 Dave Hunt's 2270 on SDS.. First pull on the dyno, Dave is back at Aircooled Heaven! |
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| gregrobbins |
 Jan 17 2008, 10:32 PM
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#41
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Member: Team NARP  Group: Members Posts: 1,515 Joined: 23-March 04 From: Arizona Member No.: 1,844 Region Association: Southwest Region  |
Fly wheel horse power--measured on an engine dyno
Rear wheel horse power--measured on a chassis dyno with the motor in the car and taking readings off the rear tires. |
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| Air_Cooled_Nut |
Jan 17 2008, 10:34 PM
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#42
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914 Ronin - 914 owner who lost his 914club.com Group: Members Posts: 1,748 Joined: 19-April 03 From: Beaverton, Oregon Member No.: 584 Region Association: None |
Ah, thanks. I'm used to BHP (brake hp, engine dyno) and WHP (wheel hp, chassis).
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| Krieger |
Jan 17 2008, 10:37 PM
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#43
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Advanced Member Group: Members Posts: 4,726 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None 
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Fly wheel horse power, rear wheel horse power. GOOD JOB JAKE/DAVE
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| rick 918-S |
Jan 17 2008, 11:05 PM
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#44
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Hey nice rack! -Celette Group: Members Posts: 20,489 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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My hats off to you guys. Nice work.
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| Zimms |
Jan 18 2008, 04:47 AM
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#45
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Senior Member Group: Members Posts: 1,413 Joined: 11-February 06 From: Michigan Member No.: 5,565 Region Association: Upper MidWest
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QUOTE(Jake Raby @ Jan 17 2008, 09:51 PM)  The 901 tranny is the most power sucking box I have experienced yet, the Type 1 tranny loses 1/2 as much power at the rear wheels as the 901.. Jake Can a 915 be used adn have you had any results with it? Thanks, Mark |
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| Joe Ricard |
Jan 18 2008, 05:47 AM
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#46
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
How do you put a bug box in a 914? It would be better all around for Autocross. Only need 3 gears mostly but occasionaly 4.
lighter and LSD's are cheaper. HMMMMMM. |
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| ottox914 |
Jan 18 2008, 07:14 AM
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#47
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The glory that once was. Group: Members Posts: 1,302 Joined: 15-December 03 From: Mahtomedi, MN Member No.: 1,438 Region Association: Upper MidWest |
About the bug box... had some of the same thoughts, but never really researched it out...
Jake/Dave- I see ITB's on the pics of the test engine. How big are they? I'm curious as to what size you used to compair to the ones I bought from you a couple yrs back. Jake- I see the bracket for the SDS crank sensor is mounted on the alternator side, and you used an old A/C pulley for the mags. I used the same pulley. There are 2 that styles of puley that were used, one had angled sides, the other was flat. I see a run coming on the flat style pulley. I had considered the mounting bracket system you used but discounted it as I wanted the sensor and wireing as far away from the alternator as possible to avoid any electrical interferance issues. Looks like that mounting position is working fine w/no electrical problems for you. Thats great, as it makes for an easier install on the next engine. My SDS thread below has pics of how we did the install on my project. Dave- I'd pay close attention to your actual routing of those sensor cables as they go back to the ECU when you fully dress the motor and get it back in your car. |
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| Jake Raby |
Jan 18 2008, 07:37 AM
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#48
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
QUOTE Jake Can a 915 be used adn have you had any results with it? Thanks, Mark Yes, and Yes... I even have a special flywheel that uses the 915 clutch pack and bolts right to a TIV engine. I am using a 915 in my 60' beetle with this same arrangement coupled to my 280 HP 2.8L N/A pump gas engine. QUOTE Jake/Dave- I see ITB's on the pics of the test engine. How big are they? I'm curious as to what size you used to compair to the ones I bought from you a couple yrs back. These are 45s. Most of the time a 40mm T/B works better with this combo, but Dave's engine is "different". QUOTE Jake- I see the bracket for the SDS crank sensor is mounted on the alternator side, and you used an old A/C pulley for the mags. I used the same pulley. There are 2 that styles of puley that were used, one had angled sides, the other was flat. Correct.. Most of the angled pulleys came on Bus engines. QUOTE I see a run coming on the flat style pulley. I have dozens of them. Making a laser cut replica of it with the holes for the magnets built right in is what I'll do as well as having the bracket laser cut as well. This will allow for absolute bolt on capability for anyone. QUOTE I had considered the mounting bracket system you used but discounted it as I wanted the sensor and wireing as far away from the alternator as possible to avoid any electrical interferance issues. The wires are shielded and the alternator doesn't have high voltage interference.. I knew we'd be OK because an alternator doesn't even generate enough static to make my CHT sensors and thermocouples do wacky things... QUOTE Looks like that mounting position is working fine w/no electrical problems for you. None at all... Dave wondered how well it would work, but I told him it would be fine. QUOTE Thats great, as it makes for an easier install on the next engine. My SDS thread below has pics of how we did the install on my project. We have never done it the same way twice with stock cooling.. Now we'll never do it another way. |
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| Root_Werks |
Jan 18 2008, 08:52 AM
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#49
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Village Idiot Group: Members Posts: 8,337 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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This is a really good thread and example of what Jake is capable of doing to a Type4 engine. My next project is just starting but is sure looking like it might end up with one of Jakes engines. (IMG:style_emoticons/default/driving.gif)
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| rhodyguy |
Jan 18 2008, 08:55 AM
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#50
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,090 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
dave will pace like a tiger in a cage waiting for the engine to arrive at the fedex center in fife. dave, let me know if you want me to pull 'big red' out of it's winter sleep to haul it home.
