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Posted by: Aaron Cox Jun 8 2006, 10:05 PM

long story about the down time on my car....

something along the lines of "smaller venturi's and raby jetting suggestion" to optimize performance....

blah blah blah... remove cold start stuff like a few guru's said... "why is it dumping 8 gallons of fuel down each throat" blah blah blah.... call brad... put cold start pistons back in... and finish the carb rebuild....

anyway. so last weekend had the car close.... but my lame dial fuel regulator croaked... and was spitting fuel out the accedl jets at "3" PSI... but falling on its face at 2.5....

Problem solved. KaptKaos sold/traded me a CB rotary internal regulated pump...

car idles great. starts up first crank. roll onto throttle, idle circuits werkin bitchin, and i was getting a little hesitation onto main tranisiton but would do OK at WOT.....

up the main jet to a 135 from a 130 and it is BADASS....

totally smooth thru the powerband, no smoke, no hiccups, backfires or coughing.....

runs AWESOME. i am soooo stoked. car flies. lit up the 8" fuchs wrapped in yokohamas like butta LOL.....

i have a slight crack in a header weld and need to fix it....

gotta throw in the short geared tranny... and go fight some electrical gremlins, and i am good to go...

my dad liked the second gear chirp LOL

AA

Posted by: TROJANMAN Jun 8 2006, 10:10 PM

Holy Crap.............Did you see that .........................?......................





wait........

















There it is (good job aaron )


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Posted by: jd74914 Jun 8 2006, 10:11 PM

Aaron, do you have a list of your entire engine formula/specs list

Posted by: BigDBass Jun 8 2006, 10:13 PM

Posted by: Aaron Cox Jun 8 2006, 10:14 PM

blah....

see if i can remember...
71x94 2L
8.5 ish compression
Eurorace header
Big cam....
Mallory CDI box, Unilite Dizzy, and CDI coil on the firewall....
2L heads, with SS valves, big springs, and stock valve sizes....
38mm oil pump, front cooler, mocal thermostat, setrab cooler...
weber 44's, 34 vents, 50 idles, 175 airs, 135 mains....

stock gear box as of now....
have my A F ZDFlip S ZD bpx to go in....

Posted by: BigDBass Jun 8 2006, 10:15 PM

There you go with speaking code again....

Posted by: Hammy Jun 8 2006, 10:17 PM

Posted by: Aaron Cox Jun 8 2006, 10:21 PM

sorry... gear ratios LOL

Posted by: jd74914 Jun 8 2006, 10:23 PM

Cool. If my tranny chart here is right that looks like a nice short AX tranny

Posted by: Aaron Cox Jun 8 2006, 10:24 PM

very good son,

with a stock 5th for cruising.... (have to wind out 4th to be in the power band for 5th tho....)

Posted by: So.Cal.914 Jun 8 2006, 10:49 PM

[quote name='Aaron Cox' date='Jun 8 2006, 09:24 PM' post='699158']
[quote name='jd74914' post='699155' date='Jun 8 2006, 09:23 PM']
[quote name='Aaron Cox' post='699148' date='Jun 9 2006, 12:14 AM']

[/quote]


with a stock 5th for cruising.... (have to wind out 4th to be in the power band for 5th tho....)
[/quote]

Have to wind out 4th, bet that will break your heart. Sounds nice...

Posted by: Aaron Cox Jun 8 2006, 10:50 PM

3rd at 6k is about 65....
4th at 6k is 90
90 in 5th is about 4200 rpm

im set LOL

Posted by: trekkor Jun 8 2006, 10:58 PM

Great job!!

Now come up here so I can work you over at the a/x


KT

Posted by: Aaron Cox Jun 8 2006, 10:59 PM

fine....
A F flipped ZD S and ZD

enjoy


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Posted by: Aaron Cox Jun 8 2006, 11:00 PM

i never said i could drive!!! HAHHAHAHAH

Posted by: rick 918-S Jun 8 2006, 11:02 PM

Posted by: dinomium Jun 8 2006, 11:36 PM

Congrats man! Drivin is better than wrenching, at least I think it is!

Posted by: Rand Jun 8 2006, 11:42 PM

Congrats AAron. Great news!

Hey wait, where'd that last one come from?

Posted by: sherman1 Jun 9 2006, 12:07 AM

Congrats AAron. Great news!




