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| ford-racer46 |
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{USERNAME} wrote: {USERNAME} wrote: {USERNAME} wrote: ....does it sammy?? I was gonna change springs because i thought there was better options, and i guess ill change the rest either instead or aswell people say crow double springs are better all round!! Double springs don't fit on Au heads without considerable machining. AU's run progressive rate beehive springs whilst E series run straight linear springs. And be careful cause you don't want to over-spring your valve train. Yes it is better to go stiffer than softer but you don't want to go overkill, cause essentially you will over "kill" your valve train. If I was you I'd ask wade themselves for any recommendations. Having said that I have a spreadsheet I knocked up a few years ago which determines the correct valve spring stiffness for any given cam on a sidevalve engine. If you can give me some specs on your rocker geometry (mass, end to centre distances, mass moment of inertia of your rocker) as well as your valve spring stiffness for a range of lifts as well as the mass of the valve spring, and finally a lift plot of your cam (lobe lift in 2.5 degree increments) then I could modify it for OHV applications. Atomic Performance do double valve springs for the AU head with out having to do any machining, they are $370 for the set Is there an advantage?
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| GeZza200 |
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{USERNAME} wrote: {USERNAME} wrote: {USERNAME} wrote: {USERNAME} wrote: ....does it sammy?? I was gonna change springs because i thought there was better options, and i guess ill change the rest either instead or aswell people say crow double springs are better all round!! Double springs don't fit on Au heads without considerable machining. AU's run progressive rate beehive springs whilst E series run straight linear springs. And be careful cause you don't want to over-spring your valve train. Yes it is better to go stiffer than softer but you don't want to go overkill, cause essentially you will over "kill" your valve train. If I was you I'd ask wade themselves for any recommendations. Having said that I have a spreadsheet I knocked up a few years ago which determines the correct valve spring stiffness for any given cam on a sidevalve engine. If you can give me some specs on your rocker geometry (mass, end to centre distances, mass moment of inertia of your rocker) as well as your valve spring stiffness for a range of lifts as well as the mass of the valve spring, and finally a lift plot of your cam (lobe lift in 2.5 degree increments) then I could modify it for OHV applications. Atomic Performance do double valve springs for the AU head with out having to do any machining, they are $370 for the set Is there an advantage? Machining can cost alot because you have to take the head off, you will be able to put the springs in without having to take the head off, which will save alot of money.
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| krisisdog |
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370s pretty much a reco head though
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| phillyc |
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{USERNAME} wrote: {USERNAME} wrote: Like I said racer, beware the interwebbs there's a lot of s**t floating around. Any way because of this i get mislead, so i ask questions like this, im not a mechanic! im learning but im not one, i just wanna do my car up the best i can so i search here for answers with people i trust, it worked out because if i didnt ask i would have wasted $180+ on double valve springs...  A shop here also said if i changed my springs it would give me more power, i explaind my cam(they never heard of wade) i read out my specs, i told them about my car, i also said Wade recomended standards valve springs are ok, and they disagreed and said get some crap i never heard of, it will give my car more power they recon!!... For that workshop to have never heard of Wade cams is amazing. The original founder of Wade cams actually designed the camshafts for Sir Jack Brabham's early F1 cars. You can get more power from a stiffer spring, but that is only if the spring it is replacing isn't sitting on the seat correctly. Particularly at higher rpm or under boost conditons. ie very old and worn. There are good reasons why manufacturers and aftermakrets have moved onto beehive springs. Lower unspung mass, reduced harmonic issues, progressive rate changes are just a few. The only limitation for our AU beehive seem to be the maximum lift being restricted to 0.512" or thereabouts as suggested by Wade cams. |
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| ford-racer46 |
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{USERNAME} wrote: {USERNAME} wrote: {USERNAME} wrote: Like I said racer, beware the interwebbs there's a lot of s**t floating around. Any way because of this i get mislead, so i ask questions like this, im not a mechanic! im learning but im not one, i just wanna do my car up the best i can so i search here for answers with people i trust, it worked out because if i didnt ask i would have wasted $180+ on double valve springs... A shop here also said if i changed my springs it would give me more power, i explaind my cam(they never heard of wade) i read out my specs, i told them about my car, i also said Wade recomended standards valve springs are ok, and they disagreed and said get some crap i never heard of, it will give my car more power they recon!!... For that workshop to have never heard of Wade cams is amazing. The original founder of Wade cams actually designed the camshafts for Sir Jack Brabham's early F1 cars. You can get more power from a stiffer spring, but that is only if the spring it is replacing isn't sitting on the seat correctly. Particularly at higher rpm or under boost conditons. ie very old and worn. There are good reasons why manufacturers and aftermakrets have moved onto beehive springs. Lower unspung mass, reduced harmonic issues, progressive rate changes are just a few. The only limitation for our AU beehive seem to be the maximum lift being restricted to 0.512" or thereabouts as suggested by Wade cams. Ok guys, ill just leave until the head gets worked!! do it all at once with the cam specs and mesured correctly, who do i contact for head work? is it an engineer?
