broster
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Registered: 6th Dec 02
Location: Drives: E39
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basically whats the best kit
48mm tapered or 42mm straight bore bodies ?
whats the diff between the two kits?
http://www.jenvey.co.uk/corsakit.htm this is where im getting the info from, need to know whats best, i have kent fast road cams, head work(flowed ported polish whatever) and a supersprint 4-2-1 etc! hopefully be running omex management, just waiting for some1 to get back to me on it, any advice please!
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Joff
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Registered: 17th Oct 00
Location: Cambridgeshire
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Copy the setups that Andy or Miles use.
X16XE has loads more room before you get to the bulkhead 
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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yes as it was made for the corsa, not an astra! or a cav
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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dont one set come out parralell from the head th eother come out at and angle pointing upwards, i think ya need tapered
48mm too big also for a 1.6
[Edited on 08-11-2004 by Greasemonkey]
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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think i need more than that i need to know asap!!!! lol!
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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Miles has 40mm parallel jenvey Tb's with 90mm trumpets
[Edited on 08-11-2004 by Greasemonkey]
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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quote:
Originally posted by Greasemonkey
Miles has 40mm parallel jenvey Tb's with 90mm trumpets
[Edited on 08-11-2004 by Greasemonkey]
ok ill look them up cheers man
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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Andy Hamilton has 42mm tapered TB's
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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pahhhh so much confusion! ANDY, MILES help!
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Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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are they only £ 866.00 or did i read that wrong
Opel/VX 1.6L + taper SFs CKVX02 £ 866.00
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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866 + vat then ull need the management
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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40mm is plenty big enough, as said its what I used. If I were to do it again I would use them again. You'll lose torque if they are too big.
The torque curve is meant to be different between parallels and tapers, have a look at the given graphs on the sbd site, or do a search on mig as I remember someone imposing them on each other.
I think it was basically along the lines that you might get slightly more power from the tapers if they are set up properly, although they are harder to set up properly and cost more.
What do you get for £866? The bodies on there own cost about £450?
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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I am good 
http://www.migweb.co.uk/forums/showthread.php?t=61329&highlight=tapered+throttle+bodies
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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cheers miles, for the 886 you get:
Developed in partnership with SBD Motorsport Ltd. A kit is available which contains the manifold, a set of four 48mm tapered throttle bodies, four air horns, fuel rail, plus all bolts, clips, O-rings and washers required.
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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I also ran 40mm parallels on a 1.4 16v corsa. you need the nagled inlet manifold. and 40mm trumpets. the 40's are more than enough, you loose torue, but more importantly throttle response is blunter.
the difference between tapers and parallel is you get more midrange torque (suposedly) but the top end is the same. they do take longer to set up, and cost more.
heres a pic of the inlet I use on mine.
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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so whats the general out come then, the car will be used everyday! 40mm?? they say 42 on the jenvey site? pahhhh im confused now
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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Is that the inlet from Rob James?
Same one as I used.
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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I think the tapers are 48mm at the mouth, 42mm at the inlet manifold....
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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confused now lol, what shall i go for? needs to be good for everyday driving
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bradfincham
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Registered: 20th Sep 02
Location: East Of England Drives: Clio 172
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best thing is to ring the manufacturer ring sbd as there are the kings, built dads engine a few years back aor jenvey and see what they have to say tell them your application and see what they recommend
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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good plan!!!
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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IT does slightly depend on what power you'll run, but rule of thumb is 40mm are good for 190-200BHP. Tapers are 45mm butterfly, 48 at opening and 42mm at manifold. SBD will tell you to get the tapers. But they really don't make anymore power than the parallels. they para's are cheaper and still fit.
The most important thing is that you should use the smallest size you can get away with, it's not like carbs where's there's the choke aswell.
Plus with para's you have better esale value as they fit any DCOE type manifold so it open to a wider interest.
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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quote:
Originally posted by j1400
IT does slightly depend on what power you'll run, but rule of thumb is 40mm are good for 190-200BHP. Tapers are 45mm butterfly, 48 at opening and 42mm at manifold. SBD will tell you to get the tapers. But they really don't make anymore power than the parallels. they para's are cheaper and still fit.
The most important thing is that you should use the smallest size you can get away with, it's not like carbs where's there's the choke aswell.
Plus with para's you have better esale value as they fit any DCOE type manifold so it open to a wider interest.
so 40mm parallels are the ideal one for my car, aiming for 190-200bhp in the end.
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sigibbons
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Registered: 10th Feb 04
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So how much is managment roughly?
And is that it to buy? How are they set up? Rolling road?
Thanks
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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quote:
Originally posted by sigibbons
So how much is managment roughly?
And is that it to buy? How are they set up? Rolling road?
Thanks
from 300-500ish for a mapping session, and the management is about 500-600ish? can get a cheap one that you make your self but id rather have one that works. they are set up on a rolling road and the car is mapped that way
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