 Tuning my Raby 2270 with carbs, Anyone know what to set the timing to? |
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| Flat VW |
 Nov 23 2005, 06:45 PM
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#1
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Illegal Soapbox Derby Racecar  Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105  |
Hi everyone, (IMG:http://www.914world.com/bbs2/html/emoticons/wavey.gif)
I am replacing my points and condenser and will need to set my timing, anyone know the proper setting? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) John |
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| rick 918-S |
Nov 23 2005, 07:39 PM
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#2
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Hey nice rack! -Celette Group: Members Posts: 20,460 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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Better ask Jake
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| Mark Henry |
Nov 23 2005, 09:01 PM
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#3
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I'd ask Jake, but 7.5 BTDC is a safe bet.
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| Flat VW |
Nov 23 2005, 09:05 PM
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#4
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Illegal Soapbox Derby Racecar Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105 |
Yes, Rick, I was wondering if another owner of a similar engine of Jake's might have had the answer. I changed the points and it is running tip-top now. It is funny how drivabilty can diminish slowly and then reach "critical mass" suddenly. No timing adjustment for now, but what a difference in starting. (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif) Test drive to commence in mere moments... (IMG:http://www.914world.com/bbs2/html/emoticons/MDB2.gif) John (IMG:http://www.914world.com/bbs2/html/emoticons/boldblue.gif) |
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| Flat VW |
Nov 23 2005, 09:06 PM
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#5
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Illegal Soapbox Derby Racecar Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105 |
Noted Mark, thanks for your reply. John (IMG:http://www.914world.com/bbs2/html/emoticons/wavey.gif) |
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| hmeeder |
Nov 23 2005, 09:27 PM
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#6
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Dante's Sportscar Group: Members Posts: 352 Joined: 21-November 04 From: San Diego, CA Member No.: 3,154 |
Most of our carb'ed engines are set at 34-35 degrees btdc
Check this: Pelican Parts Carb Timing Article |
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| Mark Henry |
Nov 23 2005, 09:44 PM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
7.5 static BTDC + 24 degrees advance = 31.5 degrees total advance. That's about what you'd get with a mallory. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) 34- 35 is around what you'll get with a 009 or 050 |
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| Flat VW |
Nov 24 2005, 01:00 AM
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#8
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Illegal Soapbox Derby Racecar Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105 |
Holy Shnikes, what a difference. That was just the hottest ride I've had in this car since owning it. (IMG:http://www.914world.com/bbs2/html/emoticons/aktion035.gif) This thing is Rippin, now! How often do others change points? Do you change your condenser each time? Is there a test for the condenser other than just examining the "spark traits"? If you were in a bind with no feeler guage what common thing would you use to gap your points? John (IMG:http://www.914world.com/bbs2/html/emoticons/piratenanner.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/mueba.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/mueba.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/MDB2.gif) |
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| TravisNeff |
Nov 24 2005, 01:31 AM
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#9
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region
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I think the adjustment/change interval is around 6k miles? I always seem to futz with them a helluva lot sooner than that. I went to an electronic replacement and life is much better with 1 less thing you have to tinker with.
Points should be replaced when worn, condenser you can keep in there for a long, long time. Be sure to use a bosch unit - the junky ones at your local flaps are known to die after a little bit of time. |
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| eds72 |
Nov 24 2005, 01:38 AM
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#10
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Newbie Group: Members Posts: 49 Joined: 31-December 04 From: Bakersfield, Ca. Member No.: 3,382 |
Hi. On 009's i've been using either Compufires or Petronix units lately. Once you set your timing, you're pretty much set for a long time, although it's always a good idea to check it periodically.
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| v82go |
Nov 24 2005, 05:22 AM
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#11
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Resident Contrarian Group: Members Posts: 249 Joined: 9-December 04 From: Lakeland, Fl. Member No.: 3,250 |
John The answer to your last question is : in a jam I would use a matchbook, it is close enough (IN THICKNESS) to get you home to your feeler gauges. |
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| Mark Henry |
Nov 24 2005, 07:17 AM
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#12
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
What dizzy are you running?