No kidding, very impressive.....we (most of us anyway) are not worthy!

Posted by: TonyAKAVW Jun 9 2006, 12:31 AM

Congrats!!!

Thats a big accomplishment... Lots of work into that car. Looks and runs awesome, what more could you ask for?!

-Tony

Posted by: Andyrew Jun 9 2006, 12:42 AM

Ya!!!!!


Now.... Were are the pics of your lowly 2.0 smoking the tires?

I could never get mine to do that... then again I had 57rwhp... lol

What is your estimated hp?

Andrew

Posted by: URY914 Jun 9 2006, 05:58 AM

Good Job!

Posted by: rhodyguy Jun 9 2006, 08:18 AM

cb rotarys work very well. i've been beating that horse for some time. now that you've got it running good...i bet you can go down to 45s on the idles. sounds like you're ready to drive to pland.

k

Posted by: JP Mikey Jun 9 2006, 08:35 AM

As long as it don't overheat you be cool.....

Posted by: Gint Jun 9 2006, 08:36 AM

Grats Aa!

Posted by: brant Jun 9 2006, 08:54 AM

good job Aaron!!!!!

Posted by: Grimstead Jun 9 2006, 09:00 AM

Good Job! Can't wait to ride in it.

Posted by: Headrage Jun 9 2006, 09:01 AM

Wanna trade?

Posted by: spunone Jun 9 2006, 09:02 AM

Did you get time to put on the new stacks??or are ya still dicking with them LOL

Posted by: Lou W Jun 9 2006, 09:17 AM

Congratulations.

Posted by: Aaron Cox Jun 9 2006, 09:54 AM

hey kev, i owe you for a couple tips you gave me (just not the chokes tip LOL) nut for the tomlinson book, and the rotary pump shizzle....

works great... 50 idles are just right...

AA

Posted by: Aaron Cox Jun 9 2006, 09:55 AM

Havent cut the plates out yet...... and need to lower motor 1/4" inch to clear on the right side... but that may bring headaches...

so yes.. still dicking LOL

AA

Posted by: rhodyguy Jun 9 2006, 10:09 AM

hey, is there a trick to get the rotor out of the mallory? it's either a snug fit or the little screw retains it, and i don't want to reef on it. i think my power loss may be due to a toasted rotor and cap. it's as it came to me from daveh and i have no idea how many miles he put on it prior to.

k

Posted by: Aaron Cox Jun 9 2006, 10:11 AM

yeah.. they are on there snug....

grab and pull, maybe twist just a tad.....

BTW - caps are like 25 bucks (i broke one )

Posted by: Gint Jun 9 2006, 10:12 AM

I wondered the same thing on mine. But I finally bit the bullet and gave it a good yank. It's a pretty tight fit (at first anyway).

Posted by: Aaron Cox Jun 9 2006, 10:12 AM

what car do you have a unilite in??

Posted by: Gint Jun 9 2006, 10:15 AM

It'll go in the zambeziteen... but I haven't installed it yet. At the moment it's still lookin pretty on my desk at home.

Posted by: rhodyguy Jun 9 2006, 10:18 AM

yep. cap and rotor run the better part of $40(damn). they seem to last tho. hopefully that's my problem.

k

Posted by: Toast Jun 9 2006, 01:29 PM

So, where's my ride?

Posted by: drewvw Jun 9 2006, 02:02 PM

sounds schweeeeeeeeeet

Posted by: bd1308 Jun 9 2006, 04:25 PM

Great

your's gets running, mine goes down

b

Posted by: yeahmag Jun 10 2006, 09:30 AM

Aaron,

Where did you mount your CB Rotary pump? I have one waiting to go in...

Thanks.

-Aaron

Posted by: Aaron Cox Jun 10 2006, 09:39 AM

front trunk

Posted by: yeahmag Jun 10 2006, 09:41 AM

Any tips on wiring it up or mouning it? Do you happen to have any pics?

Thanks!

-Aaron

Posted by: Aaron Cox Jun 10 2006, 09:44 AM

i had a facet on rubber isolators up front.... so this went in the same spot...

i can take some pics...

or you can come over and help me diagnose a small lean stumble on transition:)

Posted by: yeahmag Jun 10 2006, 09:53 AM

I'd be happy to do that! I'm most comfortable with Dell's, but I should be able to help. Are you anywhere near John's machine shop? I'll probably be there next weekend...

