Search found 241 matches

by Woolfi
Mon Nov 11, 2019 10:11 am
Forum: Series 3
Topic: Acrid smoke and low vacuum
Replies: 29
Views: 3137
Germany

Re: Acrid smoke and low vacuum

"I now work on the basis that these old tech engines need the following AFRs (as a guideline): 0-30% engine load: AFR 13 (this is overrun / engine braking conditions) 30 - 55% : AFR 16 (light cruise) 55 - 75%: AFR 14 (maintaining speed up a slight hill) 75 - 100: AFR 13 (basically full throttle)" I...
by Woolfi
Fri Nov 08, 2019 4:52 pm
Forum: General
Topic: new hood
Replies: 5
Views: 432
Germany

Re: new hood

"So , is vinyl or fabric ( mohair ) better ?" Both have often low quality. If soft-top material is called "mohair", you don't know which producer it has produced. I have seen an E-type top from UK made of "mohair", which became longer/softer and longer/softer evry week. It was realy sh . . "What was...
by Woolfi
Tue Sep 24, 2019 2:08 pm
Forum: Technical
Topic: 10,000 mile "temporary" engine update
Replies: 5
Views: 826
Germany

Re: 10,000 mile "temporary" engine update

"It is being dressed up in a slightly more traditional fashion with triple SUs and a 123 tune distributor. It will be interesting to see how it performs, all other things remaining equal." This would be really interessting to know. Maybe (? ? ?) the rampipes I can see on the picture are a little bit...
by Woolfi
Thu Sep 05, 2019 7:42 pm
Forum: Series 3
Topic: 6.0 V12 and 4 speed auto box transplant
Replies: 3
Views: 1291
Germany

Re: 6.0 V12 and 4 speed auto box transplant

Hello Curtis, keep in mind, that the original auto box from an 1993 V12 limousine is a VERY heavy (117 kg) and big box. I think you have to change the shape of the gearbox tunnel of the car. I have mounted such a motor with 4 stromberg carbs and a Getrag 5-speed into my EV12 OTC. Gas consumption rou...
by Woolfi
Tue Aug 20, 2019 11:12 am
Forum: Series 3
Topic: Tuning Problems V12
Replies: 46
Views: 6124
Germany

Re: Tuning Problems V12

Why don't you mount a vented cooling system for your amp ? You need a rubber hose form the air filter onto the amp and a second hose leading from the amp to the front of the car. If the motor is running, cold (!) air would be sucked through the amp. I can't estimate, how big the cooling effect woiul...
by Woolfi
Thu Jun 20, 2019 10:32 pm
Forum: Series 3
Topic: Tuning Problems V12
Replies: 46
Views: 6124
Germany

Re: Tuning Problems V12

I had such a problem for three years. If the hydrocarbons are 2000 ppm and the co is 9,5% maybe some ignitions ar failing and the motor is blowing out not ignited mixture from some strokes. Such a problem can be ignition related or carb-related. Mine was ignition related. The timimg was much too ear...
by Woolfi
Mon Feb 25, 2019 11:08 pm
Forum: Series 3
Topic: Capacity and compression ratio increase
Replies: 20
Views: 1521
Germany

Re: Capacity and compression ratio increase

"Ultimately I will be looking to to go to full EFI with coil packs etc but for now it may be a bottom end rebuild with the original carbs and ignition." The 6,0L HE-Motor has more displacement with a longer hub. A longer hub produces a torque curve with the maximum at lower revs. Maybe the solution ...
by Woolfi
Tue Jan 29, 2019 11:25 am
Forum: Series 3
Topic: V12 starting issues
Replies: 4
Views: 487
Germany

Re: V12 starting issues

Does the motor have a good idle when it is hot ? If the idle is good, there es no leak for air at the hoses.
If the motor pulls air through a hole, the idle is bad.
Regards Wolfgang Gatza
by Woolfi
Wed Jan 16, 2019 11:26 am
Forum: Series 3
Topic: Dayton wire wheels S3 roadster
Replies: 38
Views: 2307
Germany

Re: Dayton wire wheels S3 roadster

Can you write her in the forum, if the tire-flat foam has closed all leaks.
The leaks must be closed for a long time, when using the car.
by Woolfi
Fri Dec 21, 2018 1:35 pm
Forum: Technical
Topic: Electronic Ignition - carb ported vacuum versus manifold vacuum?
Replies: 8
Views: 1240
Germany

Re: Electronic Ignition - carb ported vacuum versus manifold vacuum?

