Quote:
Thanks Dennis.
How are you doing?
Still kicking. How are you doing?
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| 1972 Dodge Colt https://slantsix.org/forum/viewtopic.php?t=63924 |
Page 34 of 72 |
| Author: | hyper_pak [ Sat Mar 04, 2023 6:44 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Rick First time I started it with the new low pressure Holley regulator (1-4 PSI) the gauge showed 1 PSI. Second day I started it the gage showed 4 and went up slightly on it's own, no attempt to adjust it. Yesterday I put a wrench to the adjustment and it would only go up, not down. I moved it from the 4-5 it started at to 6 and just quit screwing with it. It felt like the regulator was in the lowest pressure setting and when I turned the allen screw it just went up. I could get back to the lowest pressure the gauge showed initially, but never any lower. Now we had a huge storm between the first start and second starts, So did the Barometer effect the gauge? There is a little rubber plug they say to clip the tang after install. I did that on the spare one I had and the oil filled started leaking out, so that sucked! I have found another gauge, might buy that and see. Either that or an electric style. |
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| Author: | Charrlie_S [ Sat Mar 04, 2023 7:09 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Just a FYI. I don't like the Holly style "deadhead" pressure regulators. At low pressures they don't seem to have good control. At low fuel flow they have a tendency to have pressure creep. I loke the return flow regulators. |
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| Author: | hyper_pak [ Sat Mar 04, 2023 7:59 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Well this is the THIRD regulator I have purchased and installed. 2 Holley units and 1 Redline unit. And 2 different Holley pumps so I am well down the road with fuel parts and pieces. Looks like this Aeromotive gauge might be the solution. This has a compensation valve on it that seems to be well thought out. https://www.pegasusautoracing.com/produ ... ecID=26998 The pressure seems to be stable, just a different value on different days. |
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| Author: | slantzilla [ Sat Mar 04, 2023 9:32 am ] |
| Post subject: | Re: 1972 Dodge Colt |
My experience has been the small oil filled gauges are junk. I had a good Autometer oil filled fuel pressure gauge on my red car when I was spraying it. I found out it was very inaccurate if the sun was shining on it. |
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| Author: | hyper_pak [ Sat Mar 04, 2023 9:48 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Thanks Dennis. How are you doing? |
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| Author: | Rick Covalt [ Sat Mar 04, 2023 10:20 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Since the Webers like low pressure of @ 2.75-3#, I purchased the Carter Low pressure high volume pump. And I run the Holley dead head fuel pressure regulator that is specifically for 1-4# pressure. I have never seen my pressure moving around hardly at all. I use an Earls pressure gauge ( non liquid filled) |
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| Author: | hyper_pak [ Sat Mar 04, 2023 10:39 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Thanks Rick I have spent mucho money and time even before I added the Webers. I have the low pressure Holley pump now. I was thinking mounted on the engine the liquid filled gauge would be a good idea. More trouble than it has been worth to this point. |
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| Author: | slantzilla [ Sat Mar 04, 2023 12:28 pm ] |
| Post subject: | Re: 1972 Dodge Colt |
Quote: Thanks Dennis.
Still kicking. How are you doing?
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| Author: | hyper_pak [ Fri Apr 07, 2023 7:57 pm ] |
| Post subject: | Re: 1972 Dodge Colt |
Finally got out to test, weather has been a little unpredictable lately. Good news: Front brakes are great, did the first real burnout tonight. Trans leak is fixed, no more drip. Head gasket is fixed, no leaks. Electronic ignition dist. seems to work real well. Fuel pressure was rock solid at 3 PSI. Not much news: Timing change hasn't seemed to make much difference. Moving cam back a few degrees didn't seem to effect performance. Can't really tell if the clutch tamer is doing what it's supposed to do. Bad news: The great Weber experiment is over for the time being. It coughed on clutch dump and fell on it's face. Then picked up and went on about it's business. Colt wasn't any faster today. And not sure if bad or good, but I did get my first Red light! HAd not left early in any either earlier pass. |
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| Author: | slantzilla [ Fri Apr 07, 2023 8:10 pm ] |
| Post subject: | Re: 1972 Dodge Colt |
Congrats on getting it out buddy! 
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| Author: | Greg Ondayko [ Sat Apr 08, 2023 6:16 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Hi Stan, I would *think* that tuning the webers is like tuning a four barrel x 6 to get each throat maximised for its intended usage. You just need to get a lot of passes to sort all of that stuff out, especially with adding the clutch tamer. You have a logbook/computer spreadsheet keeping track of all data on every run? Does your local track run TNT slow or can you get more than 3 runs in a 6 hour period? Greg |
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| Author: | hyper_pak [ Sat Apr 08, 2023 8:14 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Thanks Zilla Greg, no logger. Deb tries to video every run and then I log in my record book. The track was not too busy last night, I could have run more, but I was done. No sense beating on it. Not sure where to go with the Webers right now. Plug readings are pretty close. |
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| Author: | Rick Covalt [ Sat Apr 08, 2023 9:48 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Quote: It coughed on clutch dump and fell on it's face.
What RPM?Then picked up and went on about it's business. My Webers are fine as long as I leave with the rpm above 2000-2200.That is with a 4000 convertor. I feel certain that this low rpm stumble could be easily adjusted out, but I never need to leave at 2000 rpm. I would suspect that you are going to need to leave somewhere above 4000 rpm. The Webers pull like a freight train when tuned properly. I will never go back to a 4 barrel especially for racing.  What does the A/F look like? Everyone tells me that reading plugs is a giant waste of time. I don't know. 
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| Author: | hyper_pak [ Sat Apr 08, 2023 10:03 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Thanks Rick I have no A/F meter, I would need to data log it to make sense of the readings. I left at 3-3500 rpm on the stumble. Flat on it's face and then off she went. It pulls ok, not sure what hard feels like anymore. It seemed to flaten out at the top of 3rd yesterday, didn't catch the RPM on the shift. I think you can appreciate a 4 speed car and an automatic are pretty different animals. I have not given up, that just is not me. I just want to get going faster right now. I hate it when those Junior Dragsters pass me in the lights and then pop the chute! LOL And yes plug reading is a question, but not fuel fouled, black, or funky. |
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| Author: | Rick Covalt [ Sat Apr 08, 2023 11:08 am ] |
| Post subject: | Re: 1972 Dodge Colt |
Quote: I have no A/F meter, I would need to data log it to make sense of the readings.
You really need an A/F gauge. At least to know your wide open throttle A/F is in the proper range. And you will need that even if you go back to a 4 -barrel. I left at 3-3500 rpm on the stumble. I still think after you know the A/F is close, you will need to launch above 4000 rpm. Once the car is launched and begins to move, the Webers have no idea whether you have a clutch or a torque convertor. Just as a reference; Ryan launched his 3200# Dart Swinger on slicks many times and it took over 4000 rpm to get that much weight moving, even with 4.30 gears and a 3.09 first gear. Your lightweight car is built for this. Cut er loose and hold on! Good luck Stan! |
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