Stroker for au six..4.8litres!!

[ayeyew]

Originally Posted by HLC

make up your mind :

what happened to car audio plans or the SC install : :

Well, the SC kit bloody changes day to day, so i have scrapped that! I won't be getting the money which i was planning on using for the audio install for another couple of weeks, so i have pretty much written that off seeing as I am back at work now.

I am so indecisive, in a couple weeks i will have $10-12k to spend + whatever my AU can get me when sold and was speaking to a mate and he suggested the XR6T instead of heavily modding my car. Did abit of research and saw that XR6T's can now be gotten for low 20's! I was like WTF, cuz i thought they were WAY out of my budget. So saving up for another couple of months i will be able to get an XR6T.. But, I bet my mind will change 50x before i actually do something!

But now that this stroker is into the equation.. I am once again.. unsure. It will come down to all the reports and specs and of course.. Pricing

[crusher]

We were talking about these awhile ago in a thread in the 6cyl section.

If I had the money as soon as Joe had the AU block done and ready for selling id snap one up right away. Either the N/A version or the lowered comp version.

Either way itll be a ball tearer of an engine and will scare alot of the holden and ford boys. Be a good option for younger blokes (IE under 25 like me) as we wont really have as much insurance hassle like youd get with a turbo or something.

Can't wait to see some dyno figures and track times. Good times ahead for the 6cyl brigade.

[StealthAu]

Originally Posted by ayeyew

Well, the SC kit bloody changes day to day, so i have scrapped that! I won't be getting the money which i was planning on using for the audio install for another couple of weeks, so i have pretty much written that off seeing as I am back at work now.

I am so indecisive, in a couple weeks i will have $10-12k to spend + whatever my AU can get me when sold and was speaking to a mate and he suggested the XR6T instead of heavily modding my car. Did abit of research and saw that XR6T's can now be gotten for low 20's! I was like WTF, cuz i thought they were WAY out of my budget. So saving up for another couple of months i will be able to get an XR6T.. But, I bet my mind will change 50x before i actually do something!

But now that this stroker is into the equation.. I am once again.. unsure. It will come down to all the reports and specs and of course.. Pricing

These blocks will also be available for B-series by the looks of it, so if an XR6T is waht you want, this can still be an option.

[aye you]

/pulls out wallet........

[ayeyew]

Originally Posted by aye you

/pulls out wallet........

more like

/pulls out loan

Originally Posted by stockoau

These blocks will also be available for B-series by the looks of it, so if an XR6T is waht you want, this can still be an option.

I reckon i'd only be able to afford one or the other, prolly not both. But we'll see how it all goes in the coming months

[InfernoSR]

Originally Posted by ayeyew

more like
pulls out loan

I hear you there... still gotta save up around $5k for the paint job first...

[Mechan1k]

Originally Posted by Dark Horse

Off topic comments aside, correct me if I'm wrong but one of the trial cars with the I6 stroker kit running out of Crescent Motorsport is an EF Fairmont?

If you are thinking it is Jase's Fairmont ... nup.
It's actually running in an older vehicle actually ... and has been ticking along quite nicely from what I have heard. It is used on a daily basis delivering items around Sydney.

[private9]

Originally Posted by ayeyew

I am so indecisive, in a couple weeks i will have $10-12k to spend + whatever my AU can get me when sold and was speaking to a mate and he suggested the XR6T instead of heavily modding my car. Did abit of research and saw that XR6T's can now be gotten for low 20's! I was like WTF, cuz i thought they were WAY out of my budget. So saving up for another couple of months i will be able to get an XR6T.. But, I bet my mind will change 50x before i actually do something!

But now that this stroker is into the equation.. I am once again.. unsure. It will come down to all the reports and specs and of course.. Pricing

While I'm not a BA fan at all, if I was personally tossing up between modding my AU or grabbing an XR6T within the same budget, I'd go the XR6T without question. - Legal, great potential, and you get all the other XR/BA niceties thrown in for free.

[JoesAu]

Originally Posted by ayeyew

Well, the SC kit bloody changes day to day, so i have scrapped that! I won't be getting the money which i was planning on using for the audio install for another couple of weeks, so i have pretty much written that off seeing as I am back at work now.

I am so indecisive, in a couple weeks i will have $10-12k to spend + whatever my AU can get me when sold and was speaking to a mate and he suggested the XR6T instead of heavily modding my car. Did abit of research and saw that XR6T's can now be gotten for low 20's! I was like WTF, cuz i thought they were WAY out of my budget. So saving up for another couple of months i will be able to get an XR6T.. But, I bet my mind will change 50x before i actually do something!

But now that this stroker is into the equation.. I am once again.. unsure. It will come down to all the reports and specs and of course.. Pricing

+ 3500 grand for insurance every year for a P plater, reason why i havent got one yet

[ayeyew]

Originally Posted by JoesAu

+ 3500 grand for insurance every year for a P plater, reason why i havent got one yet

The thing is.. I have a fiancee who turns 30 in April
:

3500 grand!! That's like $3.5million :

[The Mighty Red]

40 cubes ....

[InfernoSR]

Any latest news on this?

[Mr Hardware]

I do know that there were 5.0 six cylinder fords in usa so why not?

