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It looks right, you will need to measure the sensor and crosscheck it with the hole size they list..
Yes im See what you mean im on
Rs246.com and asking about what ID the MAF Is....If the maf is the wrong size the fueling will be out.....
The we Need is the RS4 (B5)
2.7 V6 30v biturbo - 380bhp
Rs246.com and asking about what ID the MAF Is....If the maf is the wrong size the fueling will be out.....
The we Need is the RS4 (B5)
2.7 V6 30v biturbo - 380bhp
This Would work wouldnt it..
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260848848655#ht_3986wt_1270
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260848848655#ht_3986wt_1270
Just Had a email of the Guy and he told me :
Greetings,
the ID is 82.55mm and yes we do ship to the UK $19.95 Priority post. Housing in stock and ready to ship. thanks for your interest.
Cheers!
Thats the size i need aint it...takes the Bosch sensor too..
Who confirmed it needs to be a RS4 MAF?
"If" its written for a 69mm MAF (LCR) then you need a 74mm (S4) MAF to run 630's.
Unless someone wants to doubt my calculations.
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It needs to be an rs4 (ish lol) size maf so the scaling is correct for the map he will be using.
I am considering doing the same, but I will be making a custom tube to the scaling is spot on.
I am considering doing the same, but I will be making a custom tube to the scaling is spot on.
Edited above.
My calcs:
630cc is 14.5% bigger than 550cc.
Total area of 69mm maf (LCR) is 3739.765mm²
Make that 14.5% bigger then work it backwards and it'll give you rougly 73.8mm aka S4 MAF.
Even if you added 14.5% to 69mm you're still no where near RS4 MAF.
Unless im wrong.
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14.5% difference is correct
69mm maf area = 3739.28mm2
x 1.145 = 4281.47mm2/pie then sq route = 36.91R
There for 73.833mm ID is needed
Spot on! (thats assuming the lcr is 69mm ID)
69mm maf area = 3739.28mm2
x 1.145 = 4281.47mm2/pie then sq route = 36.91R
There for 73.833mm ID is needed
Spot on! (thats assuming the lcr is 69mm ID)
LCR is 69mm yeah.
I know i keep banging on about this its just ive gone through this hard work and its a nightmare. I just want to make sure you got the right setup.
I keep saying you need to find out what size MAF with 550's its written for.
Ignore me if you want, but dont come back on here asking for help when youre fuel trims are **** and its running like crap if you got the base MAF size wrong and scaled it from there.
I know i keep banging on about this its just ive gone through this hard work and its a nightmare. I just want to make sure you got the right setup.
I keep saying you need to find out what size MAF with 550's its written for.
Ignore me if you want, but dont come back on here asking for help when youre fuel trims are **** and its running like crap if you got the base MAF size wrong and scaled it from there.
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Im all ears Dude you know me always open to Advice and Ideas 
keep them coming phill.
James Have you sorted this with Phil on ''Why'' We use a RS4 MAF which is 83mm ID..
Im going of the advice and guidance of Alex and ive sourced a RS4 Maf so il wait to confirm on this..
keep them coming phill.James Have you sorted this with Phil on ''Why'' We use a RS4 MAF which is 83mm ID..
Im going of the advice and guidance of Alex and ive sourced a RS4 Maf so il wait to confirm on this..
The figures prove that an S4 maf would be more suited.. unless I am completely missing something. I will get you a definite answer tomorrow if you give me a text to remind me mate
Woo I was waiting for you to arive Alex.
I dont doubt that it works.. its just the scaling between 550/lcr and 630/rs4 doesnt match..
Am I missing something?
I dont doubt that it works.. its just the scaling between 550/lcr and 630/rs4 doesnt match..
Am I missing something?