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| xcabbi |
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{USERNAME} wrote: Atomic Performance do double valve springs for the AU head with out having to do any machining, they are $370 for the set All I can make out on their price list is the following: 306810-kit H/D V/Spring kit AU SOHC Ford, $368.50 Item description: H/Duty silicon-chrome Dual valesprings and matched re (and then it runs out of text) And here is the item for the equivalent EL motor: 306811-kit H/D V/Spring kit EL SOHC 6 $379.50 Item description: H/Duty silicone-chrome Dual valvesprings retainers and c (and then it runs out of text) |
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| ford-racer46 |
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{USERNAME} wrote: {USERNAME} wrote: Atomic Performance do double valve springs for the AU head with out having to do any machining, they are $370 for the set All I can make out on their price list is the following: 306810-kit H/D V/Spring kit AU SOHC Ford, $368.50 Item description: H/Duty silicon-chrome Dual valesprings and matched re (and then it runs out of text) And here is the item for the equivalent EL motor: 306811-kit H/D V/Spring kit EL SOHC 6 $379.50 Item description: H/Duty silicone-chrome Dual valvesprings retainers and c (and then it runs out of text) Ive been looking for ages on the net for a price on porting and shaving, cant find nothing, and every shop here all say, sorry mate we send away "were" i say....ring ring "ok later bud" they say
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| phillyc |
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{USERNAME} wrote: Ive been looking for ages on the net for a price on porting and shaving, cant find nothing, and every shop here all say, sorry mate we send away "were" i say....ring ring "ok later bud" they say Hoppers heads advertise in Street Ford magazine. Another good place for information along with Budget Build Street Fords.http://www.hoppersheads.com.au/pkits.htm How hard are you looking? Just Yellow Pages - Adelaide - Head reconditioning = 18 responses. http://www.mclarenengineering.com.au/services.html Those guys look alright?! Performance Valve seat machining (3 angle cuts etc), Porting, Performance engine builds etc. |
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| ford-racer46 |
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{USERNAME} wrote: {USERNAME} wrote: Ive been looking for ages on the net for a price on porting and shaving, cant find nothing, and every shop here all say, sorry mate we send away "were" i say....ring ring "ok later bud" they say Hoppers heads advertise in Street Ford magazine. Another good place for information along with Budget Build Street Fords.http://www.hoppersheads.com.au/pkits.htm How hard are you looking? Just Yellow Pages - Adelaide - Head reconditioning = 18 responses. http://www.mclarenengineering.com.au/services.html Those guys look alright?! Performance Valve seat machining (3 angle cuts etc), Porting, Performance engine builds etc. Awsome ill be ringen them tomorrow but so i dont get my pants pulled down over the price, whats a good one!!