Mate of mine has a '73 F-Truck with a 300 cube straight 6 - he says thats pretty well the last of them with the small truck motor rather than a car motor.
Hell, most diseasel 6-cyls for trucks and buses have huge litreage.
JC is right. The fords get their torque from their long stroke, and if the long stroke is unchanged then the torque is not going to be monster. Expect 430nm at the fly i'd say.

[Mechan1k]

Originally Posted by BLUEPRINT

Any latest news on this?

Joe is flat out busy at the moment though.

Last I heard though is that the ute it is running in (X-series) has been going better and better after it has been run in ... hasn't seen the rollers yet .. it's just getting road time for now and getting some mileage put on it.

[blueoval]

Im wet with anticipation of this news.

My mate uses his EF monty for towing on a daily basis and was thinking about trading up for a V8. This is an excellent alternative for him.

I foresee some pretty shagged diffs with this new application too.

I reckon it's an awesome alternative, and you could avoid hefty insurance bills as said.

Bring it on.

[InfernoSR]

Originally Posted by Mechan1k

Joe is flat out busy at the moment though.

Last I heard though is that the ute it is running in (X-series) has been going better and better after it has been run in ... hasn't seen the rollers yet .. it's just getting road time for now and getting some mileage put on it.

Cheers mate... just wondering

[mickyyyy]

From the fordmods forum joe is looking to find an affordable rod which both suits NA and turbo application and the engines are in still in testing stages as he wanted to test the engine is summer weather which we didnt get much of.

So i think its best to wait so he can do all the testing as you would want the engine to be reliable.

It's hard to say how much it would cost for the stroker engine but say rebuilding a 4.0L with ACL race series kit and reco head your looking at $2500.00 not ballanced and blueprinted.

So i would say the stroker engine would cast about $4500.00 with a little head work

[sly]

It ain't a stroker FFS.

[HLC]

Originally Posted by sly

It ain't a stroker FFS.

then what is it?

[Orbit]

whats more intresting is if this can be applied to the Bseries F6....

[StealthAu]

Originally Posted by HLC

then what is it?

The blocks are bored and resleeved. Stroke is left unchanged.

For those of you thinking it will not produce more torque then stock, quite simply you are wrong. Increasing the capacity of the engine will increase torque, if this increase was made via increasing the stroke rather then the bore it would have a lot more torque. A 4L with shorter stroke and larger bore then what we have would produce less torque and rev harder, but if you leave the stroke as is and increase the bore size it will increase torque.
Problem is people read articles about things they have no idea on and then become experts, in such articles when they were mentioning difference between square and over square engines all was in reference to if they were of the same capacity not if they shared the same stroke.

[HLC]

ooooh ok now i get it. i knew engines with a shorter stroke would rev harder and produce less torque than an engine of the same capacity but with a longer stroke.... but that is about it lol

[sly]

Sorry I was a bit terse earlier... I just assumed that most males having reached the stage where stubble takes over from bumfluff would innately understand the difference between "stroking" and "boring", most having experienced both by then, usually in that order. :

Now that that's settled, I reckon Mr Hardware would be right on the money. 4.8 / 4.0 = 1.2 and as that comes all from increased bore the torque increase should be approximately proportional. So 357Nm * 1.2 = 428.4 or approx 430Nm, as long as valve size doesn't restrict flow enough to upset volumetric efficiency.

The only downside of a big rebore like this, that I can see, is that the head casting will most likely restrict what can be done with valve sizes, possibly restricting top-end power in NA applications. But I'm sure Joe would have anticipated this. It'll be interesting to see if it was an issue and how much Joe was able to do to overcome it.

[Qwikcorty]

Originally Posted by HLC

ooooh ok now i get it. i knew engines with a shorter stroke would rev harder and produce less torque than an engine of the same capacity but with a longer stroke.... but that is about it lol

it would more likely produce similar torque but at a higher rpm.

[Mechan1k]

Originally Posted by Orbit

whats more intresting is if this can be applied to the Bseries F6....

He has a B-series engine he has been playing with as well.

[Orbit]

NOw there is an intresting prospect.

[Tradewind]

I dunno, I've seen plenty stroker Holden engines from 3.8 - 4.3 and they go from 160 rwhp to about 210rwhp for like $5000 ......... it costs a lot, plenty work involved and you are left wanting, a petrol motor with not much top end turns out to be not that much fun. Would make a good taxi engine, bulk low end squirt then slowly run out.

Interesting but would need to be pressure fed like Sly suggested to be exciting

[sly]

I think Joe is targeting around 200RWKW, maybe 270RWHP??? with the right cam and head combo. I wasn't suggesting it would lack excitement, more that it would be a natural complement to a centri blower... take 200RWKW, add 50-70%, and go scare some HSV's!

I always get a laugh from the ad in Parts Trader for one of those Commo 4.2 V6's, the "COME stroker" of course LOL.

[InfernoSR]

Originally Posted by sly

I always get a laugh from the ad in Parts Trader for one of those Commo 4.2 V6's, the "COME stroker" of course LOL.

Filthy filthy mind... :

Now i have only read this thread to get information, and i was under the impression it was a new block and head package we weretalking about, not a rebuild...

[sly]

The description on Fordmods seemed like a rebuild to me... boring out existing blocks into the water jacket then fitting wet sleeves... and a ported head of course.