Anyone use the FBO advance limiter plates?
#1808821
04/21/15 07:11 PM
04/21/15 07:11 PM
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Joined: Aug 2003
Posts: 8,828 Houston, Tx
hemi68charger
OP
master
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OP
master
Joined: Aug 2003
Posts: 8,828
Houston, Tx
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Hey gang, Anyone use the FBO timing advance limiter plates? I am experimenting with the timing on my new 426 HEMI and seeing timing, especially initial, has a drastic effect on performance. It appears my hemi likes more initial timing in the 16-18 ranges, maybe more but don't want to push the total advance window past the 34-36 range. With this plate, it seems I can up the initial but keep the total in check while utilizing my vacuum advance functionality.. I recently had my original Presolite dual-point restored with Pertronix guts to be used as a trigger for my MSD6 system. The plate will eventually go in there if it helps.
Last edited by hemi68charger; 04/21/15 07:16 PM.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Anyone use the FBO advance limiter plates?
[Re: hemi68charger]
#1808825
04/21/15 07:21 PM
04/21/15 07:21 PM
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Joined: Sep 2006
Posts: 1,132 Home of the Bluegrass
MoparJunkie
super stock
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super stock
Joined: Sep 2006
Posts: 1,132
Home of the Bluegrass
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Hey gang, Anyone use the FBO timing advance limiter plates? I am experimenting with the timing on my new 426 HEMI and seeing timing, especially initial, has a drastic effect on performance. It appears my hemi likes more initial timing in the 16-18 ranges, maybe more but don't want to push the total advance window past the 34-36 range. With this plate, it seems I can up the initial but keep the total in check while utilizing my vacuum advance functionality.. Troy, I have used Don's distributors for a while. I like his way of using manifold vacuum to introduce more timing while at light load and then using mechanical when there is little to no vacuum at heavy load. I actually put one in my 472. Haven't been able to drive it due to this brake issue, but the same setup worked great on my 505 stroked six pack motor. Call Don and talk to him about your setup and he'll work with you on what you want. Good guy to deal with, or has been for me anyway!
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54 2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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Re: Anyone use the FBO advance limiter plates?
[Re: MoparJunkie]
#1808911
04/21/15 08:51 PM
04/21/15 08:51 PM
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Joined: Aug 2003
Posts: 8,828 Houston, Tx
hemi68charger
OP
master
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OP
master
Joined: Aug 2003
Posts: 8,828
Houston, Tx
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Call Don and talk to him about your setup and he'll work with you on what you want. Good guy to deal with, or has been for me anyway! Just got off the phone with Don.. Nice conversation and I ordered two plates and the documentation and springs... So, we'll see... Looking forward in tinkering with the car..
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Anyone use the FBO advance limiter plates?
[Re: hemi68charger]
#1818355
05/04/15 11:47 AM
05/04/15 11:47 AM
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Joined: Aug 2003
Posts: 8,828 Houston, Tx
hemi68charger
OP
master
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OP
master
Joined: Aug 2003
Posts: 8,828
Houston, Tx
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Over the past couple of weekends I have taken the Daytona out with the new modifications I did to the electronic distributor I use for my MSD6A trigger. I'm happy to say there are noticeable improvements. The HEMI fires up rather nicely, idles better when cold and the acceleration is MUCH improved. I have some tweeking to do I believe, but I think I have the timing & fuel-air ratio dialed in rather nicely. The setting now is 20 initial using the 14 slots to give me a 34 total mechanical advance.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Anyone use the FBO advance limiter plates?
[Re: BDW]
#2471922
03/25/18 06:16 PM
03/25/18 06:16 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I used it, worked as advertised. X2 Absolutely the best bang for the buck for limiting mech total. $22 to your door. EDIT has slots for 10-12-14-16 or 18 deg of mechanical allowed.
Last edited by RapidRobert; 03/25/18 06:39 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Anyone use the FBO advance limiter plates?
