anybody build or buy a 725 +++H.P. PUMP gas motor ?

Posted By: 10sec340

anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 02:46 AM

I'm so tired of spending $150 to cruise around in my race gas Dart !!
looking to drop to 11-1 no more of this 13 1/2-1
But I need to keep it over 725 horse..........
any tips on builds or places that sell combos without having to rob a bank !!

Tim

Posted By: ProSport

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:08 AM

E85

Posted By: DemonDust

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:33 AM

Quote:

E85

Super cheap, and it will make a little more power

It will also run a bit cooler

Posted By: gregsdart

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 11:17 AM

Quote:

Quote:

E85

Super cheap, and it will make a little more power It will also run a bit cooler

For the cost of the carb mods, you are in business. Just need enough fuel delivery capacity to flow forty percent more fuel for the E-85

Posted By: hemi-itis

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 11:27 AM

Boost is what legends are made of

Posted By: Defbob

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 12:25 PM

Shafiroff

Posted By: chryco

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 12:37 PM

RBRE 557 Cu.In. Pump Gas (11.5:1)
875 hp / 759Ft.Lbs

Good Gas Mileage !

Attached picture 5448325-MVC-005S.jpg

Posted By: 10sec340

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 02:13 PM

Quote:

Quote:

Quote:

E85

Super cheap, and it will make a little more power It will also run a bit cooler

For the cost of the carb mods, you are in business. Just need enough fuel delivery capacity to flow forty percent more fuel for the E-85

I set up with Magne 500 pump/filter, regulator...

Tell me more about this e85 stuff please......whats involved in converting, and does it run in a 13 1/2-1 motor ???
Tim

Posted By: hemi-itis

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:41 PM

Quote:

Quote:

Quote:

E85

Super cheap, and it will make a little more power It will also run a bit cooler

For the cost of the carb mods, you are in business. Just need enough fuel delivery capacity to flow forty percent more fuel for the E-85

How much is e-85 a gallon????Considering you use 40% more volume and there is maybe one place in nassau county to purchase e-85,I,m not so sure that's the way to go.IMOP boost is the way to go.Cruzin on pump gas,and when you go to the track a pulley change and fill it with the good gas

Posted By: joshking440

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:46 PM

Quote:

Quote:

Quote:

Quote:

E85

Super cheap, and it will make a little more power It will also run a bit cooler

For the cost of the carb mods, you are in business. Just need enough fuel delivery capacity to flow forty percent more fuel for the E-85

How much is e-85 a gallon????Considering you use 40% more volume and there is maybe one place in nassau county to purchase e-85,I,m not so sure that's the way to go.IMOP boost is the way to go.Cruzin on pump gas,and when you go to the track a pulley change and fill it with the good gas

Its around 2.00 a gallon here in indianapolis.

As far as carb mods, call C&S Specialties, CSU, or Quickfuel.

We had C&S do my dads dominator and it only cost $250.00

Posted By: emarine01

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:49 PM

As corny <no pun intended

> as it sounds going E85 will help the racing industry as a green sport

Posted By: DemonDust

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:50 PM

E-85 here last I checked was 2.21 a gallon. All it requires is alchohol compatible fuel pump and E-85 carb.

Why spend thousands on a rebuild, turbo, or supercharger when you can spend about $1500 and be streetable.

E-85 is rated for 105 octane. There are guys running it in 15:1 applications.

When you compare $8-12 a gallon to around $2 the 30% more fuel usage to me goes right out the window

EDIT......

IF you already have a carb it won't cost you $1500 and if you are running a good race fuel pump more than likely it is compatible with alcohol so you won't have to buy that either. If you have the carb and pump you'll be out about $250-300 for the E-85 conversion kit for the carb.

Sounds like a good idea to me

Posted By: joshking440

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 03:56 PM

Not to mention that a lot of the bigger pumps are good for e85 so all you are out is a little carb mod...and the fumes arent so toxic, and like emarine said, it is good for the green image!

Posted By: Dragula

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 06:55 PM

E85 will support almost 16:1 compression, so your 13.5:1 will not be an issue.

Posted By: hemi-itis

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 09:19 PM

Quote:

E85 will support almost 16:1 compression, so your 13.5:1 will not be an issue.

Well,after what all of you have said,the only problem is the availabilty here on long island.Well Tim,what say ye'

Posted By: 440Jim

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 10:56 PM

Availability of E85 in your area is part of the decision.

http://www.e85refueling.com/
http://www.e85refueling.com/distance.php?page=1

I love my switch to E85 in my race car. The mods were paid for by fuel cost savings from race gas in 1 season. Right now race 110 (VP) is $9.25 at the local track. In May I paid $2.09 for E85 and in July it was $2.29. Typically 5-20 percent cheaper than 87 octane pump gas!

13.5 CR, 279/287 at 0.050" cam, aluminum heads, flat top pistons, 0.039" quench. I ran a E85 carb in 2008 and got a good deal on a used Ron's flying toilet mechanical fuel injection ($800) for this year. I started injection with alky (methanol) and switched calibration over to E85.

Posted By: 10sec340

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 11:31 PM

Quote:

Quote:

E85 will support almost 16:1 compression, so your 13.5:1 will not be an issue.

Well,after what all of you have said,the only problem is the availabilty here on long island.Well Tim,what say ye'

I saying this sounds like a way I might go !!

Posted By: 10sec340

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 11:32 PM

One more ? on e85
Anybody have a dyno # on there car with Gas then after just the mods to go e85 another dyno # ?
Or the same ? with track times before and after ??

Tim
The Legend

Posted By: sixpackgut

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/29/09 11:48 PM

Quote:

One more ? on e85
Anybody have a dyno # on there car with Gas then after just the mods to go e85 another dyno # ?
Or the same ? with track times before and after ??

Tim
The Legend

There was someone that changed carbs and tried E85 and power dropped off alot but i think most of us thought there was something else going on. i dont want to scare you off but those were the results from one member.

seems many other members have had positive results at the track

Posted By: 10sec340

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/30/09 03:16 AM

I need to hear those #'s

Posted By: joshking440

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/30/09 05:34 AM

DTHEMI....where are tou...we need your to help convert another one...you have that silver tongue

Posted By: cudaben1968

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/30/09 06:23 AM

how well does e gas store????

Posted By: Mopar_Rich

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/30/09 03:10 PM

725 HP, almost 700 ft lbs, 850 RPM idle, on 89 octane.

But this engine DOES rob the bank...

Attached picture 5450370-18-FinishedHemi.jpg

Posted By: Dragula

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/31/09 04:14 PM

Quote:

I need to hear those #'s

You could do a rough calc on that based on what most guys picked up in et in the 1/4. I think most posted between .05 to .1 or even a .15 improvement. If they would post the mph improvements or their actual previous mph you could get a rough idea. Looks like around 50-60hp depending.

Just remember that the timing has to be changed as well. Switching carbs alone does not 'optimze' the combo with the new fuel. It also requires a change in timing.

Posted By: bec

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/31/09 05:47 PM

The problem with E85 is that it is not always 85% ethanol. It can range anyway from 70 to 90 percent which will mess with the jetting requirements of the engine.

Posted By: Hemiroid

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/31/09 06:01 PM

Quote:

The problem with E85 is that it is not always 85% ethanol. It can range anyway from 70 to 90 percent which will mess with the jetting requirements of the engine.

This is what stops me from playing with it.

Posted By: 10sec340

Re: anybody build or buy a 725 +++H.P. PUMP gas motor ? - 08/31/09 06:14 PM

I think thats what the $21 E85 tester is for ?