k |
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| Root_Werks |
Jan 18 2008, 08:59 AM
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#51
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Village Idiot Group: Members Posts: 8,337 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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QUOTE(rhodyguy @ Jan 18 2008, 06:55 AM) dave will pace like a tiger in a cage waiting for the engine to arrive at the fedex center in fife. dave, let me know if you want me to pull 'big red' out of it's winter sleep to haul it home. k On that same note K, I am sure Dave knows if he needs any help he'll have it. Not that you would want a bunch of people watching over you as the engine goes in. But if you don't mind, let us know when and I'll try like hell to make it over. (IMG:style_emoticons/default/beerchug.gif) |
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| DNHunt |
Jan 18 2008, 08:55 PM
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#52
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
I got it all packed up despite a few distractions. The afternoons' entertainment was a watch Jake's Pinz destroy a desk. This trip Jake took me off roadin the Pinz in the snow, cutting donuts in the snow with a golf cart and now this. Fun got in the way of work.
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| DNHunt |
Jan 18 2008, 08:57 PM
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#53
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
It was an absolute riot. The desk was mighty tough.
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| Jake Raby |
Jan 18 2008, 09:18 PM
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#54
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
That damn desk was tough as hell!!!
Blake looks like he is square dancin' or something! Glad you enjoyed the trip.. It was nice havin ya. |
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| ConeDodger |
Jan 19 2008, 11:40 AM
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#55
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Apex killer! Group: Members Posts: 23,612 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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How much ya wanta bet Dave can get 20 guys to help put that sucker in when it comes back from Georgia???
It's already broken in so test rides start right off the jack stands! Who wants to sign up??? |
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| byndbad914 |
Jan 19 2008, 04:24 PM
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#56
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shoehorn and some butter - it fits Group: Members Posts: 1,547 Joined: 23-January 06 From: Broomfield, CO Member No.: 5,463 Region Association: None |
Jake - is the cam one of your roller grinds or tappet grind? You using the Schubeck (or whatever they were called) design lifters with no bearings on the roller?
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| brer |
Jan 19 2008, 05:50 PM
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#57
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Advanced Member Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None |
I hope that wasn't an old steelcase desk.
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| Jake Raby |
Jan 19 2008, 08:07 PM
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#58
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
This is a conventional camshaft!! it is NOT a roller profile!!! In fact it is a STOCK camshaft profile for a domestic sports car! I "robbed" the profile in 2005 especially for FI engine development but I never dreamed it would do anything like this!
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| byndbad914 |
Jan 20 2008, 02:29 AM
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#59
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shoehorn and some butter - it fits Group: Members Posts: 1,547 Joined: 23-January 06 From: Broomfield, CO Member No.: 5,463 Region Association: None |
wow Jake, kudos then dude. That is impressive power per cube then (sorry, don't think in liters and cc's very well hahaha).
2.27L*~60cubes/L=136.2 cubes 200HP/136.2=1.468HP/cube My car is 353 cubes * 1.468 ~ 518HP. I made 525HP on mine with a raspy tappet cam so that is some solid numbers with a small tappet cam. Actually I bleed off a lot of cylinder pressure on my car which hurts me a bit in overall power, but I just wanted all that noise hahaha (IMG:style_emoticons/default/laugh.gif) That is a good combo you have going there for the type 4 crowd (IMG:style_emoticons/default/thumb3d.gif) |
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| DNHunt |
Jan 20 2008, 07:08 AM
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#60
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
QUOTE Dave- I'd pay close attention to your actual routing of those sensor cables as they go back to the ECU when you fully dress the motor and get it back in your car David I already have the engine bay layout planned. With the Hall sensor cables I'll make a hard right angle turn upward and machine a spot for a grommet between the case and the cooling shroud near where the bracket is for the thermostat cable. The coil will be amid ships on the rear firewall and plug leads will run to the cylindrs from the rear. All of the sensors andFI leads will run from the fan end of the engine. Relays will be on the front firewall behind the driver's head and the breather box will be on the front firewall behind the passenger's head. The ECU will be between the seats at the firewall. Dave |
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