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Humpty's finally got off his arse and begun a real drag car project!

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Camo Custom Title Time!

1,936 posts · joined Oct 2007 ·

#879982
humpty wrote:These holes in the throttle plates needed filling.... They are letting too much air through at idle, which is the cause of the high speed idle.... And I suspect they are also effecting the afr's too.... So out they came, and soldering up they have been.

Done...

Not meaning to be negative, but is there any chance over time, temperature, vibrations and the vacuum created after backing off from big revs could suck this piece of solder out. I'm think of were it's going to go if that were to happen (not good).

When I first saw the photo I was thinking, I hope you are going to silver solder them in - but it doesn't look like it.

I hope I am totally wrong and the solder is up to the job, I have no expertise in this area. I am just concerned for you and all the hard work you have put in.

All the best with the car 👍

Kev
I thought rebuilding a VW would be cheap - Shit I was wrong, just don't let the wife know !!!!

Click here for my (slowy) modded 1961 Beetle build.

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#879988
Yep.... Silver Solder was used Kev.... And solid throttle blades are on the way to replace these ones.
FUCH your early!

http://www.noh2o.org/

Stanley I guess the reward is in the doing of it

4,523 posts · joined Mar 2003 ·

#879994
If I leave now I might make it there by Wednesday...🤪

All the best mate. Hope it performs above your expectations.

Doug Sweetman Nil Bastardo Carborundum

2,128 posts · joined Sep 2002 ·

#880010
I think I will have to come along now.... Was planning to take my 6 year old son along to his first drag meet - if the opportunity come to show him a fast bug and convert him..... I would be silly not to !

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880472
With....



Without....



With....



Without....



What you reckon?
FUCH your early!

http://www.noh2o.org/

1916baja Custom Title Time!

1,990 posts · joined Sep 2007 ·

#880494
Without..... All the way!

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880506
Yeah that seems to be the global consensus.... Will keep them for the gloss black smoothies I've built up for the Ghia....
FUCH your early!

http://www.noh2o.org/

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#880515
Without.

🙂
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880520
Fiddling with some sort of air cleaner set-up.... And I use that term loosely!







This is just the parts sitting there at the minute.... Still need to tack it all together and sort out a mounting stud.... Anyone see any issues with running this?.... Apart from it not actually being and air cleaner at all.... :roll:
FUCH your early!

http://www.noh2o.org/

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 ·

#880556
Better than no air cleaner, but in my experience, a screen can be quite restrictive.
It has quite a bit of surface area, so this may still out flow the carb, or any other restriction down stream.

SO.
Have you sorted out the mixtures BEFORE going to the track?
Hurry up, i am getting old.😂
westi wrote:That's mad Alan.

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880562
dangerous wrote:Better than no air cleaner, but in my experience, a screen can be quite restrictive.
It has quite a bit of surface area, so this may still out flow the carb, or any other restriction down stream.

SO.
Have you sorted out the mixtures BEFORE going to the track?
Hurry up, i am getting old.😂
Your right Dave.... I just fired up the car and it's definitely running richer... Amazed that it seems to have effected it so..... Good thing I have a wideband O2 on board.... Gonna have a go at the mixtures again tomorrow.... It ran so sweetly before the mods.... If it's proves to be a pain, I'll pull the screen off and run without.
FUCH your early!

http://www.noh2o.org/

reub VWRX is gone...

2,054 posts · joined Sep 2002 ·

#880563
...with👍
Reub

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880566
reub wrote:...with👍
You following me around Reub? 😂
FUCH your early!

http://www.noh2o.org/

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#880640
how many turns out have you got your top srcew.
a 6/8cylinder holley on a bug will run a bit rich 😂 rich always better then lean.😊
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

Stanley I guess the reward is in the doing of it

4,523 posts · joined Mar 2003 ·

#880668
without and hurry up and race this thing.....😀

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880686
Nipples are off, and so is the screen...... The main needle is 2.25 turns out Ian and the idle mixture screws are currently 1.5 out.... What you running on Rose's car?
FUCH your early!

http://www.noh2o.org/

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#880704
humpty wrote:Nipples are off, and so is the screen...... The main needle is 2.25 turns out Ian and the idle mixture screws are currently 1.5 out.... What you running on Rose's car?
top 1 3/4 to 2 @ 7boost , told us to go 2 1/2 if 12 boost
1 1/2 .to 2 mixture.
we running Castrol edge sport oil 25/50
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880705
Righto..... Will back mine off a tad then.... It is running way better now the screen is gone, but still a little fuelly.... I'm set at 7.5psi max at the moment.... No boost bleed built in yet..... Will play with the main later today and report back.

Cheers again.

Simon
FUCH your early!

http://www.noh2o.org/

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#880993
All went pretty well tonight.... Not as quick as I'd hoped, but very productive all the same.... First run was really crap.... Car was running really bad.... I think on account of the fact that I washed the car this morning.... Every time I wash it, it runs like shit.

I should know better!!!!

