dual plane conversion anyone done this?
Originally Posted by T/A KID
Nitro daves makes an Elbow as well to use the factory TB's on the single plane conversion like Fastfatboy, I done the Single plane conversion back in the day when Guys like Tony Shepard where doing it (shortly after him) and we didn't have the Elbows to use LTX TB's. We had to convert to a 90mm Ford Accufab TB, and use a Ford IAC and TPS setup (plug and play from a nonvendor)
I had a Super Vic setup that I had $1,500 into it and I was not even finished, the new owner got the thing powdercoated, and had even more work done on it.
Heres a pic
I can do a Badass Single plane setup know using my Monoblade and most of the factory stuff for around a 1,000.
However I think I would try a Dual plane from GM (ported) before I would try another single plane just for fun. The new owner of my intake loss 10lbs of TQ and hp everywhere below 5500, by 7000 though he gained 30+rwhp and was still climbing.
For a street car I think the dual plane Gm intake converted would be a nice intake, haven't ever tested this but in theory it would work
EDIT
Found the link to the Elbow Nitro Daves makes
http://web.camaross.com/forums/showt...ight=Lt1+Elbow
Have the intake converted to EFI, use a LTX TB ultilizing the factory IAC, TPS, and Run a vaccum line to the Map, on the back of the Elbow have the Vaccum Fittings for everything like on the stock intake.
I had a Super Vic setup that I had $1,500 into it and I was not even finished, the new owner got the thing powdercoated, and had even more work done on it.
Heres a pic
I can do a Badass Single plane setup know using my Monoblade and most of the factory stuff for around a 1,000.
However I think I would try a Dual plane from GM (ported) before I would try another single plane just for fun. The new owner of my intake loss 10lbs of TQ and hp everywhere below 5500, by 7000 though he gained 30+rwhp and was still climbing.
For a street car I think the dual plane Gm intake converted would be a nice intake, haven't ever tested this but in theory it would work
EDIT
Found the link to the Elbow Nitro Daves makes
http://web.camaross.com/forums/showt...ight=Lt1+Elbow
Have the intake converted to EFI, use a LTX TB ultilizing the factory IAC, TPS, and Run a vaccum line to the Map, on the back of the Elbow have the Vaccum Fittings for everything like on the stock intake.
The thing about the GMPP intake was I would like to try and save some money on the conversion But I do not want to lose any torque. That guy lost 10ft lbs. But gained 30 horse.
My current set up wouldn't gain much either way but the stroker will.
Now I only plan on turning to about 7000 rpm. My stall flashes to about 4200 rpm already.
Since I'm already at 4200+ would I notice a difference in between a single and dual plane?
Only revving to 7000 would it gain much going to a single plane?
Just looking at options at this piont.
Last edited by jakesz28; Jun 10, 2007 at 12:18 PM.
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Joined: Sep 2005
Posts: 503
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From: TX
Originally Posted by thesoundandthefury
All the people who have done this conversion haven't used elbows just because they look nice....
See how close this elbow sits to the front edge of the cowl?:
Whatever gets put over the opening in the top of the intake is going to have to angle forward. A big honkin' carb hat that wraps all the way around the perimeter of the throttle body isn't going to clear.
If you also notice, the intake opening sits just far enough back that the cowl overhangs about half of it. So lets say that you do a crapload of trimming to a carb hat and manage to get it short enough that it fits underneath the cowl. If we take it for granted that afterwards you're still able to get any decent kind've seal with it, then we're onto Problem #2: how are you going to get it on and off without dropping the motor?
See how close this elbow sits to the front edge of the cowl?:
Whatever gets put over the opening in the top of the intake is going to have to angle forward. A big honkin' carb hat that wraps all the way around the perimeter of the throttle body isn't going to clear.
If you also notice, the intake opening sits just far enough back that the cowl overhangs about half of it. So lets say that you do a crapload of trimming to a carb hat and manage to get it short enough that it fits underneath the cowl. If we take it for granted that afterwards you're still able to get any decent kind've seal with it, then we're onto Problem #2: how are you going to get it on and off without dropping the motor?
But all that kinda proves my point. Thats alot of time and money spent to gain 20hp/30tq with a dual plane intake on a bolt on car. After all that you could of bought some ported heads and a cam. Most people that do these type of conversions are using single plane intakes with motors that are gonna see high rpms. The stock LT1 intake is more than enough for most bolt-on to mild head/cam cars.
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Joined: Feb 2006
Posts: 876
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From: Catlettsburg, Ky
Originally Posted by GMRL
Thats alot of time and money spent to gain 20hp/30tq with a dual plane intake on a bolt on car. After all that you could of bought some ported heads and a cam. Most people that do these type of conversions are using single plane intakes with motors that are gonna see high rpms. The stock LT1 intake is more than enough for most bolt-on to mild head/cam cars.
but you've gotta admit, a single plane looks 10x better than a stocker, heck, I'd just about put one on just for the looks and the unique factor (no one around my area has done something like this)
Originally Posted by GMRL
Well, that looks like a single plane intake on an LS1 in that pic there.
But all that kinda proves my point. Thats alot of time and money spent to gain 20hp/30tq with a dual plane intake on a bolt on car. After all that you could of bought some ported heads and a cam. Most people that do these type of conversions are using single plane intakes with motors that are gonna see high rpms. The stock LT1 intake is more than enough for most bolt-on to mild head/cam cars.
But all that kinda proves my point. Thats alot of time and money spent to gain 20hp/30tq with a dual plane intake on a bolt on car. After all that you could of bought some ported heads and a cam. Most people that do these type of conversions are using single plane intakes with motors that are gonna see high rpms. The stock LT1 intake is more than enough for most bolt-on to mild head/cam cars.
I too spray and would love to go direct port then a second stage. But on this motor I would like to spray it with a 200-225 shot. But the LT intakes don't distribute nitrous very well. So I'm going to give it the 200. On the other motor if I get around to it it will have a direct port kit on it.
I fill if your going to go two stages you will get better distibution with a dual plane or single plane intake. Then I could run two stages up to 250 horse with less to worry about(without going DP).
I fill if your going to go two stages you will get better distibution with a dual plane or single plane intake. Then I could run two stages up to 250 horse with less to worry about(without going DP).
