1/4 mile track test aussiepeed Vs aussiespeed

[xrglen]

hi all, today was the ford Vs holden day at Kwinana motorplex and what a day it was..
i asked Brad with his 250 x-flow cortina which just ran 13.685@97.5mph earlier this year to do a back to back 1/4 mile test of the old and new aussiespeed 4bl inlet manifolds..
i asked Brad to run everything the same, tyres, timing, fuel, everything..
the manifold he used to run his 13.6 was the old aussiespeed inlet which has the thin runners , bigger oval ports, square plenum and spreadbore patern (like the old cain and redline inlets).. the new manifold which i only gave him today at the drags was the one i helped Mark from aussiespeed design early last year.. it has standard size ports, wider runners, angled plenum and squarebore patern.. just after Brad fitted it he said it idled better and felt crisper..no jetting, timing or other mods were done.. the first run he short shifted at 4500rpm not 5500rpm like he normally does and ran a 13.59.. then the next run he shifted at 5500rpm and ran a 13.303@100mph.. this is better than a .3 of a second from his car with no other changes or mods.. this is an excellent result and more so because it is a 6 cylinder.. years ago people were going nuts about active manifolds on holden 308 and 355s getting .2 of a second quicker but this is .3 from a 250 x-flow..
Brad was so happy with the inlet he ask if he could buy it there and then.. i said fine..
this works out to be a gain of 15rwhp from just the inlet change with no re-jetting which even impresses me and impressed Brad that much he went reaching for his wallet..
i would like to thank Brad for all his help with this test and hope he cracks the 12s soon....

[xrglen]

Brads old inlet which is the same as the old cain and redline manifolds..

[n00bus m@x1mus]

Holey crap, hats off to you guys.
There is nothing in the world that can prove that that new manifold cannot feed better than the older version now, no dyno readouts, no flow benches , nothing but real world proven back to back 1/4 mile times. well done.

And 0.3 of a second on a 13 second run is a huge improvement that i bet Brad had tryed every trick and spent every day trying to find and now its a simple bolt on process.
again well done

[n00bus m@x1mus]

Oh... and years ago those active manifolds on 308s and crap were shaving 0.2 off a 14 second pass and no where near as impressive as 0.3 off a 13 second pass

[xrglen]

thanks Noobus.. i cant sit behind a keyboard all day like some people here.. i get out there and test, design and develop... maybe some certain EFI lovers should stepup and try and design, make and test a simular product for the fuel injected drivers of this forum.. but there is keyboard power and horsepower and i know which one speaks louder...cheers

[xrglen]

i will add that this is Danials old motor which was on this site forsale a while back.. Mark tells me that it did have a cain inlet on it and when Danial fitted an old aussiespeed it picked up about 18hp with a 465 vac holley...
add this the the aprox 19hp that Brad has just picked up without a tune, it is near unbelievable..but the proof is at the track...cheers

[Stumper]

I asked this on another thread but would drilling injector bosses into these manifolds be a worthwhile project for someone (nudge, nudge, Noobus), I personally think it's a great idea, gives another option for the EFI fellas. I assume the aussiespeed will flow better than an Xseries EFI manifold, shorter runners in the aussiespeed compared to the EFI manifold and the like would improve the top end HP also.
Cheers

[xrglen]

I asked this on another thread but would drilling injector bosses into these manifolds be a worthwhile project for someone (nudge, nudge, Noobus), I personally think it's a great idea, gives another option for the EFI fellas. I assume the aussiespeed will flow better than an Xseries EFI manifold, shorter runners in the aussiespeed compared to the EFI manifold and the like would improve the top end HP also.
Cheers

hi, it would be possible.. now the design is working it could come sooner than later..

[xrglen]

update.. on his last run Brad has just run a 12.989@101.92mph.. his 60" time was a 1.827, air temp was 17.5 degrees and track temp was 21.3 degrees..
this is a remarkable time and the cool conditions proove that his carb needs to be re-tuned to suit normal ambient temps after the manifold change..
time slips will be listed tomorrow....cheers

[drew442]

thanks Noobus.. i cant sit behind a keyboard all day like some people here.. i get out there and test, design and develop... maybe some certain EFI lovers should stepup and try and design, make and test a simular product for the fuel injected drivers of this forum.. but there is keyboard power and horsepower and i know which one speaks louder...cheers

cold as ice!