[Re: RapidRobert]
#2471941
03/25/18 07:02 PM
03/25/18 07:02 PM
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Joined: Nov 2006
Posts: 356 NE
moparpoolman
enthusiast
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enthusiast
Joined: Nov 2006
Posts: 356
NE
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I used it, worked as advertised. X2 Absolutely the best bang for the buck for limiting mech total. $22 to your door. EDIT has slots for 10-12-14-16 or 18 deg of mechanical allowed. Where do you get one for $22?
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Re: Anyone use the FBO advance limiter plates?
[Re: RapidRobert]
#2472195
03/26/18 10:25 AM
03/26/18 10:25 AM
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Joined: Jan 2003
Posts: 2,863 middle Tennessee
mopower440
master
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master
Joined: Jan 2003
Posts: 2,863
middle Tennessee
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I used it, worked as advertised. X2 Absolutely the best bang for the buck for limiting mech total. $22 to your door. EDIT has slots for 10-12-14-16 or 18 deg of mechanical allowed. so how do you dial it in to get exactly what you need both initial and total? I need like 18 initial and 34 total on mine..How do you use this plate to get both? Sounds like I need this to replace my old JB weld limiting the ttaol ive had forever..lol
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Re: Anyone use the FBO advance limiter plates?
[Re: mopower440]
#2472200
03/26/18 10:33 AM
03/26/18 10:33 AM
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Joined: Nov 2006
Posts: 356 NE
moparpoolman
enthusiast
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enthusiast
Joined: Nov 2006
Posts: 356
NE
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I used it, worked as advertised. X2 Absolutely the best bang for the buck for limiting mech total. $22 to your door. EDIT has slots for 10-12-14-16 or 18 deg of mechanical allowed. so how do you dial it in to get exactly what you need both initial and total? I need like 18 initial and 34 total on mine..How do you use this plate to get both? Sounds like I need this to replace my old JB weld limiting the ttaol ive had forever..lol http://www.4secondsflat.com/Mopar%20Mechanical%20timing%20limiter%20plate.htmThe laser etched numbers on the disc designate the amount of mechanical advance so for instance... If you want 18 degrees of initial timing you just set the plate on the 16* slot 18 initial+16 Mechanical= 34* total If you want 24 degrees of initial timing you set the plate on the 10* slot for 24 +10= 34* total If you want to lock down the distributor with NO Mechanical timing at all then just drop the plate over the 0 round hole
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Re: Anyone use the FBO advance limiter plates?
[Re: moparpoolman]
#2472235
03/26/18 12:00 PM
03/26/18 12:00 PM
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Joined: Jan 2003
Posts: 2,863 middle Tennessee
mopower440
master
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master
Joined: Jan 2003
Posts: 2,863
middle Tennessee
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I used it, worked as advertised. X2 Absolutely the best bang for the buck for limiting mech total. $22 to your door. EDIT has slots for 10-12-14-16 or 18 deg of mechanical allowed. so how do you dial it in to get exactly what you need both initial and total? I need like 18 initial and 34 total on mine..How do you use this plate to get both? Sounds like I need this to replace my old JB weld limiting the ttaol ive had forever..lol http://www.4secondsflat.com/Mopar%20Mechanical%20timing%20limiter%20plate.htmThe laser etched numbers on the disc designate the amount of mechanical advance so for instance... If you want 18 degrees of initial timing you just set the plate on the 16* slot 18 initial+16 Mechanical= 34* total If you want 24 degrees of initial timing you set the plate on the 10* slot for 24 +10= 34* total If you want to lock down the distributor with NO Mechanical timing at all then just drop the plate over the 0 round hole Nice! I definitely need this!
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Re: Anyone use the FBO advance limiter plates?
[Re: hemi68charger]
#2472239
03/26/18 12:08 PM
03/26/18 12:08 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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I agree well worth the 22$ and I got the tuning guide as well.
I have 3 in use now. followed the guide book and wow what a difference it made on my junk.
1)I have in my bone stock 318 a points dist/stock springs/vac pod hooked up full vac and run the initial at 14* with plate set on 18* for 32* total.
runs great on 87 pump gas with no ping and 18mpgs on hwy.
