Jokers evolving Rally car Avenger Discussion

[avenga]

This is a thread to discuss Jokers evolving 1978 Avenger

[avenga]

Cool action shot from Otaria Road. How did you place?

Did you get any new in car footage?

[kierbear]

lol it looked like when u were scrapping it that it didnt really want to leave u

[JoKer]

haha & yup incar : http://www.youtube.com/watch?v=WpRO63GrSG8

[avenga]

Awesome video, looks heaps better now without the tape over the lens like last time.

nice recovery at 0:55.

[JoKer]

yea not bad for a cell taped to cage eh next run batt came loose and grounded whole car killing it (next vid in sequence

[avenga]

Thanks for the latest update. It reminds me of my old days of racing.

I think pretty much every time I ended up breaking something by the last run. I say if your car isn't broken by the end of the day then your not trying hard enough.

It will be good to see the improvements you get out of the new motor. It must be pretty well balanced and have a good set of valve springs to pull 10K RPM. My race car engine could pull just over 9K before it would get valve bounce.

Keep up the good work and can't wait to see you race in person at the old school nats.

[hunted]

according to the guy joker got the motor from, it has spent its life as a rally/race motor and was built up to pull 12500rpm.its been rebuilt a few times and before it went bottom up recently he would sit it on 10k.

cant wait to see it running

[JoKer]

yea everyone is dubious about the whole 10k thing.. dyno booked for 3 april

[avenga]

Who did you get to do the cam grind? What are the cam specs?

I got Kelford cams to do my cam grind. They charged $202 inc

[JoKer]

I have a KE26 on the shelf for $80 offa TM

the motor I just picked up also has a Kelforld ground cam in it - specs are on a sheet of paper at hm currently

the prices I just posted are all Crank grind related - top end is fiiiiine

[JoKer]

Cam Specs of my Spare cam - will most likley rebuild the tired 1600 with this cam as a spare

Cam

http://www.trademe.co.nz/Browse/Listing.aspx?id=345496984

I won

thanks to another member for the specs and heads-up

Quote from: Avenga
check this out

http://www.trademe.co.nz/a.aspx?id=345496984

It is a Kelford Cams F29 grind. From what I have read it is low end race spec. I don't know if your head would be big enough for it and it is more suited for dual webers/dellortos but could be worth a shot for $100. I use a custom made F63-7 Kelford cam in my road car.

These are some F29 specs I pulled off the net, they are from a toyota cam but I am pretty sure the F29 profile is the same over all car makes.

F29
Cam Lift 0.290"in 0.300ex
Valve Lift Net 0.419"in 0.432ex

Duration @ 0.050 236 in 248ex
CEnterline @ peak lift 105 105
lobe seperation 105

Cam time @ 0.050" Camlift
Intake open 13btdc
intake clases 43abdc
Exhaust Opens 49bbdc
exhasut close 19 atdc

Valve time @ 0.015" Camlift
Intake open 37btdc
intake clases 67abdc
Exhaust Opens 72bbdc
exhasut close 42atdc

[avenga]

haha, I misread it as cam grind, I forgot you brought that cam off trademe. That should be pretty good for your new engine.

I didn't need a crank grind on mine but I did get it polished which cost $90, shiny engine internals FTW!!

What carbs are you going to run on it?

[JoKer]

see eoi thread - twin strombergs balanced/knife edged and matched to the head apparently

will stick with them

stil have Twin Solexes in the shed with manifold, have had the car running on then but was unhappy/need tune - will sort them out next season maybe

[avenga]

Sweet, port matched to the head is a big thing. I got my dellorto manifold enlarged and matched to my head. makes it flow heaps better. hopefully he has enlarged the ports and the manifold while he was at it.

It will be interesting to see what sort of power you get out of it.