 My 2.4 Six Engine, Manufacturing prototype intake adapters. |
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| McMark |
  Jul 15 2013, 07:30 PM
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#1
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914 Freak!  Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None  |
I picked up this 2.4 six awhile back and I'm gonna use this thread as I develop the engine which will eventually go in my gold car.
I'm starting a little out of order, but too bad. (IMG:style_emoticons/default/tongue.gif) So I have this aluminum flywheel. No manufacturer stamps or numbers on it whatsoever. I'm thinking that it might be too light for a street car, so I may not use it. It's about 3lbs by itself. I've got a 914 clutch adapter (basically a cut down 914/4 flywheel that bolts to the outer edge) and that brings the total flywheel weight to about 10lbs. I want a streetable car, is this thing too light? Attached image(s)   
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| McMark |
Aug 5 2013, 11:30 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The $2500 carbs I don't have? (IMG:style_emoticons/default/blink.gif) Life is so simple when you're spending someone else's money. (IMG:style_emoticons/default/laugh.gif) Plus, what do I learn from bolting on carbs. I'm not building a car. I'm building an education.
I've been wanting to start familiarizing myself with AutoCAD and this seemed like a good project for this since the intake adapters I'll need are relatively simple. I started with an intake gasket and scanned it. Then cheated and drew the outline in Illustrator since I can bang that out in about 2 minutes. Then imported that into AutoCAD and did the extrusion. It's pretty boring at this point. Gotta measure my actual intake port size, the OD of the throttle bodies, and decide on the height of the adapters I need/want. Then I'll start working on the actual tapered tube portion. Attached image(s) 
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| Trekkor |
Aug 9 2013, 03:25 PM
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#3
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
QUOTE(McMark @ Aug 5 2013, 10:30 PM)  The $2500 carbs I don't have? (IMG:style_emoticons/default/blink.gif) Life is so simple when you're spending someone else's money. (IMG:style_emoticons/default/laugh.gif) Plus, what do I learn from bolting on carbs. I was under the impression that this was an unknown condition motor that you were trying to determine whether or not it needed rebuilding. I have a set of carbs/manifolds you could borrow for testing off my 2.6 race motor. I still have that 6 into 1 tee pee off road exhaust for full effect...   KT |
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Posts in this topic
McMark My 2.4 Six Engine Jul 15 2013, 07:30 PM
ConeDodger Try it... Jul 15 2013, 07:37 PM BKLA :agree:
I have a lightened Patrick Motorsports f... Jul 15 2013, 07:47 PM sixnotfour your right at a stock 2.0 6 cylinder flywheel weig... Jul 15 2013, 08:04 PM brant old and new flywheels
of course we don't have... Jul 15 2013, 10:46 PM sixnotfour oh Brant that aluminum one is real vintage alright... Jul 15 2013, 10:48 PM brant its Frank Becks toss off.....
he went to a 4.5 di... Jul 15 2013, 10:49 PM pcar916 I've had a 6.75lb Patrick Motorsports aluminum... Jul 16 2013, 03:48 PM biosurfer1 Too light? I think you just killed a little part o... Jul 16 2013, 04:08 PM get off my lawn how light is your flywheel?
I'd say it's ... Jul 18 2013, 10:39 AM ChrisNPDrider My daily driver 914 turned cafe racer AX weekend w... Jul 19 2013, 10:20 AM GeorgeRud Figure that the heavy outer starter ring is at the... Jul 19 2013, 10:29 AM McMark Cool. Sounds like this flywheel will be fine. I ... Jul 19 2013, 11:26 AM JmuRiz With a 2.4 I'd go with longer to get a smidge ... Jul 19 2013, 12:04 PM BKLA :agree:
Love the polaris TB's! Great Ide... Jul 19 2013, 02:32 PM scotty b What cams are you using ? :confused: Jul 19 2013, 03:22 PM Dave_Darling Remember that the factory went to high-butterfly t... Jul 19 2013, 03:37 PM kg6dxn Longer runners will give you better low end torque... Jul 19 2013, 06:23 PM McMark Street engine. I like torque. Jul 19 2013, 06:41 PM r_towle 2 flanges cut.