You are always welcome up here, I have a full compliment of carb toys and seeing as I'm a Dad now it can be hard to steal away some time...

Let me know either way.

-Aaron

Posted by: Aaron Cox Jun 10 2006, 09:54 AM

ive got the web's 95% there.... everything i read says it is venturi selection... but the sweet spot on this motor BEGINS at 3500... so i may just have to deal with it...

we also think that we might be able to "trick" this transition with more accell pump squirt...

AA

Posted by: yeahmag Jun 10 2006, 09:57 AM

What vents, E-tubes, mains, and idles do you have in them? What size are the bodies?

-Aaron

Posted by: Aaron Cox Jun 10 2006, 09:59 AM

weber 44's f11, 135 mains, 50 idles 175 air....

Posted by: yeahmag Jun 10 2006, 10:01 AM

What size venturi?

Posted by: Aaron Cox Jun 10 2006, 10:02 AM

34's

Posted by: yeahmag Jun 10 2006, 10:11 AM

I'd play with the airs first myself - and maybe the mains. You can change the curve by changing the mains and airs at the same time (going up or down on both). You can change the timing by some degree (and top end richness) by changing just the airs alone. I ended up with a strange combinations on a few street motors before... Typically due to more carb than motor

Several people sell replacement E-Tubes for Webers and others have had luck changing them to solve problems like this, but I'd have to see/feel it before I suggested changing from the factory default. If it's a good buck/stumble it might be in the cards...

Do you have an O2 sensor on it (even a cheap CB one)?

-Aaron

Posted by: Aaron Cox Jun 10 2006, 10:14 AM

No 02 sensor....

and these were a starting point for jetting from Jake...

dont have many jets to play with....

Posted by: yeahmag Jun 10 2006, 10:21 AM

Mains and Airs aren't too expensive... I wouldn't hesitate to increase the mains or decrease the airs (seeing as it responded well before). Maybe someone on the board has a stash of parts you can play with.

While starting points are a great help, don't hesitate to start to play - small steps. I'd go to a 140 main and see what happens... If that's not quite it, leave the 140 in and move down to a 170 air.

Again, I'd have to feel it to see. An O2 sensor would really help here - even a cheap one. I'll ask around and see if anyone has some jets you can borrow.

-Aaron

Posted by: yeahmag Jun 10 2006, 10:25 AM

Oh... I do have jet reamers and gauges if you want to go that route too... Let me know and I'll get them to you.

Posted by: Aaron Cox Jun 10 2006, 10:35 AM

Aaron.. i had 130's in there... and was falling on its face.... put the 135's in... and off it went.....

i think the mains are spot on... gut tells me just a little fat tho.....

wish i had a box of jets....

thanks for your help mang
AA

Posted by: yeahmag Jun 10 2006, 01:16 PM

My jet gauges are only whole numbers, but you could use my reamers to try a 132.5. If you have a noticable stumble you are going lean... Maybe we could try a smaller air corrector to bring the mains in sooner.

I'll ask around...

-Aaron

Posted by: bd1308 Jun 10 2006, 01:24 PM

I'm glad you finally got it running though

these cars are fun when they work...

Here's to longevity and high relibility <<-cokes, I dont drink...Diet too, AA likes diet coke(IIRC)

b

Posted by: Aaron Cox Jun 10 2006, 01:36 PM

Aaron... you make me want to drive out to pasadena....

when are you going to be at johns?



the other AA

Posted by: Brando Jun 10 2006, 02:18 PM

Hey, now that it runs and drives like a raped ape, let's drop the trans so it's on jackstands again!

Posted by: Joseph Mills Jun 10 2006, 03:51 PM

Congrats on your progress Aaron.


Mine is in about the same state of tune as yours. Starts and idles really great, runs like a bat out of hell, and just does not run hot at all. I may not even need the external oil cooler I have ready to go in it.

However, it does have a stumble when you punch it, or easy pedal around 3800rpm. Haven't resolved it yet either. Thought I might mess with the accelerator pumps. Anyone know which way you turn them?

If you would like, I have some 140 mains and 60 idles I'd be glad to send you to try out. Won't cost you a thing (unless you want to keep them ).


..

