Few questions - Camaro '86 - intake, tranny, NOS
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Joined: Feb 2005
Posts: 27
From: KRANJ - SLO - EUROPE
Few questions - Camaro '86 - intake, tranny, NOS
Greetings!
My problem here in Slovenia is that there is no one to ask for any advice, because there ain’t no cars like these here and if they are, they are stock... So I turn to you with several questions:
1. I’ve decided to install a nitrous system kit. I’ve looked over a few catalogs and found a suitable kit for my car from NX. It’s called NX Holley Gemini Twin stage 6 (50-300HP). In case anything should not be suitable, I wrote an email to NX asking if this kit is suitable. The answer was this:
"With a high-end plate system, a competition-style, single-plane, square-flange intake like an Edelbrock Victor, Holley Strip Dominator, or Dart is recommended. A dual-plane's two different plenum floor heights, center divider, and unequal runner lengths makes it difficult if not impossible to achieve optimum spray pattern distribution, particularly at over-200hp power-levels. You need to be able to see all eight ports with the bars for optimum
distribution"
It looks like I’ll have to replace my intake manifold. When I reviewed some data regarding single plane manifolds I noticed that most of them have operating range at 3500rpm and above. The problem is that my engine is designed to work between 1800 and 6000rpm. I need to know how will my engine go along with such manifold and how will it behave under 3500rpm? I like Edelbrock Victor Jr. series or Edelbrock Super Victor series the most.
I also found 2 models from Weiand that have lower range powerband (Weiand 7532 -> 2.800 - 7200 RPM and Weiand X-Celerator 7546 -> 1500-6000 RPM).
Which single plane intake manifold do you recommend for my engine configuration?
2. A question regarding tranny (TH-350). I’ve already installed TCI Master Racing Ovehaul kit, B&M transpak shift kit and Adjustable Transmission Modular Valve. How can I set this gearbox to change gear upwards at aprox. 6000+RPM and not at 5500 like it does now.
3. Is it worth installing roller rockers with 1.6:1 ratio? How much will I gain with that?
My engine configuration is as follows:
Engine:
Chevy SB 383 stroker, Edelbrock RPM AirGap dual plane intake manifold, Dart Iron Eagle Heads with int:2.02 exh:1.60, roller rockers 1.5:1 ratio, carb Mighty Demon 825, Cam: CompCams Extreme Energy XE274H (duration @050: in:230, ex:236, lift in:.490, ex:.490), full length Hooker Headers, HEI ignition, forget pistons, forget crank, forget connection rods...
Tranny: TH-350 with TCI Master Racing Overhaul kit, B&M transpak shift and Adjustable Transmission Modulator Valve, B&M Holeshot 2400 Torque Converter
Rear end: GM 10 bolt, 3.23 gear ratio, Auburn gear Pro series LSD
Looking forward to your kind answers and thank you for your time...
_BANDIT_
My problem here in Slovenia is that there is no one to ask for any advice, because there ain’t no cars like these here and if they are, they are stock... So I turn to you with several questions:
1. I’ve decided to install a nitrous system kit. I’ve looked over a few catalogs and found a suitable kit for my car from NX. It’s called NX Holley Gemini Twin stage 6 (50-300HP). In case anything should not be suitable, I wrote an email to NX asking if this kit is suitable. The answer was this:
"With a high-end plate system, a competition-style, single-plane, square-flange intake like an Edelbrock Victor, Holley Strip Dominator, or Dart is recommended. A dual-plane's two different plenum floor heights, center divider, and unequal runner lengths makes it difficult if not impossible to achieve optimum spray pattern distribution, particularly at over-200hp power-levels. You need to be able to see all eight ports with the bars for optimum
distribution"
It looks like I’ll have to replace my intake manifold. When I reviewed some data regarding single plane manifolds I noticed that most of them have operating range at 3500rpm and above. The problem is that my engine is designed to work between 1800 and 6000rpm. I need to know how will my engine go along with such manifold and how will it behave under 3500rpm? I like Edelbrock Victor Jr. series or Edelbrock Super Victor series the most.
I also found 2 models from Weiand that have lower range powerband (Weiand 7532 -> 2.800 - 7200 RPM and Weiand X-Celerator 7546 -> 1500-6000 RPM).
Which single plane intake manifold do you recommend for my engine configuration?
2. A question regarding tranny (TH-350). I’ve already installed TCI Master Racing Ovehaul kit, B&M transpak shift kit and Adjustable Transmission Modular Valve. How can I set this gearbox to change gear upwards at aprox. 6000+RPM and not at 5500 like it does now.
3. Is it worth installing roller rockers with 1.6:1 ratio? How much will I gain with that?
My engine configuration is as follows:
Engine:
Chevy SB 383 stroker, Edelbrock RPM AirGap dual plane intake manifold, Dart Iron Eagle Heads with int:2.02 exh:1.60, roller rockers 1.5:1 ratio, carb Mighty Demon 825, Cam: CompCams Extreme Energy XE274H (duration @050: in:230, ex:236, lift in:.490, ex:.490), full length Hooker Headers, HEI ignition, forget pistons, forget crank, forget connection rods...
Tranny: TH-350 with TCI Master Racing Overhaul kit, B&M transpak shift and Adjustable Transmission Modulator Valve, B&M Holeshot 2400 Torque Converter
Rear end: GM 10 bolt, 3.23 gear ratio, Auburn gear Pro series LSD
Looking forward to your kind answers and thank you for your time...
_BANDIT_
Last edited by _BANDIT_; Dec 12, 2005 at 02:02 PM.
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Posts: 71,115
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Re: Few questions - Camaro '86 - intake, tranny, NOS
The best thing you could possibly do would be to split this single post into several individual posts, and put each one on the correct forum.... example: N2O on the "N2O Tech" forum, the TH350 question on the "Drivetrain" forum, and leave the roller rockers as part of this forum.
From my experience, the longer a post is, and the more different topics it contains, the less repsonses you will get. If you want, I will copy this post to the N2O and Drivetain forums, then edit out the material that does not apply to that forum.
This has to be just about the baddest car in all of Slovenia...
From my experience, the longer a post is, and the more different topics it contains, the less repsonses you will get. If you want, I will copy this post to the N2O and Drivetain forums, then edit out the material that does not apply to that forum.
This has to be just about the baddest car in all of Slovenia...
Thread Starter
Registered User
Joined: Feb 2005
Posts: 27
From: KRANJ - SLO - EUROPE
Re: Few questions - Camaro '86 - intake, tranny, NOS
Originally Posted by Injuneer
The best thing you could possibly do would be to split this single post into several individual posts, and put each one on the correct forum.... example: N2O on the "N2O Tech" forum, the TH350 question on the "Drivetrain" forum, and leave the roller rockers as part of this forum.
You can erase this thread as soon as I do that.
Originally Posted by Injuneer
This has to be just about the baddest car in all of Slovenia...
Thank's!
_BANDIT_
Last edited by _BANDIT_; Dec 12, 2005 at 05:17 PM.
Registered User
Joined: May 2004
Posts: 2,001
From: Bay Area, CA
Re: Few questions - Camaro '86 - intake, tranny, NOS
The air gap manifold has bungs on each runner for fuel injection or NOS, use those to get proper distribution. Go through NOS brand as opposed to NX, they should be able to set you up with a kit for port injection. That way you keep your intake that is correct for the powerband of that motor. The manifold will need to be removed to set it up correctly.
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