Re: 511 Indy tunnel ram which carbs
[Re: AndyF]
#2721806
12/05/19 07:07 PM
12/05/19 07:07 PM
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Joined: Nov 2011
Posts: 287 PA
Harry's Taxi 2
enthusiast
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enthusiast
Joined: Nov 2011
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Andy, I'm leaning toward Indy t ram with ultra xp 650's for my combo. How much power do you think the eddy 500's can make on my combo? XP 650 carbs will cost a lot more than a pair of Edelbrock carbs. For your engine and your use the Edelbrocks will work fine and save you a ton of money. Or, if you're ready to go EFI get a dual Sniper setup with a Hyperspark distributor. Then you'll have full digital control of your fuel curve and ignition. You'll also have wide band feedback so you'll know what your air fuel ratio is and you'll be able to run data logs on the street or track. Something like that would answer a lot of questions that you have. This makes no sense, on the one hand the advice is to save a buck by going with edelbrocks and then the next is the advice to spend a small fortune for a setup that, at best will equal a pair of well tuned carbs. (with the exception of cold start drivability) As a reply to the OP's question, a pair of properly tuned 650 Holley's will run and drive quite well....although I'd go with the 750 Holley's as I've run both as well as 625-750 carter/edelbrocks and drivability is pretty much the same, but the 750's have equal throttle body sizes for a little more equal distribution. Also, the annular boosters are available in the 750's to which I recently did a little back to back testing between them and downlegs, with the annulars having a "slight" et advantage over downlegs. I suspect with your car being a little heavier than mine, annulars would probably be the better choice.
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: 511 Indy tunnel ram which carbs
[Re: Harry's Taxi 2]
#2721812
12/05/19 07:31 PM
12/05/19 07:31 PM
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Joined: May 2011
Posts: 4,489 northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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This is where I figured he could save 1k$ by running his current 1050 single carb and get what 2 carbs he wanted later. Andy, I'm leaning toward Indy t ram with ultra xp 650's for my combo. How much power do you think the eddy 500's can make on my combo? XP 650 carbs will cost a lot more than a pair of Edelbrock carbs. For your engine and your use the Edelbrocks will work fine and save you a ton of money. Or, if you're ready to go EFI get a dual Sniper setup with a Hyperspark distributor. Then you'll have full digital control of your fuel curve and ignition. You'll also have wide band feedback so you'll know what your air fuel ratio is and you'll be able to run data logs on the street or track. Something like that would answer a lot of questions that you have. This makes no sense, on the one hand the advice is to save a buck by going with edelbrocks and then the next is the advice to spend a small fortune for a setup that, at best will equal a pair of well tuned carbs. (with the exception of cold start drivability) As a reply to the OP's question, a pair of properly tuned 650 Holley's will run and drive quite well....although I'd go with the 750 Holley's as I've run both as well as 625-750 carter/edelbrocks and drivability is pretty much the same, but the 750's have equal throttle body sizes for a little more equal distribution. Also, the annular boosters are available in the 750's to which I recently did a little back to back testing between them and downlegs, with the annulars having a "slight" et advantage over downlegs. I suspect with your car being a little heavier than mine, annulars would probably be the better choice.
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Re: 511 Indy tunnel ram which carbs
[Re: Harry's Taxi 2]
#2721819
12/05/19 07:55 PM
12/05/19 07:55 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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Andy, I'm leaning toward Indy t ram with ultra xp 650's for my combo. How much power do you think the eddy 500's can make on my combo? XP 650 carbs will cost a lot more than a pair of Edelbrock carbs. For your engine and your use the Edelbrocks will work fine and save you a ton of money. Or, if you're ready to go EFI get a dual Sniper setup with a Hyperspark distributor. Then you'll have full digital control of your fuel curve and ignition. You'll also have wide band feedback so you'll know what your air fuel ratio is and you'll be able to run data logs on the street or track. Something like that would answer a lot of questions that you have. This makes no sense, on the one hand the advice is to save a buck by going with edelbrocks and then the next is the advice to spend a small fortune for a setup that, at best will equal a pair of well tuned carbs. (with the exception of cold start drivability) As a reply to the OP's question, a pair of properly tuned 650 Holley's will run and drive quite well....although I'd go with the 750 Holley's as I've run both as well as 625-750 carter/edelbrocks and drivability is pretty much the same, but the 750's have equal throttle body sizes for a little more equal distribution. Also, the annular boosters are available in the 750's to which I recently did a little back to back testing between them and downlegs, with the annulars having a "slight" et advantage over downlegs. I suspect with your car being a little heavier than mine, annulars would probably be the better choice. It makes sense if you understand the benefits of EFI. Not only do you get full computer control of the fuel curve and the ignition timing but you also get data logging. If you have paid any attention to Dave's posts over the past year he could use a lot of help in all three areas. If he had a properly functioning EFI system on his car (which might not be a realistic goal) then he would be able to resolve a lot of his questions. It isn't really about maximum power output for Dave since he is way off that curve anyway.
