Search found 83 matches

by 63qcar
Wed Dec 27, 2023 7:00 pm
Forum: Engine Tech
Topic: Carter M6905 Fuel Pump Arm Geometry
Replies: 4
Views: 2176

Re: Carter M6905 Fuel Pump Arm Geometry

Thanks guys .... I was halfway planning to add a regulator with a return line this Winter . Looks like it just got added to my to do list . Rgalajda.... thanks for the photo , I couldn`t remember how much of the arm was riding on the eccentric . The only potential "problem" would be over-s...
by 63qcar
Tue Dec 26, 2023 10:00 pm
Forum: Engine Tech
Topic: Carter M6905 Fuel Pump Arm Geometry
Replies: 4
Views: 2176

Carter M6905 Fuel Pump Arm Geometry

Need some input on this from , hopefully , someone who has more experience with this pump than I do . Winter is when I get bored and overthink things . Engine is a aluminum block 482 FE in a Cobra replica and heat/vapor lock has been a Summer issue for me recently . So , added a heat shield under th...
by 63qcar
Mon Mar 13, 2023 11:01 pm
Forum: Engine Tech
Topic: Holley 950 Ultra HP Carb
Replies: 108
Views: 6983

Re: Holley 950 Ultra HP Carb

Spike ..... to expand somewhat on what others have said about sizing the PV to cruise vacuum ..... good advice . My application may be a little different from yours , but I used to put my Cobra replica w/482 FE engine with a 4150 mechanical secondary carb on road courses . Idle vacuum is about 8 to ...
by 63qcar
Tue Oct 18, 2022 3:00 pm
Forum: Engine Tech
Topic: 1:1 holley throttle linkage set up
Replies: 33
Views: 6222

Re: 1:1 holley throttle linkage set up

FWIW , I have a Cobra replica with a 482 FE , 680 hp ,5 speed and it weighs under 2700 lbs with me in it . It`s a street car that sees occasional road course use , but mostly just street . Just finished playing with the 1:1 linkage on one of Mark W`s 4150`s and finally set it back to the progressive...
by 63qcar
Fri Apr 15, 2022 2:53 pm
Forum: Engine Tech
Topic: Needle Bearing Crankshafts
Replies: 43
Views: 16826

Re: Needle Bearing Crankshafts

I used to race an E/P Porsche " back in the day " and the top runners all used the Hirth roller cranks . In talking to Bruce Jennings back in the early to mid `60`s , he told me that the roller had a few drawbacks . One was you couldn`t idle under 1500 rpm as the needle bearings would smea...
by 63qcar
Tue Dec 21, 2021 2:01 pm
Forum: Engine Tech
Topic: K&N Xtreme air filter top on 69 Camaro factory cowl inductio
Replies: 23
Views: 3974

Re: K&N Xtreme air filter top on 69 Camaro factory cowl inductio

2Quickrides .... you just solved a problem for me . Currently running a FE 482 in a Cobra kit car and am currently using an L88 drop base with a domed lid and 3" x 14" filter element . It seems to me that the bottom half of the filter is blocked off by the drop base . I`ve tried a flat bas...
by 63qcar
Sun Jul 18, 2021 10:55 am
Forum: Engine Tech
Topic: Another Aluminum Engine Operating Temp Question
Replies: 15
Views: 1164

Re: Another Aluminum Engine Operating Temp Question

Update ... pulley diameters are ok , actually a slight overdrive . Next step is to remove plugs in water pump and intake and re connect the bypass hose (FE Engine ) . Got to thinking last night about not having the bypass connected and it seems to me that when the thermostat is closed ( and no bypas...
by 63qcar
Fri Jul 16, 2021 10:34 am
Forum: Engine Tech
Topic: Another Aluminum Engine Operating Temp Question
Replies: 15
Views: 1164

Re: Another Aluminum Engine Operating Temp Question

Geoff2 , I you just made a light bulb go off in my head . I need to check all pulley diameters as I think the engine had the March underdrive pulleys on it from way back . Wish I could find the paperwork on that , but no luck yet . Going to measure them first chance I get .... if they are underdrive...
by 63qcar
Thu Jul 15, 2021 6:52 pm
Forum: Engine Tech
Topic: Another Aluminum Engine Operating Temp Question
Replies: 15
Views: 1164

Re: Another Aluminum Engine Operating Temp Question

In no particular order .... Cool Carb insulator is under the carb . Current distributor is the MSD mechanical advance , but I have a modified Duraspark VA distributor on the bench . No crossover on the intake and just the Cobra hood scoop and what comes in through the radiator and under car for air ...
by 63qcar
Thu Jul 15, 2021 4:45 pm
Forum: Engine Tech
Topic: Another Aluminum Engine Operating Temp Question
Replies: 15
Views: 1164

Another Aluminum Engine Operating Temp Question

Did a brief search and didn`t really see anything that helped me . So , I have a 482 FE aluminum block , heads , intake etc in a Cobra replica and am currently running a 180 degree thermostat . Summer here now and ambients are in the mid to upper 90`s and I`m seeing H2O temps in the 190 to 210 degre...
by 63qcar
Fri Oct 16, 2020 9:58 pm
Forum: Engine Tech
Topic: power valve circuit myths
Replies: 39
Views: 4503

Re: power valve circuit myths

On my 4150 Dbl Pumper ... 482 with Ebrock dual plane , 10.5 CR , dyno at 650 hp , I had a similar flat spot around 2700 to 3100 rpm coming out of turns on the track . I was just balancing the throttle until I got the car straightened and then rolled into WOT . I played with TS restrictors , IAB`s , ...
by 63qcar
Tue Oct 15, 2019 10:39 am
Forum: Engine Tech
Topic: 4150 Transition Puzzle
Replies: 18
Views: 2277

Re: 4150 Transition Puzzle

Madbill .... correct on the distributor . Current one is an MSD mechanical advance unit since the car spent time on road courses . That`s behind me for the foreseeable future . I know people dump on the MSD unit , but I`ve gotten almost 10 years and 11,000 miles on it with one cap replacement . You`...
by 63qcar
Mon Oct 14, 2019 10:48 am
Forum: Engine Tech
Topic: 4150 Transition Puzzle
Replies: 18
Views: 2277

Re: 4150 Transition Puzzle

Couldn`t dodge the rain yesterday , so will try today and/or tomorrow . BigBlock , your symptoms sound a lot like mine ..... and my aluminum flywheel probably doesn`t help matters . As far as timing .... 26 degrees at idle ( 1200 rpm ) and 36 to 37 at 3500 rpm . I plan to try "locking " th...
by 63qcar
Sun Oct 13, 2019 11:58 am
Forum: Engine Tech
Topic: 4150 Transition Puzzle
Replies: 18
Views: 2277

Re: 4150 Transition Puzzle

Correction ..... holes in butterflies are 3/32" NOT 3/16" , brain fade on my part >
by 63qcar
Sun Oct 13, 2019 11:54 am
Forum: Engine Tech
Topic: 4150 Transition Puzzle
Replies: 18
Views: 2277

Re: 4150 Transition Puzzle

My427stang ... I was able to get an insulator under the carb by losing 1/2" from the Wix filter hgt. ( was 14" dia. , 3" tall ) and carb stays significantly cooler now. Not running a turkey pan as the only filters that will fit in the pan are 8" dia and won`t flow the air I need ...