Posted by: Aaron Cox Jun 10 2006, 06:49 PM

hey joe!

id be interested in the 140 mains if you dont mind! mighty gracious of you....

accel pumps...

i believe CCW is more pump.... but not quite sure... i need to go play with mine...

AA

Posted by: Joseph Mills Jun 10 2006, 07:12 PM

PM your mailing address and I'll get them on their way to you first thing monday.


...

Posted by: yeahmag Jun 10 2006, 10:09 PM

John hopes to have my stuff done this week, but you know how it goes

If he does get it done I'd try and drive down Saturday - If not you are welcome here any time.

-Aaron

Posted by: Aaron Cox Jun 11 2006, 01:00 AM

Hey all...

was down at johns and claytons....

after many a test drive and jet swap... it is determined that the beast has a monster cam... and pulls from 3.5k to 6500.... and wishes to go farther with the 34 vents...

problem is... low end driveability blows... cant tune out the transition flat spot, due to too low of air speed.

I need some 32 venturi's for a weber 44 IDF. i have 36's to trade..... if that will suffice...

please help

car is scary fast....

Posted by: Type 4 Unleashed Jun 11 2006, 01:40 AM

Wouldn't Diapers also be needed And I might have some 32's

Posted by: Aaron Cox Jun 11 2006, 01:41 AM

richard...

that would rock...

need some 36's?

Posted by: MarkV Jun 11 2006, 01:42 AM

Aaron,

You might try some bigger idle jets. My car has a flat spot w/ 60's that goes away w/ 65's. I am running 34mm vents, 132 mains & 180 air on Dellorto drla 40's. My engine is a 2056 w/ 8.5:1 compression. Running a Mallory distributor with 18 degees of advance in the distributor set at 12 degrees initial.

Posted by: Aaron Cox Jun 11 2006, 01:47 AM

mark...

we put 55's in and no real change... just got sloppier on take off....


i run 12 initial, 28 final.... in my mallory...

94's here and about 8.5:1..... 60's seem huge!

currently 50 idles, 175 airs, 135 mains, 50 accel, f11 emuls..... 34 vents....

AA

Posted by: Type 4 Unleashed Jun 11 2006, 01:47 AM

Sorry I just looked, their 36's

What idel jets and what emulsion tubes?

Posted by: Type 4 Unleashed Jun 11 2006, 01:52 AM

Check your Accelerator pump linkage Adjustment. when does it start to shoot?

Posted by: Aaron Cox Jun 11 2006, 01:54 AM

played with that already...

they were about 3/16 of thread past the nut...
went less... made it worse (counter clockwise is less fuel right?)
went more .... didnt make it any better.. and made it bog on top a little....

come drive it.

Posted by: Type 4 Unleashed Jun 11 2006, 01:59 AM

Where you at tomorrow? I'll be heading out to perris

Posted by: rhodyguy Jun 11 2006, 07:28 AM

hey, when daveh started his engine with my carbs, the "recomendation" was start it with 45s on the idles. pull a plug and check the color. i'm going to toss a set (45) in. i'm curious to see if the idle/air mixture screws will be a bit more sensitive.

34mm vents in the 44s for the "new onion" as per jake. 2056 w/one of his cams. a tip, if everything goes to hell quickly, check the cap and rotor first thing. that's why my "hill power" dissappeared. the silver gets a engine compartment douche and it's bottom cleaned today.

k

Posted by: Aaron Cox Jun 11 2006, 11:46 AM

richard.... in corona today... work till 4:30....

Posted by: yeahmag Jun 11 2006, 11:54 AM

Dell's and Webers are different beasts. A Dell is quite happy to have a 60 idle, where the Weber will run way to rich there... Apples to oranges.

Aaron, Weber vents are still availble if you choose to go that way. I'd still like to see you richen up the mains or choke down the airs just to see what happens...

-Aaron

Posted by: Aaron Cox Jun 11 2006, 11:56 AM

i can try to put some bigger mains in.... Joe offered to let me borrow some....

so you advise leaving the 50 idles in?

Posted by: yeahmag Jun 11 2006, 12:04 PM

I'd think with a big cam and those vents you'd need the 55's, but the car will tell you...

Do realize you need to be dead nuts on in sync (I have a nice snail style sync meter you can borrow) and you must reset the idle volume screws every time you change the idle jets. Other wise you won't get a true feeling for the change.

