Intake Upgrade ?s
Thread Starter
Drifting
Joined: Nov 2000
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From: Honolulu Hawaii
Intake Upgrade ?s
I have been tossing around the idea to change my Performer intake manifold for some time now. Thought about going to a low rise single plane or hi-rise dual plane. Hood clearance issues, changing carb type, throttle response, vacuum fittings, etc. etc. etc., keeps me going around in a circle. Its time to make up my mind. What are your thoughts or suggestions for a manifold? I’m planning on cutting back a bit on street driving and putting a little more emphasis on strip use. That should bring me to about a 50/50 street/strip percentage use. All ideas welcome!
Safety Car
Joined: Aug 2001
Posts: 3,683
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From: Waterford Mi
Re: Intake Upgrade ?s (nunus79)
I don't know why you would change to a single plane, the porformer increases torque though out the RPM range. The benifit of going to a high rise would incease the top end if the motor would allow it but some low-end torque could be lost. What is your 0-60 times?
Drifting
Joined: Mar 2001
Posts: 1,395
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From: Indiana
Re: Intake Upgrade ?s (nunus79)
Nunus, I was running the performer for many years up until last christmas. I then switched to the Torquer II. With the cam I am running, I really didn't see any difference in low end torque. With the cam you are currently running, you may not be as lucky. I ran a similar cam to yours years ago and bought a used Holley street dominator intake(old single plane style). That intake was only on my car for two days before I replaced it. It absolutely destroyed my power band. Have you considered replacing the cam at the same time. A more aggresive cam can still be very streetable and give you the performance you seek for the track. With the 3.55 gears, A low rise single plane and matching cam would work well.
Drifting
Joined: Sep 1999
Posts: 1,411
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From: Wylie TX
Re: Intake Upgrade ?s (tsw71)
I went through quite a bit when I was selecting my manifold. Basically, I looked into the following (I appologize for the bad formatting):
Manifold RPM Range Front/Rear Height
Edel Perf RPM, Dual, (7101) 1500 - 6500 4.0/5.3
Edel Torker II, Single, (5001) 2500 - 6500 3.53/4.63
Weiand Stealth, Dual, (8016) Idle - 6800 4.18/4.5
Weinad Team G Street Ram, Single, (7525) 2000 - 6500 3.5/4.5
Holley Street Dominator, Dual, (300-36) Idle - 7200 4.44/5.33
I ended up choosing the Team G. A big player in my decision was the height, as I needed it to fit under my stock '69 small block hood. It also helped that David Vizard stated that this manifold gives near dual plane torque at low RPMs. Don't let a single plane scare you. Also check out the latest CHP magazine. They run a LT4 HOT cam'ed, Vortec head'ed engine with both a Perf RPM and a Victor Jr from 2500 up and the Victor Jr run only lost 10 ft/lb of torque, which equates to less than 3% difference.
Manifold RPM Range Front/Rear Height
Edel Perf RPM, Dual, (7101) 1500 - 6500 4.0/5.3
Edel Torker II, Single, (5001) 2500 - 6500 3.53/4.63
Weiand Stealth, Dual, (8016) Idle - 6800 4.18/4.5
Weinad Team G Street Ram, Single, (7525) 2000 - 6500 3.5/4.5
Holley Street Dominator, Dual, (300-36) Idle - 7200 4.44/5.33
I ended up choosing the Team G. A big player in my decision was the height, as I needed it to fit under my stock '69 small block hood. It also helped that David Vizard stated that this manifold gives near dual plane torque at low RPMs. Don't let a single plane scare you. Also check out the latest CHP magazine. They run a LT4 HOT cam'ed, Vortec head'ed engine with both a Perf RPM and a Victor Jr from 2500 up and the Victor Jr run only lost 10 ft/lb of torque, which equates to less than 3% difference.
Thread Starter
Drifting
Joined: Nov 2000
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From: Honolulu Hawaii
Re: Intake Upgrade ?s (Chris A)
Redwing
60 ft has been 2.1 w/single exhaust & 2.0 w/hedders. I have lousy traction when brake-loading the converter so I leave the line at idle with a throttle stab and some wheel spin. I’m thinking that the single plane might allow me to brake-load the converter and leave the line harder.
Tom
I’ve always been open ears to what you have to say. What you’re saying now sure sounds good. I have been eyeballing that Torquer Performance package, intake, cam, & carb, setup. Might be the best way to go???
