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 Post subject: Au1
Posted: Mon Aug 15, 2016 10:53 pm 
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Age: 28

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Location: Yanco
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Hey Ford heads I'm new to this and was curious on anybody's opinion on my choice of upgrades and what I might snag into. I have au1 xr8 with the Chinese copy performer intake with a 75mm t/body, aluminum heads 62cc 190cc with 1.72 yella rocker kit,, a custom chip and tune will be up for the cards and if so any suggestions? Thanks
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 Post subject: Re: Au1
Posted: Tue Aug 16, 2016 4:12 pm 
Oompa Loompa
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Location: Boronia
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What brand heads are they mate.
What horsepower/killawasps are you chasing
Did you fit the manifold and throttle body.
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 Post subject: Re: Au1
Posted: Tue Aug 16, 2016 4:12 pm 
Oompa Loompa
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What brand heads are they mate.
What horsepower/killawasps are you chasing
Did you fit the manifold and throttle body.
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 Post subject: Re: Au1
Posted: Wed Aug 17, 2016 8:22 pm 
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Sbf aluminum 190cc 62cc and I'm chasing 220-250 rwkw. No I havnt fit the intake yet because I seen the made in China stamp and I didn't know if I should get something else, I was going to polish out the internals of it? Thanks for help
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 Post subject: Re: Au1
Posted: Wed Aug 17, 2016 10:00 pm 
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Clank69 wrote:
Hey Ford heads I'm new to this and was curious on anybody's opinion on my choice of upgrades and what I might snag into. I have au1 xr8 with the Chinese copy performer intake with a 75mm t/body, aluminum heads 62cc 190cc with 1.72 yella rocker kit,, a custom chip and tune will be up for the cards and if so any suggestions? Thanks


Your AU already has an Explorer intake so the chinese thing will be of no benefit. I'd be more inclined to port match the upper to the lower of the Explorer intake and match to the heads.
75mm t-body is too big unless you use a bigger cam and heads and even then probably of questionable benefit. It would be useable on a stroker engine though. 70mm is a large as you want to go on a mild 5.0L.
Straight off the bat, a 190cc inlet runner on a chinese head is a bit large for something that still has a std cam and rev range.
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 12:03 am 
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So go a 70mm tb, I should be right with those heads.Where would I look into getting the explorer intake ported and it wouldnt cost that much would it?
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 12:14 am 
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Clank69 wrote:
So go a 70mm tb, I should be right with those heads.Where would I look into getting the explorer intake ported and it wouldnt cost that much would it?


Yes a 70mm max. I don't know what heads you have but 190cc intake runners are too large for a stock cammed engine. You can port match the intake yourself. Getting someone to do it shouldn't cost much but I've never paid anyone to do it.
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 12:20 am 
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How hard is it to put a cam in yourself did you know,, just a mild cam or?
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 12:47 am 
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Ok I see you're looking for about 330hp. You would need to fully port and big valve the stock 40p heads (not cost effective)or better still go aftermarket but I can't recommend Chinese no name heads. It's engine out time for you. Cam shafts are easy to fit but you need all the components to go with.
A good combo that'll get you in that ballpark without giving up your low end torque would be; AFR 165 Renegade heads, Comp XE270 cam, port match stock intake and 70mm t-body. Pacemaker headers(not the big tube ones) and a min twin 2 1/4" exhaust. Tune it with a moates 1/4 horse.
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 10:47 am 
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Well I kinda already purchased the heads and yella rocker kit so there in the way,, send them back and start again mate or should I just get a cam kit and T/body, my exhaust is already high flow twin 2, 1/2 inch to the diff.
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 11:13 am 
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If you can send them back I would but if not youll have to use them I suppose. You'll need to check piston to valve clearance with the cam and those rockers. Plus you didn't say what valve sizes you have? You may have to cut the Pistons for clearance.
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 11:28 am 
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Um the heads I ordered were complete just with out rocker arms that's why I got evoke arms and not a full comp kit for it. But I'll have a look at these renegade heads and stuff first to see what I'm going to do.
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 11:43 am 
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I'm going send my heads back f**k that I don't want to stroke it, I'll get the renegade heads will I have to check clearances again with them heads,, I'll send me rockers back too I found a crow can kit with a set of rockers and a cam card with it and my t/b of course
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 5:13 pm 
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Thanks for your help mate its very handy! Cheers!
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 Post subject: Re: Au1
Posted: Thu Aug 18, 2016 9:43 pm 
Oompa Loompa
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Ride: Ef xr6

Location: Boronia
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We ran afr 165 heads on our eb race car for about 18 months these heads are really good, we were making 465 rwhp (other work done besides heads). These heads DO require modified valve reliefs on tbe piston tops, One other suggestion if i may is to upgrade the pushrods when you do cam and lifters, the factory ones become a weak link with high lift cams
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