Boostn wrote:ok so what you are saying is Rod bought those parts cheap in the form of an engine instead of boxes.
Yes it was cheap Nick.
Much less than it would cost to buy the separate parts.
David,
when you factor in the lighter car,
no belt and muffler,
and the extra comp that rod has,(I assume yours is less than 14:1!),
you are right there.
I will find the build details and post up some assembly pics.
The crank is an 8 dowel 86mm scat with type 4 centre main and 2" rod journals.
Cam is Clay Smith with 280@.050" and has .615" lift at the valve.
(Rockers are the standard cast Autocraft with 1.4 ratio.)
I made an extended pick-up from steel tube,
and silver soldered it on so no leaks.
Sump is 5 quart CB sump.
Case is just an ordinary magnesium AS41 deal with 10mm head studs.
Dizzy is MSD with advance locked at 28 degrees.
Oil pump is an EMPI 30mm cast unit.
I had to machine the back off to align the inlet hole,
and while I was there,
I radiused where the port entrance meets the gears.
I also plugged both the pump and the case at the outlet port.
Replaced the cast FW with a genuine VW steel one and resurfaced the clutch surfaces.
I located the clutch with roll pins before balancing the crank, FW and clutch.
The step height was set to get the correct pressure and geometry.
Note the large hex nut...it needs all the help it can get in the dowel area.
The pistons are Wiseco in AC cylinders with .005" clearance.
(While talking clearances, all crank journals have between 3 and 3.5 thou.)
Gaskets are .040" thick.
Comp ratio was between 17.46 and 18.19...so this has been reduced to 14:1.
Chambers:
Ports:
Valves had been rubbing on notch diameter:
And valve clearance was too close, so this was changed, when comp was reduced.
Valves ,retainers, and collets are Ttanium.
Springs set to travel of .700".
The seal holes in the heads,
for the push rod tubes, needed opening up , and the washers on the tubeswere too large,
thus preventing the seal from seating,
so they were turned down.
No leaks!!
Finished:
(ported some new gaskets ready to fit the 51.5mm IDA's.
Pete says they have 46 vents, 195 mains(F7) , 220 airs and 65 idles.(correct me if I am wrong).
Data says perhaps a larger idle jet, smaller main and smaller airs should be better,
but up around 7800 all is sweet.
Good one Dave , your pic's are ART for us volksy nuts ! All parts where new on motor except cam (was a secet grind for drag racing ) . Was much easier buying from well none vw drag racer as a new turn key motor but we had a couple oiling issues so a complete look inside was needed . This when Dave work his magic again found comp very wrong ( 17.4 not 14.1 as paper work )
We notice the motor pinged on first burnout we did at earlier test & tune we went to . We had low oil pressure once motor good hot so Rod turned it off ,to come back another day .
Barrels - JayCee long , Melling cast iron oil pump with empi cover . Comp Eliminators ,these heads work well out of box but with hand porting , large titanium valves ,good cam , 51.5 carbs all add up to sweet allmotor combo .
Carb jetting is correct Dave , carbs came with that setting but a much smaller main jet so I richened it up .
So not perfect yet but a good start . Next - Rod ! I want a drive !😂
Craig Torrens6 times Australian, 7 times State Hillclimb Class Champion
Wow - Congratulations to all contributors for the excellent performance - the effort shows!!.
Rod, I don't see anything wrong with the reaction times (it's nearly finished and ready to burn____!)
Thanks for sharing all the details and pics, inspirational stuff! Compression really seems to wake these motors up. I remember reading about the likes of Mike (?)Smith's drag Bug and Roger Crawford's Bad Company Beetle in the States. With sub 2l engines they were running deep into the 11's. Over 14:1 compression in both cases and over 8000RPM, yikes!!
lookin good,but were's the vid's.not happy jan.
tell rod .may be the best of your life.lol,
the mad texan (Rod) must be happy and you pete must be alittle green with envy.you know you want to have a go.
tell rod that you need to do some more testing in your car before putting it in the black drag car,you know ,just to make sure everything is tip top.
can't wait to see her in action.
when is that show that you wanted to go to.
Sorry mate ! no footage on that night , hard to crew and film but we are heading out to willowbank (25th July) part of Dyno Mania 2009. Are you still coming down for Warwick ,mate ?
No stress Pete. Cheers for the reply.
I've a leave of absence approved by Rach - so plan to be there - unfortunately without either of my cars. Look forward to seeing the action and meeting a bunch of guys I read about all the time👍
Well , I think Rod was a little happy after Dyno Day 😁 with new engine making nice power and taking home dyno operators chose award too .
With big chokes engine has a quiet a big lazy window around 4 to 5000 rpm but after that it's an animal . So I'm sure with more tuning this motor should make the 200hp mark !
Yep!!!!!!! but was a liittle lean guys on that run (we keep no secrets here boys ). We had 13 dyno pulls , trying muffler , clossing up mid range with top end A/F ratio's , timing up & down , stinger , rev's , heat range oil to motor temp , learned alot today . Quick brake down ; 2387cc , 14to1 comp, racing fuel 14plus,51's IDA's ,comp eliminators 48 x 40 ,msd 6al .All runs done in 4gear too.
1 / From start with muffler 199 hp ( 195m's , 220 airs ,f7 emulsion, 46 ven's, timing 28 deg's
2/ 206 hp 180 m's
4/ 214.3 hp f11 emulions
5/ 218.9 hp full throttle at 100klms ( to lean at mid range A/F )
6/ 214.6 hp made a change to 210 airs , pull at 180f oil , A/F 13.2 mid to 12.5 high end .😵
7/ 208.1 hp cold motor , oil 150f
8/ 201.7 hp as above change timing up 30deg's & lean at mid range 🤪
9/ 211 hp timing back 26deg's ,motor warm & oil 170f (wow)
10/ 207 hp STINGER ON , LEAN !!!!!!!! 14.1 A/F 😬
11/ 209.7 hp changed mains 190 , A/F 12.5 (good)
12/ 204.6 hp changed timing up 28degs
13/ 212 hp Blocked stinger off (half of openning ) more back pressure 😂
We started at 10.30 finished at 2.30 , temp changed from 26degs to 30.6 deg's through out day . All this information could never have happened at race track conditions .
Over all very happy (Rod spending time and cash ) with results ,now we are looking forward to Warwick .🙅
Titanium valves, for a Chev small block I think, less than 5" overall lengthand 11/32 stems.
I think they are Manley brand.
I think the retainers and collets are crower 10 degree.