Chris
Good to know someone else has gone thru this exercise and made a decision. My thoughts always start with a single plane, then go to a single plane with plenum divider plate, then go to a large plenum dual plane, then back to single planes. Throw cost considerations in there and it becomes a mad cycle. You’ve boosted my confidence level in single planes!
60 ft has been 2.1 w/single exhaust & 2.0 w/hedders. I have lousy traction when brake-loading the converter so I leave the line at idle with a throttle stab and some wheel spin. I’m thinking that the single plane might allow me to brake-load the converter and leave the line harder.
Tom
I’ve always been open ears to what you have to say. What you’re saying now sure sounds good. I have been eyeballing that Torquer Performance package, intake, cam, & carb, setup. Might be the best way to go???
Chris
Good to know someone else has gone thru this exercise and made a decision. My thoughts always start with a single plane, then go to a single plane with plenum divider plate, then go to a large plenum dual plane, then back to single planes. Throw cost considerations in there and it becomes a mad cycle. You’ve boosted my confidence level in single planes!
Burning Brakes
Joined: Dec 1999
Posts: 845
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From: Ventura Harbor CA California
Re: Intake Upgrade ?s (nunus79)
Chris was kind enough to share the height data. If the 79 and 73 hoods are the same (I believe they are) you can stuff alot and close the hood. The Torquer II has small flat runners and ports. I've never seen the Team G but the height says flat runners. The Holley,Wieand 300-36 with a 1/2in nitrous plat and a 2.3in filter will fit under the stock hood. I'm not sure on the height difference between the Q-jet and the Edelbrock. There is .100 clearance at 2:00 and .375 at 9:00. There was no difference on the dyno between a 2.3x14 K&N and no air cleaner. You will give up no bottom end and you will not out rev this manifold with a cam that will open your headlights.
The rest of the story!
You've got to run poly or ridged mounts. But you need to do this anyways. :flag
The rest of the story!
You've got to run poly or ridged mounts. But you need to do this anyways. :flag
Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,361
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From: Honolulu Hawaii
Re: Intake Upgrade ?s (7Bob3)
Bob
The 300-36 is the manifold that the guy at the Speed shop recommended. But I dismissed it because of the height & hood clearance issue. Poly/solid mounts is something I haven't factored yet. Good point. Thanks for the tip. Now the cycle begins again.
The 300-36 is the manifold that the guy at the Speed shop recommended. But I dismissed it because of the height & hood clearance issue. Poly/solid mounts is something I haven't factored yet. Good point. Thanks for the tip. Now the cycle begins again.
Race Director
Joined: Apr 2000
Posts: 17,676
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Re: Intake Upgrade ?s (nunus79)
Swapped my Performer for a RPM Air Gap in my '80. I would have been happy with just a small
power increase but what a difference this manifold makes with my setup, especially over
3000 RPM.
Had to use a low profile K&N setup for an air cleaner with an Extreme top but I did the calculations
and it's good for 5500 RPM.
power increase but what a difference this manifold makes with my setup, especially over
3000 RPM.
Had to use a low profile K&N setup for an air cleaner with an Extreme top but I did the calculations
and it's good for 5500 RPM.
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Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,361
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From: Honolulu Hawaii
Re: Intake Upgrade ?s (MotorHead)
The Air Gap is the one that I feel most confident with. It also has the features that I was looking for, larger runner ports, notched plenum divider, & hot oil separation. Then I hear results like yours and I get hooked on it. I was waiting for Edelbrock to come out with a dual bolt pattern carb flange but got tired of waiting. Plus I'm headed up to Reno and hope to meet Gkull. He has been kind enough to offer to take me to Summit to go parts hunting. I'm headed to the airport in a few hours and won't be checking back on the forum for about a week. Thanks all for your suggestions! :seeya
Team Owner
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Intake Upgrade ?s (Chris A)
Chris A. I have a question about your team G part number. Do you by chance have some kind of a none air gapped manifold? I went out to thier site and couldn't find the number you listed.
I have the team G and I would have to go out in the parking lot and look. But it is either a a 7530 or 7532 They are are pretty tall air gapped single planes with 2800-7200 and 2800-7800 power range. If I didn't have a cowl induction hood lowered motor and 3X14 dropped base air cleaner there is no way it would fit under my hood.