2) 273 points dist/MrGasket light springs/initial on 14* with plate on 18* NO vac pod used.
runs about the same as set up #1
3) 440 230/245 @ .050 whiplash cam-initial set at 34* with plate locked on 0* no vac pod used.
the whiplash cam loves it and made it much more street friendly as a daily driver.
wish I had learned to do this 35 yrs ago.
Last edited by scratchnfotraction; 03/26/18 12:09 PM.
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Re: Anyone use the FBO advance limiter plates?
[Re: mopower440]
#2472254
03/26/18 12:40 PM
03/26/18 12:40 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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so how do you dial it in to get exactly what you need both initial and total? set the initial with "the vacuum gauge method" then set the total (initial+plate amt) to the std for your eng which will get you close (ie 35 for a SB) then toss the heavy spring with the elongated loop & sub in a MP/mr gasket/transdapt light spring in its place for a start & mix/match from there so you are aways under the pinging point at WOT up thru the gears on your hottest/driest (most likely to ping) day & there is silent ping & peoples' hearing varies so give it a margin. Any spring combo advances in a linear rate no matter which spring you change (once the elongated loop one is tossed). then plug in the can & adj its tip in rate with a 3/32 allen wrench (CCW delays it/takes more in hg to activate it/total amt stays the same) so that you are same as above AWAYS under the ping point in everyday driving under varying load/RPM conditions. there are different cans that offer a different TOTAL available & you can work with the notch on the arm on the can to limit the total in addition to working with the prior tip in rate & this is for PORTED & Don a FBO is a MANIFOLD guru which has a different procedure & many people swear by tho I ain't never tried it (yet) but I was loaned a copy of the "tuning to win" booklet & I was not impressed with it. YMMV
live every 24 hour block of time like it's your last day on earth
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Re: Anyone use the FBO advance limiter plates?
[Re: hemi68charger]
#2472464
03/26/18 07:52 PM
03/26/18 07:52 PM
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Joined: Jan 2003
Posts: 1,255 Columbus, GA
Michael Ecks
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,255
Columbus, GA
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Just installed one a couple months back. More initial without the total going into heavy ping range woke my car up considerably.
The design is pretty genius, and hats off to the guy for keeping a fair price instead of gouging customers for it.
Now if only someone would come up with an equally genius/affordable tool to get the top shaft retaining clip out easier. That was seriously the longest part of the process for me. LOL
"The happiness of your life depends upon the quality of your thoughts" ~ Roman Emperor Marcus Aurelius
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Re: Anyone use the FBO advance limiter plates?
[Re: hemi68charger]
#2472468
03/26/18 08:00 PM
03/26/18 08:00 PM
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Joined: Nov 2016
Posts: 200 Colorado
Bob J
enthusiast
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enthusiast
Joined: Nov 2016
Posts: 200
Colorado
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This looks a lot better than welding up the slots then filing them down to get it correct. This takes a long time.
07 Porsche C2 997.1 6spd DD and SCCA Solo II SS 68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam 65 Chrysler 300 Convert. project 57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son 2003 Dodge Dakota R/T "DEAD"
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Re: Anyone use the FBO advance limiter plates?
[Re: Bob J]
#2472533
03/26/18 10:43 PM
03/26/18 10:43 PM
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Joined: Feb 2010
Posts: 1,645 Phila. Pa.
Mattax
top fuel
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top fuel
Joined: Feb 2010
Posts: 1,645
Phila. Pa.
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This looks a lot better than welding up the slots then filing them down to get it correct. This takes a long time. It's clever, but its not better if the engine will be used at high rpm. For high rpm, its better to take advantage of the advance's geometry by shortening the inside (rather than stopping the weight moving at the top).
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Re: Anyone use the FBO advance limiter plates?
[Re: Mattax]
#2472598
03/27/18 01:58 AM
03/27/18 01:58 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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^^^ I am willing to do this, how does it work better?
live every 24 hour block of time like it's your last day on earth
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