Roberts remarks about this are exatly 100% correct. If you use manifold vacuum, you have max vacuum at idle and therefore maximum advance at idle. If you have a 16 degreee capsule, you would have 10 plus 16 = 26 degree at idle. You would have a stumblingidle and therefore a very bad smell out of the...
by Woolfi
Wed Dec 19, 2018 5:13 pm
Forum: Technical
Topic: Gunson Colortune
Replies: 14
Views: 1514
Germany

Re: Gunson Colortune

"Again, I agree with Malcolm : XKs run best at a stoichiometric ratio of about 12.5 : 1 rather than the ideal ( weaker) 14 or so." ? ? ? 12,5 AFR at which level of power ? At iddle, lower part throttle or higher part throttle ? If you adjust the mixture for all 6 cylinders at IDLE to a AFR of 14,7 (...
by Woolfi
Wed Dec 12, 2018 3:45 pm
Forum: Technical
Topic: SU minutiae
Replies: 18
Views: 1992
Germany

Re: SU minutiae

"These are triple SU's on a 4.2l modified engine - cams, porting, big valves." 17 years ago I have made one big hole through the two silencers of my EV12. The back pressure was reduced. As a result I had a flat spot , when pressing the pedal suddenly to the floor from roundabout 1000 - 3000 rpm. Som...
by Woolfi
Fri Nov 16, 2018 11:18 am
Forum: Series 3
Topic: Series 3 carb removal
Replies: 11
Views: 1122
Germany

Re: Series 3 carb removal

Easy solution: take a spare spanner (in german language is called "fork key" or "open mouth" key) and saw it short and grind the mouth slim. Drill a small hole at the end and make a thin 1 m long yarn at it. 5 minutes to work, if you have a saw and a grinder. With this special stromberg-tool I was a...
by Woolfi
Tue Nov 13, 2018 9:43 am
Forum: Series 3
Topic: Series 3 spark plugs colours
Replies: 19
Views: 2342
Germany

Re: Series 3 spark plugs colours

"Vacuum advance (vacuum direct from intake manifold)" This is WRONG. The vacuum has to be taken from a port at the carb, "called tappered edge". Few carbs have this port. For my EV12 I had to drill a port to one carb. The port has to end roundabout 1 - 3 mm in FRONT of the butterfly. If you presse t...
by Woolfi
Tue May 22, 2018 11:16 pm
Forum: Series 3
Topic: Jumping and spitting under acceleration
Replies: 32
Views: 3860
Germany

Re: Jumping and spitting under acceleration

"Some will vehemently insist that you MUST drill one carb to get so-called "ported vacuum" but I am just as convinced that is not necessary (unless you HAVE to meet certain emissions tests). I run my car with vacuum supplied directly from the manifolds and it runs fine under all circumstances." This...
by Woolfi
Mon May 14, 2018 8:57 pm
Forum: Series 3
Topic: Feeling a little low!
Replies: 17
Views: 1680
Germany

Re: Feeling a little low!

Sometimes the rear springs are "tired" and the car is low. My EV12 had this problem. I mounted 4 new GAZ shocks from Barratt with adjustable high. Now the car is roundabout 1,4" higher in the back than before and I have less ground touches than before.
Regards Wolfgang Gatza
by Woolfi
Mon Apr 23, 2018 4:40 pm
Forum: Series 3
Topic: Misfire and then stop until cool
Replies: 9
Views: 978
Germany

Re: Misfire and then stop until cool

A friend in Germany hat exactly the same proble last friday. Working and testig all saturday, he found a corroded cable connection in the ignition system. He cleaned this and all was okay.
Maybe this is also your problem, but this is far away to be shure.
Regards Wolfgang Gatza
by Woolfi
Wed Apr 18, 2018 7:32 am
Forum: Series 3
Topic: Ignition Amplifier
Replies: 14
Views: 3175
Germany

Re: Ignition Amplifier

In my car is the modern AB14 ignition amp plus a distributor from a HE-motor plus a drilling at one carb for the CORRECT vaccuum from a "tappered edge" piont to a advance capsule.
Result: no problems since 12 years with the ignition and a lower gas consumption at part throttle.
Regards Wolfgang Gatza
by Woolfi
Fri Apr 13, 2018 9:55 am
Forum: Series 3
Topic: Stomber v SU
Replies: 15
Views: 2178
Germany

Re: Stomber v SU

"The Strombergs are 1.75 inch compared to the 1.73 inch of the HIF44." This is not correct. The entrance of the Stromberg has only roundabout 41 mm instead of 1,75 x 2,54 = 44.45 mm. I was wondering, when I realised this the first time. The SU HD8 has 2,54 x 2, 00 = 50,8 mm. I don't know, why the S...
by Woolfi
Thu Apr 12, 2018 11:37 am
Forum: Series 3
Topic: Stomber v SU
Replies: 15
Views: 2178
Germany

Re: Stomber v SU

Hello John, you wrote in a former post: Hello there ! No difference in performance between SU's and Strombergs at all. I think, that there can be a small difference in power between the Stromberg carbs and the bigger SU HD8. But maybe the difference is smaler , than you can detect / feel when drivin...