Anyway... A really rough 15.4 was the first run.... Came back to the pits, figuring that the plugs had gone bad.... Sure enough.... Sooty as.... Fresh plugs in and the car runs sweet again.... 14.6 was the next run (I think).... Very lazy off the line... Leaving at 3500rpm... Lazy 60' of 2.06.... Hit 93mph through the traps.... Straight around for another run.... Harder launch at 4k.... Missed the second shift, but trapped 14.4 and 96mph I think.... Next and last run was very bad.... Running a pro tree this time against a new Nissan Skyline.... First race I lost.... Car bogged really bad.... Was missing big time on the line.... Really, really crap run.... 14.6 I think... Missing badly.... Plugs have gone again.... But the POS is making around 7psi, which is what it's set at.

Still have big fuel issues.... The Adjust-a-jet was messed with once tonight.... It's now sitting on 1.5 turns out, and the idle mixture screws are 1.25 out.... Too much at idle obviously, as the engine is producing a bit of black smoke.... I think the 50cc pump diaphragm (squirter jet is a 28) is too much for the lil'engine.... I have 30cc to put in tomorrow.

These numbers are just off the head.... I have the slips in the car.... Will confirm it all tomorrow.

A very successful evening out.... Still heaps to do, but all in tiny steps.... I can't thank everyone enough for coming to the track today.... The officials all really liked the car... The scrutineers loved it... it sounds awesome, looks the part, launches well and runs straight.... Time to boost it up!
FUCH your early!

http://www.noh2o.org/

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#881005
Awsome.....fun at the track 🙂

All this fuel/plug issues...crikey, must be driving you mad.....is your ignition doing what it is supposed to....is the advance curve doing what you want it to?
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#881024
so new set up is still way better. ?
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#881036
It's very frustrating for sure, but the it's running heaps better than with the weber.... Still not certain the ignition is right, but I know the fuel is rich... If that is caused by an incorrectly timed ignition, I don't know...
I think the issue with the ignition is more down to how I have mounted the sensor than anything else.... The way it's fixed, makes it hard to read the timing marks, so it's hard to determine timing accurately.... Also.... The bracket is clearly not strong enough as it looks like the sensor has touched the timing wheel, so things might be out of whack..... I'm going to redo the sensor bracket and build in some adjustment.
FUCH your early!

http://www.noh2o.org/

Stanley I guess the reward is in the doing of it

4,523 posts · joined Mar 2003 ·

#881043
Good news Simon. Baby steps is the way to go.

Mine used to soot the plugs up something fierce when I was running low compression.
I knocked the idle up to help it burn off some of the fuel. Even with the 600 Holley i don't have that issue anymore running higher compression.
Timing could also be part of the problem as you say and might be an easier fix. Jetting will also help.

Doug Sweetman Nil Bastardo Carborundum

2,128 posts · joined Sep 2002 ·

#881051
Humpty - hope you dont mind if I post a couple of photos ?

Crowd support was good for the bugs too. Unfortunately Herman's usually reliable (10 years on same combo) 2.7L type 4 has serious overfuelling issues and only completed one (ugly) run, bending traction bar and generally being a pig.

Rolling up to start line. Sadly, no epic bogan burnouts 🙂


Humpty's first run (about a 15.6 from memory), he still won even with the sooted plugs.


Another run later in the night. From memory, the third of his succesive mid 14 passes, with nasty bog on the start line.


One of the supporters in the pits (didnt catch a name)... low enough to gain approval from my son.


Hermans monster on its only run... didnt catch the time.


And there was a very tasty blue split (barnie I think) microbus in the car park outside too !

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#881052
Cheers for the pics Doug..... You make me look good! 😵‍💫

And that Barny you mentioned in the carpark is my brother 23 window BD..... Awesome bus that!
FUCH your early!

http://www.noh2o.org/

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#881064
roses bug only seems to get a bit fuely after idling to long.
on the road its great to drive.
i think we have to do it like top fuel cars just start it before the race.😂
Talking about fueling up those top fuellers make your eye water.
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

Doug Sweetman Nil Bastardo Carborundum

2,128 posts · joined Sep 2002 ·

#881153
Yeah seriously nice bus... First barnie I have seen in the flesh !

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 ·

#881286
I have found more information on the carb setup.... There is one other thing that I need to do to the carb to make it work for me.... All this info is hard to pull together, but I'm getting there.... It's mostly down to me asking the right questions.... And I can only ask the questions, when I have the experience and seat time done...

The car is killing plugs after only a couple of runs.... I have since found out that the issue is a common one, but one that is easily solved.... I need a smaller accelerator pump shot.... Which I suspected was a potential problem before I went racing.... After Wednesday's T&T, I know this is the problem....

I feel I'm getting very close to making the good power I know this little engine can make.... I still think that a mid 13 is there with the current setup (7psi).... Short gears and all.... Once the carburetor is sorted, I'll need to work on the launches and then more boost will be thrown in.... Then we will see some good numbers....

Then it's time for a built transaxle, HD axles and the stroker!
FUCH your early!

http://www.noh2o.org/