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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Quote:
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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I like Adaptronic and use that on one of the cars.
I just picked up an aluminum intake and a complete Tbitz setup for just over $1200. I was planning on assembling and may still go ITB, but that was a good deal and gets me up and running quickly. I havent finished it yet but it seemed like a sound plan at the time...will need to dust off my MS skills....
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,141
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Then do tell, or this one of those proprietary things?
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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You can build your own intake, even out of mild steel.
Below is a link to a subi 4 cylinder build and a 6 cylinder build, you would have to change the design for the 911 fan, but this does give you an idea of how to do it. If you don't like the idea of mild steel use stainless. SDS EM-2: Aircraft SDS EM-4: Aircraft
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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Quote:
__________________
2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
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The 3.6 manifold will not fit a 3.0 or 3.2 engine. The 3.6 uses a 3-bolt head attachment on the lower injector boss mount. All pre-3.6 911 engines use a two bolt head attachment.
The 3.2 manifold is your choice if you want a single throttle body, common plenum intake system. They bolt on to any earlier engine but the head ports will not directly match. Typically one would taper the intake insulating spacer as a method to smooth airflow without drastically porting the heads for detrimental flow effects. The 3.6 manifold is unique in that it has runners that drop straight down to the heads. The 3.2 has a curved section directly above the injector boss. The 3.6 manifold works well if you want to adapt it on the top of an individual throttle body setup. This gives you throttle response of ITBs with the longer air path and resonant tuning of the later manifolds for increased mid range torque. Best of both worlds. Nothing secret here. Look at any spec911 or many of the fabulous Rothsport built 911s. Lots of good things going on in that shop.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine #projectminne classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks |
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Slippery Slope Expert
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Thanks for that information; will save me the trouble of retrieving it from storage! I may look for a 3.2, but will probably go with a gutted SC system or ITB's.
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Registered
Join Date: Jan 2015
Posts: 1,499
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"that some cool stuff right there"
x2. The first and second runner, esp. the first, after the TB will probably be starved though, esp. at higher RPM. At the higher velocity the air tends shoot by the first runners and pack at the rear of the plenum so the first cylinders run rich. Hopefully he's watching EGT on the back cylinders, esp. on a plane. Nice work though. The 3.2 intake tends to mitigate this problem by having 90 deg entrance into each bank plenum from the TB but then there is still some higher flow on cyls. 2 and 5. |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,141
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Slippery Slope Expert
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Possibly; we're thinking about that.
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Turbonut
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With the features available and ease of use and tune, VEMS is by far one of the best systems. Costs just a bit more than 1000usd delivered.
Can use pretty much any sensor you want (no need for proprietary ones) and allows you to use ANY injector/ignition system you want, including 12x COP without any external boxes etc. Has onboard dual lambda and wonderful strategy for tuning ITB car (alpha-n+hybrid load with boost compensation), be it normally aspirated or boosted.
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'83 924 (2.6 16v Turbo, 530hp),'67 911 hot-rod /2.4S, '78 924 Carrera GT project (2.0 turbo 340 hp), '84 928 S 4.7 Euro (VEMS PnP, 332 HP), '90 944 S2 Cabriolet http://www.facebook.com/vemsporsche |
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Never used it, but the south african Gotech MFI is something like $500USD shipped.
I asked, shipping to the US or canada is 1000rand. It's the lowest price system I've ever seen. Here is their FB page https://www.facebook.com/gotechecu/?fref=ts
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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Registered
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Gotech seems interesting and know a couple that have used it..
I just really don't want to smell like gas when I eventually drive my conversion.. The webers will probably be used at first and convert later.. Great info everyone.
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Ben 89 944,85.5 944 914-6 2.4s GT tribute. 914-6werkshop.com |
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Registered
Join Date: Apr 2011
Location: behind the redwood curtain, (humboldt county) california
Posts: 1,434
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HP/Torque/Driveability difference between ITB and "Plenum"
Is there a significant difference between ITB systems and single plenum systems??
Obviously the ITB new would cost more than a used factory plenum but, how much difference is there, is it worth the difference?? chris |
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Quote:
ITB's and hot cams have poor vacuum and therefore are technically harder to tune.
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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Registered
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Not necessarily harder to tune, only if you try to tune using MAP as load. Using TPS as load will make the tuning process much smoother.
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-Jayson 1976 911S Signature Edition - 3.2SSt (JE 98mm 9.5:1 pistons, 964 Cams, Carrillo Rods, ARP Head Studs, AASCO Valvetrain, 3.2 Carrera Manifold, ID725's, B&B Headers, TS HyperGate45 Gen V, TS RacePort, BW S360, AEM Infinity 506, E85) IG: Signature_911 |
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Slippery Slope Expert
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Actually, the 3.6 manifold will fit quite nicely on the 3.0 engine, if you have the adapters with injector mounting boss we had made for use at SoK for putting our own manifold on the 3.6. And I have some of those.
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