Too much advance is not good for the engine. How did you set it? Static or with a timing light? |
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| Flat VW |
Nov 24 2005, 09:15 AM
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#13
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Illegal Soapbox Derby Racecar Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105 |
I really do not know that. I would like to though, is there a way to identify the dizzy model while it is still installed it the car? THX Mark, no timing change just points and condenser change for now, till I can confer with Jake on Friday, from piloting last night though my butt says it is on the nut now or quite close to it. John (IMG:http://www.914world.com/bbs2/html/emoticons/wavey.gif) P.S. I am going to put a timing light on it today in order to see where it is set now, strictly for reference and drill. Happy Thanksgiblets to you and ALL (IMG:http://www.914world.com/bbs2/html/emoticons/burnout.gif) |
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| Mark Henry |
Nov 24 2005, 10:41 AM
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#14
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Just changing the points can change your timing.
A mallory will have a big red cap. It's hard to see tha numbers on a Bosch dizzy without taking it out. If you undo the 13mm (wrench size) nut you can pull it up and out, get the number and stick it back in. Rotate the rotor till it seats right down and put the nut back on. That shouldn't change your timing. It will have a set of 9 numbers in 3's, it sometimes has a letter on the end. Don't worry about any other numbers. XXX XXX 009 XXX XXX 050 XXX XXX 205A (I can't think of the first numbers off the top of my head so I've used the "X" for the ones I don't know.) |
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| Jake Raby |
Nov 24 2005, 10:47 AM
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#15
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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 |
NO NO NO!!!!!!!!!!
Every engine I build is different- Almost all them have different optimum settings that I determined during their Dyno sessions!!! This is why I create spec books for them and include them with the engine, these specs are all you need to do anything maintenance wise to the engine. If you received that manual with the car, its all there.. If not I'll have to email them to you tomorrow as I am away from the shop and do not have them handy today. DO NOT LISTEN TO ANY OF THE ABOVE RECOMMENDATIONS!! There are no default settings for my engines and this is VERY important to set correctly. If not your MPG head temps and power will all suffer. If it wasn't Thanksgiving I could help you in 5 minutes.. |
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| Brando |
Nov 24 2005, 01:31 PM
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#16
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
(IMG:http://www.914world.com/bbs2/html/emoticons/givemebeer.gif)
er... i mean... (IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) Listen to the man who made your engine. |
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| Aaron Cox |
Nov 24 2005, 01:41 PM
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#17
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
and why arent you running a pointless setup or a mallory ?
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| Flat VW |
Nov 24 2005, 02:51 PM
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#18
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Illegal Soapbox Derby Racecar Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105 |
The same reason I'm not running (or had recently purchased) a six.
There is something most gratifying about running the "old school stuff" and "waxing the tails" of newest, latest, computer-driven cars in my "just a 4" (cool vanity plate (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) ). Running, an engine essentially designed in what, the late thirties? (IMG:http://www.914world.com/bbs2/html/emoticons/boldblue.gif) I encountered a Mazada RX-8 entering the freeway last night and gave it a taste. We were both pedaling pretty hard, I having just shifted to fifth when a Mercedes newest latest two seater went by us like we were going backward, so its all relative. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) I know my place in the "car universe" and I like it. (IMG:http://www.914world.com/bbs2/html/emoticons/w00t.gif) I also had a run against a brand new BMW 325 (entering the freeway also just last night), they are pokey. (IMG:http://www.914world.com/bbs2/html/emoticons/icon_bump.gif) At this time if I made any changes it would be for "emissions reasons", and I would make the jump to programmable electronic fuel injection. It seems to be common knowledge around here that there is maybe as much as 10% more power to be had with the change. John |
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| Flat VW |
Nov 24 2005, 02:59 PM
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#19
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Illegal Soapbox Derby Racecar Group: Members Posts: 1,692 Joined: 13-November 04 From: Phoenix, AZ Member No.: 3,105 |
SIR, YES, SIR (standing most rigidly, cover slightly over my eyes.....) Sir, I examined the points and found them quite pitted Sir, and took the initiative to change them, SIR. John (IMG:http://www.914world.com/bbs2/html/emoticons/w00t.gif) P.S. Poor guy, I sent a message about this as he was walking out for the holiday yesterday......... (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) P.P.S. In regard to the points, have I sinned? (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif) |
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| bd1308 |
Nov 24 2005, 03:02 PM
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#20
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
no freaking way...i feel EXACTLY the same way you do.
I get chills sometimes when i drive my car, knowing that i'm driving an old-world car. I love it! Jake's doing wonders for the aircooled world. b |
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