-Aaron

Posted by: Aaron Cox Jun 11 2006, 12:10 PM

right. we did that. carbs are dead nutz...

all flowing same amount of air thru the snail....

we put 55's in, and leaned it out 1/2 turn.... made it idle......

with the 50's in, idle mix screws are about 2.5 turns out...

Posted by: scottb Jun 11 2006, 06:53 PM

hey aaron, you have a pic of your set up? i have ordered one of these pumps and would like to just swap out my current one that is already in the front trunk.

cheers,

scott

Posted by: Aaron Cox Jun 11 2006, 07:13 PM

Posted by: Al Meredith Jun 11 2006, 07:37 PM

Let me convey my recent experience with my 912E. I just installed a 2056 which I built with Jake parts. Heads are from HAM with stock 2.0L valves and very small CC. I calculated 9.4 CR . 40MM webers with 34MM venturies. Jake said to run 130 main, 200 air and a 60 idle. The carbs had 55's in them and I drilled to what I thought was 60. I had the wrong drill and they are about 63. The engine will only idle at 1500 RPM with the 4 idle screws all the way in. It is VERY rich! I'm still using a 009 , just to get it up and running. I've ordered 55's and 60's . BTW the engine runs strong now.. oil smells like gas. Any suggestions?????? Al

Posted by: Aaron Cox Jun 11 2006, 07:39 PM

i have a 71x94 2L... not a 2056.....



start your own thread or cal jake....

Posted by: rhodyguy Jun 11 2006, 07:51 PM

change the jets and the oil. start with either one, i'd do the 50s first. your bottom end response will surprize you. if you've been trying to seat the idle mix screws in too tight grooves wear in needle. used carbs should always be checked for this. also the little o-rings. they crack and turn to crap. same for the idle jet holders.

with the header, low gearing, and carbs you're not going to sneaking up on anyone aaron.

k

Posted by: scottb Jun 12 2006, 04:09 PM

aaron,

perhaps i should clarify my request....

a pic of the new pump mounted in the front trunk so as to provide a visual reference for those who may wish to duplicate your set up!!!

cheers.....

Posted by: spunone Jun 12 2006, 05:11 PM

So i take it Aa-Ron you are not running a Fuel regulator in your car?

Posted by: Aaron Cox Jun 12 2006, 06:28 PM

kevin...

carbs are 3 years old. fully rebuilt since new.... i just got some 32's from craig downs, and wil try them out.... new o rings on all idles...

but good thinking....



LOL. that comment made my day....

Posted by: Brando Jun 12 2006, 08:04 PM

I don't think he'll be sneaking. You'll just hear a roar similar to a T-Rex then a black blur fly past.

Unless you're on the freeway. Then you'll hear what sounds like a dying hippopotomus' groans as he downshifts and eagerly attempts to catch you, until he hits 5th gear and tops out at 105.

Posted by: Twystd1 Jun 12 2006, 08:11 PM

He has a stock 5th gear....

Twystd1

Posted by: Aaron Cox Jun 12 2006, 09:47 PM

werd... wich is still in the powerband on the upshift to 5th

Posted by: Aaron Cox Jun 12 2006, 09:49 PM

huge shout out to craig downs.. for hooking me up wth 32 vents..

Posted by: Aaron Cox Jun 13 2006, 04:42 PM

ok.. wonderbox tranny is in...
header is out, to go get beadblasted and have a crack welded up....

old tranny needs a bath...

scott... here is your pump picture.....

i call this pose the "ryan seacrest" LOL


the tranny... old and new


scotty... here be your pump picture...


closer...


and the euro race header...

Posted by: scottb Jun 13 2006, 05:23 PM

aaron,

thanks for the pic.

you have your car up in the same fashion i consider to be a great idea for engine removal. the concern voiced by others was the stability of the front on the ramps. any probs?

my car goes under the knife this weekend. i am asking for time for fathers day. time to do whatever the hell i want without having to worry about anything else. priceless.......

Posted by: Aaron Cox Jun 13 2006, 06:36 PM

the ramps have 3" "wheel cannot roll off" bumps on them....

safer than jackstands....

and use big 6 ton jackstands under the trailing arm....


i wish i woulda filled the tranny while it was out.....

i have no pump.. nor a squirt bottle.... just 1 gal of coastal 90w....