last few years around the heads up stuff. I have played a bit in brackets and TS, but have not really concentrated on it. I am actually putting together a new ride for brackets and S/ST again. Hoping it will be ready by years end but I will still be doing the heads up stuff in NA10.5 as I have been since 2011

This message has been edited. Last edited by: Al Alguire,

quote:

Originally posted by Al Alguire:
Maybe the experts can tell me how much power we make. Here's the slip, 2750lbs, 29.5x10.5(no W) all motor small block with a proflite. Fell free to flameaway. Oh yeah we have dyno numbers from a fairly accurate former pro stock teams dyno.

Oh yeah I know reaction time sucks, but there no reason to be anything but green. And I'm just he dummy turning wrenches on it.

As a WAG, leaving out the weather correction factor, 1180 to 1230.

Who's got an old school Moroso "slide rule" calculator laying around?
Surprisingly, it's fairly accurate, if you are running a stick shift car. Converter torque multiplication and slip throws some curves at it.

quote:

Originally posted by Mike Rietow:
The latest opportunity allowed to be one of the first to see the new ringless input shaft pump / stator tube design.]

looks just like the one I bought from Coan about 8-9 years ago , along with the ringless shaft , ...

quote:

Originally posted by Paul S/Q:

quote:

Originally posted by Mike Rietow:
The latest opportunity allowed to be one of the first to see the new ringless input shaft pump / stator tube design.]

looks just like the one I bought from Coan about 8-9 years ago , along with the ringless shaft , ...

It is same as always, ive ordered several this winter.

This message has been edited. Last edited by: 329L,

quote:

Originally posted by 329L:

quote:

Originally posted by Paul S/Q:

quote:

Originally posted by Mike Rietow:
The latest opportunity allowed to be one of the first to see the new ringless input shaft pump / stator tube design.]

looks just like the one I bought from Coan about 8-9 years ago , along with the ringless shaft , ...

It is same as always, ive ordered several this winter.

You haven't seen the new design ringless input pro mod pump.

It's new.

This is the old design.

The same design Coan uses, only the Coan ringless journal on the input shaft is slightly larger, takes larger rings in the stator tube.

This message has been edited. Last edited by: Mike Rietow,

This is the new design 2508A ringless 7 bolt pump. I'm hesitant to show the difference here because it's new.

I got two seven bolt pumps on the same day UPS from different companies, one was the old style in the same type styrofoam case.

This is the pump we're using for the new transmission I'm doing for the 4.30's - 4.40's dragster with the n/a 585.

It'll also have a 1.64 low gear.

They probably put *new* on the box, so they know what they're pulling off the shelf.

I just got 3 in today that look just like your first picture. Same 2508a part number. And i just talked to Chris, and he said there isnt any difference.......

quote:

Originally posted by 329L:
I just got 3 in today that look just like your first picture. Same 2508a part number. And i just talked to Chris, and he said there isnt any difference.......

cmon man , he just told you its not the same one we've all been buying from Coan for years .. its all new ... the shaft is .003 larger and the bushings are as well .. you know "ALL NEW " ..

quote:

Originally posted by Paul S/Q:

quote:

Originally posted by 329L:
I just got 3 in today that look just like your first picture. Same 2508a part number. And i just talked to Chris, and he said there isnt any difference.......

cmon man , he just told you its not the same one we've all been buying from Coan for years .. its all new ... the shaft is .003 larger and the bushings are as well .. you know "ALL NEW " ..

EXACTLY!

Since I mentioned we would run a 4.xx next time out just wanted to update.

TORQUE = HP x 5252 ÷ RPM

Pretty cool when you can put a dial-in on it, on the stand.

Math