255 replies to this topic

[greens nice]

Thanks jonesy, my own engines have all been flat tappet's, i made 250 on meth with the 9 port combo and now the 259 with this eng with a 12 port and weber's.

 

https://www.facebook...er&notif_t=like

 

So i went racing last night, car is still in one piece so that is a positive.

It's developed a misfire at 7200rpm which i think is spark/electrical, you can slightly hear it in the 1st-2nd & 2nd-3rd gear change, so i was just shifting at 7000.

Wouldn't even go past 7200 in the burnout.

 

I changed the gear's from 4.56 to 5.00 and now i can't get it to hook !! I've also bent the slapper bars for the 3rd time.....

thinking of trying some of these http://www.srdparts....uemart&Itemid=1

 

hoping to run some more mph when i fix the miss as i was crossing the line at about 7100 when it starts to go flat/miss.

but the best et was 12.15 and best mph was 109.7, went 1.68 to the 60 and has been 1.55 previously.

[SA EH]

LOVE the revs! Sounds awesome mate.
That rear end traction set up looks a fair bit different to caltracs, but just the next thing to do hey!
Do you do all you're own head porting??

[greens nice]

yeah i think the SRD bars will be a bit easier to fit, less mod's to the front spring eye mount.
I port my own heads yes, had a bit of help at the end from my mentor with this one, seems to work alright   

[Stinga]

pretty good price on those SRD bars too,im keen for a set for my hd. What Rear leaf setup are you running at the moment Kevin?

[greens nice]

Just EH ute springs with 2 leaves removed, I turned up some alluminium bushes for the front spring eye.

Keen on a set of Calvert split mono leafs but they wont be cheap by the time you get them here.

[warrenm]

How much air gap are you using between the end of the slapper bar & the spring eye?

SRD traction bars look Ok.

Your giving me some big numbers to chase at the 6 bangers later in the year.

You need to hold the right pedal hard on the floor through the gear change, don't lift.

[greens nice]

they have about 5mm gap, I've tried them with gap's and preload and nothing really helps, pinion angle is 6 degrees.

hehe yeah i still have to beat the purple lc, i think he ran 7.5* something on the 1/8 last year i went 7.68 last night.

I think that's the gearbox's fault, it doesn't like to change gears when i hold it flat   

Why do we insist on doing it the hard way with coggers !?!  

[warrenm]

It's not the hard way, but practice makes perfect.
Is that 5mm with you sitting in it?
Maybe the rear shocks are a little questionable?
Is that 6° down from the crankshaft centre line?
The oil is to slippery for the syncro's, so you have to granny shift. Try a SAE 30 gear(mineral) oil that meets GL-4, that might help it shift.

[greens nice]

5mm with me in it, the rear shocks are QA1 single adjustables, Calvert 90/10's up front.

yep 6 degree's down from the centerline.

you could be onto something it has a 75-85 penrite synthetic in it at the moment.

 

tell ya what dj pull the bleeder and all ya gear out of toy-202 and i will test it out for ya !    

but this is what tickles my fancy http://www.racingjun...-trany-4-1.html

[greens nice]

yeah but i still can't manage to bust a w series supra box so i think the nash will be fine.

dog shift would be good but price tag comes with it and i can't really afford a $3000 clutch.

 

hmm i dont know, I've just finished building the car after 3 year's, I'd like to enjoy it a little first before i go ripping it apart again   

[N/A-PWR]

yep, enjoy it till it dies, and then rip it apart Kevin

[warrenm]

A Muncie with M22z ratio, Fuchs TO4-10 & It'll "flat shift"

[greens nice]

yes jason it's been running on avgas lately, but i will be switching back to meth soon.

i ran meth on 10.5:1 comp and it made a huge difference.

[warrenm]

what octane rating is the avgas?

Avgas should be 100 octane minimum.

[N/A-PWR]

Yep,

and Air Force AVG Gas is 112 Octane last I seen, which makes your Carby/s go Green. Dave I