Two pieces of tubing, cut stretched... Jul 19 2013, 08:37 PM JmuRiz Carbs for up to 3.0 are typically 40, but this siz... Jul 19 2013, 09:15 PM McMark Okay, time for another thought/question. The engi... Jul 26 2013, 08:08 PM
Mark Henry
Okay, time for another thought/question. The eng... Jul 26 2013, 09:51 PM kg6dxn Open it! You know you want to. DO IT!... Jul 26 2013, 09:40 PM rick 918-S Do a leak down first and make sure you "need ... Jul 26 2013, 10:02 PM McMark It's more about knowing what heads, cams, pist... Jul 27 2013, 02:58 AM Gary Hey Mark - is this the motor I dropped off? If so,... Jul 27 2013, 04:00 AM Eric_Shea What does this mean?
a. Port size 36X35 38mm int... Jul 27 2013, 10:14 AM sixnotfour that configuration only has about 8-1 compression.... Jul 27 2013, 10:33 AM Dr Evil :popcorn: Jul 27 2013, 11:22 AM Trekkor Bolt on a set of carbs and run it on the test stan... Jul 27 2013, 10:16 PM McMark Finished the intake drawing (I think). Now I need... Aug 9 2013, 01:15 AM jimkelly will those Polaris fuel injectors provide enough f... Aug 9 2013, 06:48 AM McMark The injectors are pretty standard. So I was alrea... Aug 9 2013, 10:39 AM polo classic Do you know what distance is from the throttle bod... Aug 9 2013, 12:33 PM McMark Not sure. I drew up 'shorties' because on... Aug 9 2013, 01:59 PM McMark Ahhh, thats makes more sense. ;) I expect it runs.... Aug 9 2013, 04:29 PM McMark Prototype printing underway (not by me). :boing: Aug 9 2013, 07:28 PM McMark All done an ready to ship to me. :boing: Aug 9 2013, 11:09 PM euro911 Cool.
What is the material, Mark? Aug 10 2013, 01:09 AM jimkelly why the groove seen from top? is it a two piece p... Aug 10 2013, 04:17 AM jpnovak I hope Mark doesn't mind my response. I am pr... Aug 10 2013, 06:18 AM Krieger Very cool to see the cutting edge printing edge a... Aug 10 2013, 09:27 AM McMark Thanks for chiming in Jamie. I didn't know if... Aug 10 2013, 09:39 AM polo classic Did you ever consider using Boxster/997/996 parts,... Aug 22 2013, 02:43 PM McMark Cool! Hadn't seen that. I'd like to t... Aug 22 2013, 05:23 PM tscrihfield This looks very cool! What are you going to h... Aug 22 2013, 05:37 PM McMark If the prototype adapters work ill send the CAD fi... Aug 22 2013, 06:24 PM jcd914
If the prototype adapters work ill send the CAD f... Aug 22 2013, 08:02 PM edwin This part has "home cast aluminium" writ... Aug 23 2013, 07:12 AM veekry9
This part has "home cast aluminium" wri... Oct 27 2013, 04:15 PM rhodyguy home cast? as in a garage? Aug 23 2013, 07:24 AM McMark Actually I do. Casting has been on my todo list fo... Aug 23 2013, 08:01 AM jbyron Looking at the pic, I'm concerned whether or n... Aug 23 2013, 09:38 AM GeorgeRud Yeah, it does look like you might have to lift it,... Aug 23 2013, 06:20 PM McMark George is thinking along the same lines as me. ;)
... Aug 23 2013, 06:29 PM McMark Quick update...
Intake manifolds are at the machi... Oct 26 2013, 10:59 PM tscrihfield
Quick update...
Intake manifolds are at the mach... Oct 26 2013, 11:28 PM veekry9 This is Great.
Thanks for showing the World the la... Oct 27 2013, 03:49 PM sixnotfour These are mine. A little different from Mark... Nov 8 2013, 02:03 PM 914Timo
These are mine. A little different from Mark... Nov 9 2013, 12:16 PM McMark Wow, looks great. Perfect timing, cause I just go... Nov 8 2013, 04:14 PM jimkelly absolutely beautiful :wub: Nov 8 2013, 04:15 PM sixnotfour sweet !! How are you adjusting the 2mm ... Nov 8 2013, 04:59 PM McMark TBD. I should actually have them in my hands in a... Nov 8 2013, 06:08 PM sixnotfour mine are machined aluminum, with the flanges welde... Nov 9 2013, 04:06 PM jpnovak Those look great! Nov 9 2013, 08:31 PM rick 918-S Nice projects :beer2: Nov 9 2013, 10:59 PM sixnotfour :beer2: Nov 17 2013, 03:52 PM Dave_Darling It looks cool, but what's the perforated metal... Nov 17 2013, 10:48 PM McMark Those are Jeffs, but it's a mount. It ties th... Nov 17 2013, 11:07 PM ConeDodger
Those are Jeffs, but it's a mount. It ties t... Nov 18 2013, 10:04 AM sixnotfour
Those are Jeffs, but it's a mount. It ties ... Nov 18 2013, 02:43 PM McMark Here's my adapters. Got a sample piece in bar... Nov 18 2013, 12:13 PM Series9 I REALLY like it!
:beer2: Nov 18 2013, 12:21 PM JmuRiz Very cool stuff, definitely keeping my eye on this... Nov 18 2013, 12:31 PM |
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