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Re: 511 Indy tunnel ram which carbs
[Re: mopar dave]
#2721824
12/05/19 08:07 PM
12/05/19 08:07 PM
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Joined: Nov 2011
Posts: 287 PA
Harry's Taxi 2
enthusiast
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enthusiast
Joined: Nov 2011
Posts: 287
PA
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Yeah, alot of people run 750's on there t ram. I think twin 750 Holley carbs is the way to go. They can grow with your program and resale is probably better than the 650 as well. Good advise from hardcoreB. I think I have alot to learn here as this will be my first t ram. When you get to the point of needing an initial calibration starting point, I'd be happy to let you know what my carbs ended up at for a start. I will add, that a fair amount of initial timing helps quite a lot as far as off-idle drivability. I have 28*initial 36* total.......starts fine hot 493 with 13.3-1 and 273* @ .050
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: 511 Indy tunnel ram which carbs
[Re: AndyF]
#2721828
12/05/19 08:23 PM
12/05/19 08:23 PM
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Joined: Nov 2011
Posts: 287 PA
Harry's Taxi 2
enthusiast
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enthusiast
Joined: Nov 2011
Posts: 287
PA
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Andy, I'm leaning toward Indy t ram with ultra xp 650's for my combo. How much power do you think the eddy 500's can make on my combo? XP 650 carbs will cost a lot more than a pair of Edelbrock carbs. For your engine and your use the Edelbrocks will work fine and save you a ton of money. Or, if you're ready to go EFI get a dual Sniper setup with a Hyperspark distributor. Then you'll have full digital control of your fuel curve and ignition. You'll also have wide band feedback so you'll know what your air fuel ratio is and you'll be able to run data logs on the street or track. Something like that would answer a lot of questions that you have. This makes no sense, on the one hand the advice is to save a buck by going with edelbrocks and then the next is the advice to spend a small fortune for a setup that, at best will equal a pair of well tuned carbs. (with the exception of cold start drivability) As a reply to the OP's question, a pair of properly tuned 650 Holley's will run and drive quite well....although I'd go with the 750 Holley's as I've run both as well as 625-750 carter/edelbrocks and drivability is pretty much the same, but the 750's have equal throttle body sizes for a little more equal distribution. Also, the annular boosters are available in the 750's to which I recently did a little back to back testing between them and downlegs, with the annulars having a "slight" et advantage over downlegs. I suspect with your car being a little heavier than mine, annulars would probably be the better choice. It makes sense if you understand the benefits of EFI. Not only do you get full computer control of the fuel curve and the ignition timing but you also get data logging. If you have paid any attention to Dave's posts over the past year he could use a lot of help in all three areas. If he had a properly functioning EFI system on his car (which might not be a realistic goal) then he would be able to resolve a lot of his questions. It isn't really about maximum power output for Dave since he is way off that curve anyway. Yes, I understand the benefits of EFI......since the middle to late 80's and in recent years it's just become the latest aftermarket shiny sale item.......does nothing better than a tuned carb, a little distributor work and a $600 +/- O2 recorder (again, with the exception of cold weather drivability and that can even be worked out with a little choke creativity) It does make a car a little lighter.....in the drivers wallet area.
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: 511 Indy tunnel ram which carbs
[Re: mopar dave]
#2721914
12/06/19 01:16 AM
12/06/19 01:16 AM
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Joined: Jan 2003
Posts: 6,354 Aurora, Oh.
max_maniac
master
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master
Joined: Jan 2003
Posts: 6,354
Aurora, Oh.
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I run 2 Eddy 800's and used to run the 750's. The 800's made more HP on the dyno and also were 1/10 quicker on the track with a back to back test. I do have a couple of sets of the 750's if interested.
Last edited by max_maniac; 12/06/19 01:17 AM.
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Re: 511 Indy tunnel ram which carbs
[Re: mopar dave]
#2722012
12/06/19 12:28 PM
12/06/19 12:28 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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... Also their is word out there that the Holley ultra xp line is not so good... Like a lot of off-the-shelf carbs sold today, their calibration may be "less than optimal" for what they get put on. This one doesn't suck as much as it used to, after a combination of work by AED and myself.
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Re: 511 Indy tunnel ram which carbs
[Re: mopar dave]
#2722026
12/06/19 01:13 PM
12/06/19 01:13 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
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Posts: 4,457
Washington
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I spoke with Dom last night and I really would like to have his billet carbs poking up thru my hood. We determined 750's would be best for my combo. With Dom not only are you getting a premium product, but you also get premium service after the sale. With all that in mind I still have the urge to pull the trigger on a pair of ultra xp's and recalibrate myself. Also their is word out there that the Holley ultra xp line is not so good. Decisions decisions. I'm going to ponder this a few more days, but Holley 750's with downlegs is what Dom has suggested. I can get the Indy tunnel ram any time and I was just told Dwayne is an Indy dealer as well. As Brad pointed out in the post after this one, the XP Holley's I have been into (3 total) and every one of them had a different calibration and they were all the same part number!!!! The last one was about a month ago and I was pin gauging all the holes and the IFR were .059! On both the primary and secondary metering blocks. And the IAB's were normal. So I called Holley and got some guy on the line and told him that. I also told him the calibration differences between the three carbs. He had no answer for that. He also said the IFR for that carb should be .029! The point is you'd be better off letting Dom get you sorted out, especially if you've never set up TR carbs because it's nowhere near the same. If you are a guy who enjoys the process and you do want to do the carbs yourself (I have no problem with this because that's the best way to learn) long before I bought a Holley carb I'd buy the ProForm 750 and start with those. Much less money and just as good or better carb to start with.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: 511 Indy tunnel ram which carbs
[Re: madscientist]
#2722034
12/06/19 01:49 PM
12/06/19 01:49 PM
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Joined: Jan 2007
Posts: 8,042 Mt Morris Michigan
mopar dave
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OP
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Mt Morris Michigan
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Thanks for that piece of info. I have a good idea about whats needed, but I know there will be a big learning curve involved. I really like doing this stuff and not new at it. I do enjoy carb work, always have. I know if I buy carbs and do the calibrating myself, they will not be as good as Doms billet pieces. Carbs are very expensive and if ya want the best you have to step up to the pay window. That's my problem.
Last edited by mopar dave; 12/06/19 01:51 PM.
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