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Manifold help

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    Senior Member BOYWONDER's Avatar
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    Default Manifold help

    building a new motor for my first runnerbottom, its a cole tr2, never been rigged she is a fatty on the heavier side, motor is gonna be a 496, don't have heads or cam or manifold yet,looking to get a manifold and send it to induction solutuions for some sex in bottle, very new to this so any advice or help would be awesome, deffinatly want to build a nitrous deal, just don't know if a single carb or dual card deal will work better for me, want a pump gas deal lake friendly but want it to run well on the bottle. thnks,

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    gn7
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    Quote Originally Posted by BOYWONDER View Post
    building a new motor for my first runnerbottom, its a cole tr2, never been rigged she is a fatty on the heavier side, motor is gonna be a 496, don't have heads or cam or manifold yet,looking to get a manifold and send it to induction solutuions for some sex in bottle, very new to this so any advice or help would be awesome, deffinatly want to build a nitrous deal, just don't know if a single carb or dual card deal will work better for me, want a pump gas deal lake friendly but want it to run well on the bottle. thnks,

    Very first thing you need to decide is how much spray you are considering. Some systems are big enough to literally stall the air thru the carb due to the fact that only so much air fuel will pass thru the ports and valves. If the N20 system is big enough, that's all that can pass thru.
    Even if you are less than that, dual doms on a T ram may not pass a single CFM more than a single carb once you push the button.



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    Senior Member BOYWONDER's Avatar
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    im gonna have steve do a 2 stage system for me 200hp and 400hp,just wana build it once and not multiple times, I know you guys are real sharp so any advice is awesome....

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    Quote Originally Posted by BOYWONDER View Post
    building a new motor for my first runnerbottom, its a cole tr2, never been rigged she is a fatty on the heavier side, motor is gonna be a 496, don't have heads or cam or manifold yet,looking to get a manifold and send it to induction solutuions for some sex in bottle, very new to this so any advice or help would be awesome, deffinatly want to build a nitrous deal, just don't know if a single carb or dual card deal will work better for me, want a pump gas deal lake friendly but want it to run well on the bottle. thnks,
    Unless you plan on spraying more than 500+ don't worry about it. Build the engine as good as you can NA. In other words; if you want to run a single carb I'd go with an Edelbrock 454R and a 1050. If you want to run a TR and two carbs you'll definitely make more power and in that case I'd run the Edelbrock Victor Ram and a pair of 4150's; as big as you're willing to run. For the heads, don't get too carried away. A small rect. port, something in the 305-310 range with a 2.25 int. valve will be plenty. For the cam contact Chris Straub (CStraub here on the forum) and get his recommendations.
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    Quote Originally Posted by BOYWONDER View Post
    im gonna have steve do a 2 stage system for me 200hp and 400hp,just wana build it once and not multiple times, I know you guys are real sharp so any advice is awesome....
    Just saw this. Hope you have plenty of NOs experience and really good parts (and plenty of extras). That's a lot of spray.
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    I was talking to steve he has his ideas on things, he was telling me 400 hp total was not crazy, my goal was to have a lakeable motor and when I realy wana get some acceleration therapy I could hit the button. def will use chris on the cam. as far as nitrous exspeariance I have 0, have been studying it for a year or so,reading and asking questions, I know that dosnt make up for on hands, havnt picked heads or manifold yet. just want to build it once and right the first time. thnks for your responces..

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    gn7
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    Quote Originally Posted by BOYWONDER View Post
    im gonna have steve do a 2 stage system for me 200hp and 400hp,just wana build it once and not multiple times, I know you guys are real sharp so any advice is awesome....
    I doubt a 496 with T ram and duals is going to make much more than a single dom with a fogger system when its on the bottle.
    Off the bottle, the N2O cam is not usually that optimum for off the bottle HP anyway, so the T ram isn't going to be much better there either.
    With a engine that size, and that spray, IMO, it comes down to person preference and the bling factor.

    I will give you one piece of advice that is more important than the carb/manifold for that deal. THE CAM!!
    If you pop open the Comp Cam catalog and pick out a NX cam, you be making a big mistake. You probably end up with a wider LSA than you need, with the exhaust opening sooner, and a wider duration split than the engine wants. It will be a dog off the bottle. Those cams at best, are geared to 100% N2O use at the strip.
    I would get ahold of Cstaub and give him a HONEST expected use of the boat and N2O. Chances are with a spray that size, and the use, he will come up with a grind that gives up very little HP when its on the bottle, and runs MUCH better off the bottle than the typical N2O cam will. At that spray level, you still cam the engine, not the bottle. Cam it wrong, and you will hate the thing when its off the bottle.