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| GeZza200 |
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{USERNAME} wrote: {USERNAME} wrote: Atomic Performance do double valve springs for the AU head with out having to do any machining, they are $370 for the set All I can make out on their price list is the following: 306810-kit H/D V/Spring kit AU SOHC Ford, $368.50 Item description: H/Duty silicon-chrome Dual valesprings and matched re (and then it runs out of text) And here is the item for the equivalent EL motor: 306811-kit H/D V/Spring kit EL SOHC 6 $379.50 Item description: H/Duty silicone-chrome Dual valvesprings retainers and c (and then it runs out of text) I sent them an email about the springs a little while ago here was the response. Hi Gerard, Yes they fit straight up without any machining or special seals, etc. We have a specially wound inner that fits on top of the factory spring boss and also fits our retainer, so operates with the correct tensions but with a reduced installed height. The #306810- kit is designed for the AU and are $368.50 for the lot - dual springs and chrome moly retainers. Freight in an airbag is $19.80 and the kits are in stock for immediate shipment. If you have any further questions, please don’t hesitate to call/email. Cheers, Brad
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| ford-racer46 |
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Then ya gotta put em hay, the requires more than back yard skill!! ME
 Im gonna go full head job, till i get it blown...OH no he didnt  lol nah i wanna get a spare AU head, then get it ported,oversize exhause valves, ect do i need reco and new springs for the job or will she hold as is(presuming it survives pressure and crack testing?)
_________________ Now, I've got a message for all the other drivers out there. If you smell a delicious, crispy smell after the race, it's not your tailpipe. It's just a little of Shake...and Bake! |
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| xcabbi |
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{USERNAME} wrote: {USERNAME} wrote: {USERNAME} wrote: Atomic Performance do double valve springs for the AU head with out having to do any machining, they are $370 for the set All I can make out on their price list is the following: 306810-kit H/D V/Spring kit AU SOHC Ford, $368.50 Item description: H/Duty silicon-chrome Dual valesprings and matched re (and then it runs out of text) And here is the item for the equivalent EL motor: 306811-kit H/D V/Spring kit EL SOHC 6 $379.50 Item description: H/Duty silicone-chrome Dual valvesprings retainers and c (and then it runs out of text) I sent them an email about the springs a little while ago here was the response. Hi Gerard, Yes they fit straight up without any machining or special seals, etc. We have a specially wound inner that fits on top of the factory spring boss and also fits our retainer, so operates with the correct tensions but with a reduced installed height. The #306810- kit is designed for the AU and are $368.50 for the lot - dual springs and chrome moly retainers. Freight in an airbag is $19.80 and the kits are in stock for immediate shipment. If you have any further questions, please don’t hesitate to call/email. Cheers, Brad That's the best news I've heard in a while. i wonder what sort of lift figures and boost pressures these puppies are rated at. The only reason why people running big HP forced induction motors went to E series heads on AU bottom ends is because of a lack of decent valve spring for the AU. This now allows the use of the better AU head if you want to port it. For comparisons between EF and AU heads have a look here ford-4l-and-6-cylinder-f1/possible-head-porting-docco-coming-soon-t86312.html?hilit=head%20porting%20docco I'm sorry for the slow progress but I'm short on both time and money. Hopefully in the not too distant future I'll be in a position where i can build a budget bench to test these things. |
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| xhfalcon |
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i just got a 1645 AU cam in my au head and you do need the valve springs... it pushes the limit on the standard springs meant to be 50 thou clearance between coils at maximum lift but mine measured at something closer to 20 thou at least thats what the guy at the head shop told me
on another note you will not be disappointed with this cam its awesome
_________________ XH falcon, GT3582, tuned length manifold, turbosmart 48mm gate, 3inch stainless exhaust, Ported head, Custom grind surecam, turbosmart fpr800, deatch werks 300lph fuel pump, siemens 60lb injectors. Turbo smart vee port BOV. microtech lt10. |
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| TROYMAN |
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{USERNAME} wrote: i just got a 1645 AU cam in my au head and you do need the valve springs... it pushes the limit on the standard springs meant to be 50 thou clearance between coils at maximum lift but mine measured at something closer to 20 thou at least thats what the guy at the head shop told me on another note you will not be disappointed with this cam its awesome wade cams say no need for heavy springs!!! and im running the au1645 and have been reving it to 6000rpm with over 10 psi boost and no problems.... |
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| DormanAU |
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i think someone should listen to troyman....i think its generally agreed the man knows his stuff.
_________________ Au factory 5sp, rolling on 20'z, full custom extractors, redback cat and back. has a new motors, only 27,000ks |
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