New engine for warwick, photos

Put the finishing touches on this new Drag racing engine today, it is 2380cc, 86 X 94 in a VW mag case, with Compertition Eliminator heads, 12 to 1 compression and 51.5 mm Weber IDA's, the engine was built by Shimmo, heads by Dave Butler, I have just made and fitted all the tinware and "fiddly Bits"

[ Edited on 14-8-2006 by Menangler ]

Is that the top secret car in the background Dave....?:P

LOL. Yes that looks familiar to some obscure pic in VWMA. Nice looking motor there Dave.

How about some more pics of the car in the background please Dave

Not soo Top Secret now !

👍

Good on you Dave!

So Fabio will be racing then will you have time to test the car ??

nice....👍

Very nice Dave!

phwoar...... old skool kool with the BIG IDA's and magneto..... love it, and the big plus, all in a VW magnesium case too !

Any guesses on hp / torque figures ?

Looks good.

Whats the deal with the weight where the pulley goes?
No cooling?

What car in the back ground? there's no car in the back ground!

The "weight" on the end of the crank is a Dave Stoker made equalizer pulley, It will be sent away to have a belt groove machined in it, as soon as I work out the alignment.

Not sure if we will have time to run it before Warwick, still have a lot to do.

awesome. top werk. 👍

sweeeetttt👍

Very,very sweet Dave,Fabio, Tells us little more about combo guys!!!!! What carb jets combo ,to start with (190 square) Is that a 4Quart sump !what oil level will you run.!(Rods ,just on oil stick ).Great to see another dragcar on the scene. Has Fabio got any old Pics when he got the beast.(show us)

Anything new to report?
When are the maiden runs?

Ran it on the Dyno yesterday, carbs are all over the place, too rich down low and good up top, will be running it again next saturday with some venturi changes.

Motor runs strong and makes all the right noises from 5 - 8000 rpm, just got to make it better down low.

Menangler wrote:What car in the back ground? there's no car in the back ground!

Oh Dave..... You really are a card..... Gotta love Inch Pincher II styling!

Rules of thumb are venturi 2mm smaller than valve = 46 absolute max.
And 4 x venturi on mains...again I would use a max of 195 to start.
This will be rich down low (with same size "air") I would guess(its a guess..you must dyno with A/F meter)
In this case I would dyno till you get the main correct up to 5-6000 rpm,
and then use smaller airs to correct when the engine gets lean up high(F7s?)

Most engines I know with IDAs seem to drive nice with smaller mains and airs,
than what our American friends seem to use and recommend.

Hope this info is of some assistence.
Smaller venturies than 44 will be better but restrict those heads.

[ Edited on 10-9-2006 by dangerous ]

Dave

Will the Tooth Fairy know how to drive it ???

looking good

Dave (Dangerous Dave),
It has 46mm vents now, I think we will try some 44's, the air fuel is good at 5000 rpm and up, with a 155 main but way rich down low, almost undrivable. it has F7's and idles are 55's

Try again on saturday.

Huh... Thats a tri-fecta!... three Daves in a row!.... Now where's my booky... Gotta put a bet on!

Menangler wrote:Dave (Dangerous Dave),
It has 46mm vents now, I think we will try some 44's, the air fuel is good at 5000 rpm and up, with a 155 main but way rich down low, almost undrivable. it has F7's and idles are 55's

Try again on saturday.

Man that is unusual for such a small main.
Must have a very small air jet, or a float level that is too high.

Pete and rod run about 180 and 180 in their main and airs, with 44 vents.
My pref is to run slightly smaller mains than that, but a smaller air will then be needed.
Have a talk to Henry.

Is Fabian still in Orange, or has he moved back to inbredburge...sorry, I mean the Shire. 😀

He is still in Orange.