I have the team G and I would have to go out in the parking lot and look. But it is either a a 7530 or 7532 They are are pretty tall air gapped single planes with 2800-7200 and 2800-7800 power range. If I didn't have a cowl induction hood lowered motor and 3X14 dropped base air cleaner there is no way it would fit under my hood.
Drifting
Joined: Sep 1999
Posts: 1,411
Likes: 1
From: Wylie TX
Re: Intake Upgrade ?s (gkull)
George,
The manifold is: http://www.holley.com/HiOctn/ProdLin...AMSM/7525.html
It's got the EGR and heat crossover crap, so I'm pretty sure it's not an Air Gap type. I only went with this manifold because I'm running a Q-Jet. If not, I probably would have gone with the 7530 as it's only .13"/.06" taller front/back.
The manifold is: http://www.holley.com/HiOctn/ProdLin...AMSM/7525.html
It's got the EGR and heat crossover crap, so I'm pretty sure it's not an Air Gap type. I only went with this manifold because I'm running a Q-Jet. If not, I probably would have gone with the 7530 as it's only .13"/.06" taller front/back.
Team Owner
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Intake Upgrade ?s (Chris A)
That a much better way to look at them. I was able to just pluggin my part number 7532 and I was able to pull up mine. No EGR or Cross over for me.
http://www.holley.com/HiOctn/ProdLin...AMSM/7532.html
I'm meeting up with Nunus and another forum member for dinner tonight. Summit Racing is 10-15 minutes from his casino hotel. So I told them to bring a shopping list. That's how I'm able to buy 2-3 manifolds at a time and take them home and look at them. Make a desision on what to keep then take the others back.
[Modified by gkull, 1:11 PM 9/21/2001]
http://www.holley.com/HiOctn/ProdLin...AMSM/7532.html
I'm meeting up with Nunus and another forum member for dinner tonight. Summit Racing is 10-15 minutes from his casino hotel. So I told them to bring a shopping list. That's how I'm able to buy 2-3 manifolds at a time and take them home and look at them. Make a desision on what to keep then take the others back.
[Modified by gkull, 1:11 PM 9/21/2001]
Drifting
Joined: Sep 1999
Posts: 1,411
Likes: 1
From: Wylie TX
Re: Intake Upgrade ?s (gkull)
Boy, I'd be in real trouble if I lived that close to Summit Racing.
George, how did you "lower your engine"? I'm a little worried about my hood clearance. I did have this manifold on my original 350 and had about 1 1/4" of clearance. Due to my new fuel lines and AN connector, I had to go to a filter base which does not drop down quite as much (it is 1/2" higher). Also, I've replaced my motor mounts and am running a completely different block and heads. My hood is currently off, but it looks like I may have a problem, I should see for sure tomorrow.
[Modified by Chris A, 1:32 PM 9/21/2001]
George, how did you "lower your engine"? I'm a little worried about my hood clearance. I did have this manifold on my original 350 and had about 1 1/4" of clearance. Due to my new fuel lines and AN connector, I had to go to a filter base which does not drop down quite as much (it is 1/2" higher). Also, I've replaced my motor mounts and am running a completely different block and heads. My hood is currently off, but it looks like I may have a problem, I should see for sure tomorrow.
[Modified by Chris A, 1:32 PM 9/21/2001]
Team Owner
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From: All in!
Cruise-In IV Veteran
St. Jude Donor '03-'10
Re: Intake Upgrade ?s (MotorHead)
I just noticed they finally came out with a Performer RPM Q-Jet. wonder if an RPM Q-Jet Air-Gap is soon to follow. I'd hate to have to buy a new carb just to get the RPM Air-Gap...
Team Owner
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From: All in!
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St. Jude Donor '03-'10
Re: Intake Upgrade ?s (MotorHead)
Chris - Carb is Holley 600CFM Model 4160, Part # 080457S and I don't know the height.
Team Owner
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Intake Upgrade ?s (Chris A)
Chris the way the hood slopes. The front top of the air cleaner is the place where it will touch and in my case I use a 14X3 K&N. So I did two things I found poly mounts which were about 1/2 inch lower than stock rubber. Then I also shimmed up the 700R4 tail shaft which made the engine more level.
My old 750 edelbrock and victor jr. would just touch the hood isulation on a stock 79 hood.
My old 750 edelbrock and victor jr. would just touch the hood isulation on a stock 79 hood.