[AussieSpeed]

I asked this on another thread but would drilling injector bosses into these manifolds be a worthwhile project for someone (nudge, nudge, Noobus), I personally think it's a great idea, gives another option for the EFI fellas. I assume the aussiespeed will flow better than an Xseries EFI manifold, shorter runners in the aussiespeed compared to the EFI manifold and the like would improve the top end HP also.
Cheers

Stumper the problem with the injector boss is the position. the ea on wards has a staggared bolt pattern & the injector can be put in the right position. i am still looking at the X type .. i am not in to just putting a injector pad there for the bling factor... see what happens i am looking at it.. Also thanks Brad for letting AussieSpeed use his car & Glen for all his efforts in helping prove that the Aussiespeed falcon manifold has more than a slight edge over our competitors. I dont think we can improve the manifold performance wise much more. thanks to all our supporters & the knockers can keep knocking but we have the runs on the board...

[XF Freak]

update.. on his last run Brad has just run a 12.989@101.92mph.. his 60" time was a 1.827, air temp was 17.5 degrees and track temp was 21.3 degrees..
this is a remarkable time and the cool conditions proove that his carb needs to be re-tuned to suit normal ambient temps after the manifold change..
time slips will be listed tomorrow....cheers

makes u wonder y others in other threads bag out aussiespeed products hey glen
keep up the good work
chees keith

[xfute]

yeah i was pretty impressed how much of a difference the aussiespeed manifold did hey we got some videos on the night of his corty racing brad will post it up later when he has time

[Stumper]

Stumper the problem with the injector boss is the position. the ea on wards has a staggared bolt pattern & the injector can be put in the right position. i am still looking at the X type .. i am not in to just putting a injector pad there for the bling factor... see what happens i am looking at it.. Also thanks Brad for letting AussieSpeed use his car & Glen for all his efforts in helping prove that the Aussiespeed falcon manifold has more than a slight edge over our competitors. I dont think we can improve the manifold performance wise much more. thanks to all our supporters & the knockers can keep knocking but we have the runs on the board...

Congrats to you guys for the success with your manifolds and to Brad for cracking a 12 that is a great time for a 250. It's a great time full stop.
About the injector positioning, is the stock X series injector position no good? I know it would mean a new casting to put injector pads onto your manifold but this casting could be used for both EFI and carby, you would just have to drill the pad if you want to use it for EFI. I don't understand the part about the manifold bolt pattern because there is already EFI being used with the exact same bolt pattern so why can't you replicate the same position? being that you promote your product for being more even in flow distribution to all cylinders which is all done before the port outlet I don't see any real drawbacks to the addition of the injector to the stock location, just my thoughts.
Cheers

[THE D]

What work has brads cortina engine had done to it? Thats an impressive time!!!

[xrglen]

What work has brads cortina engine had done to it? Thats an impressive time!!!

hi, it has a crow solid cam, ported E1 head, msd ignition etc..c-9 auto 3500 stall, pacemaker pipes.. it was for sale on this site late last year.. you might find the thread in a search...cheers

[Mikesxf]

well done xrglen, aussiespeed and of course brad, good results all round.

[Braddyxe51]

Hi Everyone thanks for comments. Ya I am very happy to crack that high 12. I didnt get to use slicks cos I didnt have any front runners. So still all on street tyres
Also may have prob in rocker area. After changing exhaust and packing car back up for trip home bad tapping noise and slight ehaust popping. So about to have a look.

Once do more carb tuning and slicks get down more in to 12s.

Cheers Brad

[Wes]

Glen, Aussiespeed, fantastic results!!!! Very exciting stuff I'm sure and puts confidence in the R&D, gives you conviction to go on and also gives xflowers a sense of relief the products are tried and tested.

Out of fairness to the forum members though, I don't recall a single person ever bagging Aussiespeed products.

[Braddyxe51]

Found problem. inlet rocker had come loose. so hope it hasnt damaged anything.

[Braddyxe51]

Here are the run sheets.

First one is the mani I had on


Next 4 are with mani Glen let me use.




If you want to see early runs before these dates, see my photo bucket

[cyco_250]

Well done Brad, pretty good 60' for street tyres can't wait to see how she goes with some sticky rubber!

[xde ute]

you must of been enjoying it the reaction times are getting better every time.
did you choose not to use the slicks or did they say no.

[xrglen]

you must of been enjoying it the reaction times are getting better every time.
did you choose not to use the slicks or did they say no.

hi, i asked Brad to keep everything the same as the last time he ran because we wanted to do a back to back comparison between the two manifolds.. i dont think he would have run better with slicks as he was not having any traction problems with the street tyres..(225/60/13 eagers.....cheers

[Stumper]

How much do you think the thicker cooler air had to do with times, the air pressure and temp compared to the times seem to corrospond. The manifold obviously made improvements but the conditions wern't the same. The first 2 time slip conditions are similar.