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    Quote Originally Posted by steelcomp View Post
    Just saw this. Hope you have plenty of NOs experience and really good parts (and plenty of extras). That's a lot of spray.
    Childs play. This is a lot of spray.
    Click image for larger version. 

Name:	nos motor.jpg 
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    Quote Originally Posted by BOYWONDER View Post
    I was talking to steve he has his ideas on things, he was telling me 400 hp total was not crazy, my goal was to have a lakeable motor and when I realy wana get some acceleration therapy I could hit the button. def will use chris on the cam. as far as nitrous exspeariance I have 0, have been studying it for a year or so,reading and asking questions, I know that dosnt make up for on hands, havnt picked heads or manifold yet. just want to build it once and right the first time. thnks for your responces..
    OK, I was misunderstanding what you meant. I thought you were going to run a 200 shot, then a 400 shot on top of it. If you mean 400 total, then I go back to what I said; you'll be fine. With a TR you could run a couple plate systems and make it easy on yourself. You WILL make more power with the TR than a single carb, hands down. Again, build the best NA engine you can and just add the NOs. For the amount of time you'll spend on the bottle you'll have an NA engine that's not going to give up anything and will respond very well to the NOs. I also agree with Bob's advice on the cam. Chris will tell you just what I did. He'll cam the engine to give you the best NA performance you're looking for and not worry about the NOs.
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    im deffanatly gonna have chris do the cam, as far as the system its gonna be a port system/not plate, I was just thinking the single carb would be a little sneaky looking,hahaah, I know ignition system is very important, also have compression ratio questions. as far as heads am I gonna be ok with cast or is aluminum a must

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    Quote Originally Posted by BOYWONDER View Post
    im deffanatly gonna have chris do the cam, as far as the system its gonna be a port system/not plate, I was just thinking the single carb would be a little sneaky looking,hahaah, I know ignition system is very important, also have compression ratio questions. as far as heads am I gonna be ok with cast or is aluminum a must
    Big single carb systems are OK and can make plenty of power but they're more of a challenge to tune. Aluminum heads are more resistant to detonation and repairable when you torch one. Compression should be whatever you can run NA. Pump gas I'd say keep it at or below 11:1. You should probably plan on an ignition system where you can control the timing for best results. You have to remember...if you build an honest 750hp NA, which should be easy, you're looking at almost 1200hp on the bottle. 1200 hp is 1200 hp along with all that goes with it. Is this a Mk4 block buid or a Dart or Merlin?
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    my goal was 600 n/a and 900-1000 on the bottle.is it possible to contact you and maybe put together a whole top end package, its a gm block 4 with lunati rotating assembly. once again I would like a very drivable package off the bottle. I live right near a lake (camp far west) were the law is pretty flexible as in it will spend most of the time runnin around vs all out racing. thnks for all your help, guys like the ones on here are very helpful that way I can spend my money once not twice..... thnks. Eric.

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    Quote Originally Posted by steelcomp View Post
    OK, I was misunderstanding what you meant. I thought you were going to run a 200 shot, then a 400 shot on top of it. If you mean 400 total, then I go back to what I said; you'll be fine. With a TR you could run a couple plate systems and make it easy on yourself. You WILL make more power with the TR than a single carb, hands down. Again, build the best NA engine you can and just add the NOs. For the amount of time you'll spend on the bottle you'll have an NA engine that's not going to give up anything and will respond very well to the NOs. I also agree with Bob's advice on the cam. Chris will tell you just what I did. He'll cam the engine to give you the best NA performance you're looking for and not worry about the NOs.
    I agree and was thinking the same thing. A dual plate on a T ram would probably make as much or more than a fogger on the single carb deal and be easier. But it lacks the "bling" Plus you have to add in the extra cost of another carb, and good t ram is a little more money. But I agree, at that N2O level, the best N/A engine you can build is the best path.
    Some of the worst running engine I have ever seen were "N2O cammed" off the bottle. Anything feels like a huge boost of power when its that much of a dog off the bottle.



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    Last edited by gn7; 11-14-2013 at 06:30 PM.

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    Quote Originally Posted by BOYWONDER View Post
    my goal was 600 n/a and 900-1000 on the bottle.is it possible to contact you and maybe put together a whole top end package, its a gm block 4 with lunati rotating assembly. once again I would like a very drivable package off the bottle. I live right near a lake (camp far west) were the law is pretty flexible as in it will spend most of the time runnin around vs all out racing. thnks for all your help, guys like the ones on here are very helpful that way I can spend my money once not twice..... thnks. Eric.
    Glad to help. Sent you a PM. We can certainly help you put something together.
    If God is your co-pilot, change seats!
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