Things are looking good guys.I hope I can help,dave. What fuel was being used ,Was motor in car or out , fuel pump and presure. The big venturi helps at top-end ,so I would start with 42 or44 to get going for 1/8th mile racing.Those heads and 51carbs will flow lots in rev range latter on. The yanks like to start with 3full steps apart when it come mains, airs.(1) AIR jet- effects higher rpm , 0.15 increase in AIR jet =0.05 reduction in main fuel jets.(2) 1mm increase in Venturi dia ,you can expect to move your main jet size up by 0.05 (3)Main jet effects full rpm range - any change made to the main jets ,has 3 times the effect as similar change in the AIR corrector jets. The yanks like to start with 200airs becouse it's nice round figger Then 3full steps smaller in main jets =170mains .Dean Lowry starts with square tune up on LARGE VENTURIS in dia's.(46mm).THEN tune air jets because its a safer way .MY motor 2332 -14plus fuel ( 11to 14 in compression ) 170mains ,195airs ,65idle, 44vents .Anything below 3000 rpm LOOK at float level,main jets to small (look at plug colour) ,check pump jets are clear,idles not dripping ,timing on motor ?????? Hope we can help !

Thanks Pete,
I have asked the jetting question on the cal-look forum, just to get a ball park idea, the more info I get the better at this stage, we then can then try a few combo's on the dyno and see what works best.

Can't wait for Warwick. it will be a great weekend.

What is your jetting and venturi plan Dave ?
Oh, those valves are 48mm.
With those heads and that cam, it will most likely come on at about 5000 anyhow.

HOT !

So, what is the latest Dave?

Had a great day at Mike's yesterday, carbs are sorted, Mike changed the venturies during the week down to some 42's to make the engine more drivable off the line, until Fabes gets used to driving it, comes on at around 3000 rpm and makes max HP at 6100 rpm, lost about 3 hp with the vent change, but it pulls much better down low, It sounds great on the dyno!!! screeming its lungs out!

Also took mine up for a run, Also changed vents from 44's to 43's, and went back a bit in jetting, and bumped up the timing to 32 total, and found another 5 hp. and it didn't ping on 98 octain unleaded fuel. lesson learned "bigger is not always better"

Today I left sholdered my berg linkage for a better cross shaft hex bar linkage, I have been trying to get that Berg linkage syncronized for 2 years, the new one took 2 minutes, so now both carbs get full throttle at the same time, and it idles. Changed over to a coil pack electronic ignition, as I was having trouble with my magneto's advance, now it is much smoother down low.

Looking forward to Warwick now big time!!

Big thanks to Mike at Custom Bugs and Buses for his time and help on the dyno and the work he put in on the car during the week, and Henry for his advice and bringing his spare Weber Vents and jets.:thumb

[ Edited on 17-9-2006 by Menangler ]

Sounds good Dave!
What ignition did you get for yours?

It is just Compufire, the one that has the alloy cap that replaces the stock cap and rotor, It has a coil pack that the plug wires go from. Rod sells them, very basic and cheap

You the man Dave, good to see your still a crazy bugger. Good luck at warrick.

So Dave,
How did it go on the Dyno and then at Warwick?
Lets hear some power figures and how it went.
I saw one run where Fabian looked like he had changed personality!!..Doctor Hyde
It sounds very strong in the upper rev range!

Dave,
Fabes had a good day at Warwick, he just needs to get used to the car, he was leaving the line too easy and shifting at 6000 rpm, we kept telling him he had to "hate it" his best time was 8.1 @ 86 mph? I think.

He gave me a drive, (that was the loose one you saw) I changed the shift light to 7200 rpm, but missed the lights coming down, hit it hard off the line and it went sideways, just missed the wall and wobbily all the way down, pulled very hard in 2nd and 3rd, it was big speed at the end but no time, couldn't stop for the return road and had to use the grass, when I got back (still shaking) I checked his tyre pressures with my gauge and they were 28 psi in one and 12 psi in the other tyre!!, I think he was trying to kill me. After that was fixed he found it much better to drive and thats when he did his 8.1, still bogging the start.

Engine made 171hp at the wheels on Mike's Dyno, so with some driver practice it should be in the 7's soon.

You need the sticker of Dave Stokers car on the dash

" Drive it like you Stole it "

It was good to see the car go down the track for the first time

Menangler wrote:I checked his tyre pressures with my gauge and they were 28 psi in one and 12 psi in the other

Hi Dave , I tried to explain to Fabian that tyre pressures are not about the average pressure of the 2 rear tyres . When you are putting in 20psi you dont add the 2 rear tyre pressures and divide them by 2 , the same amount should go in both tyres . Ha Ha !!:beer