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Author Manifold 4 - 2 -1 or 4-1
JM_16v
Member
Registered: 17th Oct 05
Location: Essex Drives: GLC63S
User status: Offline
29th Apr 08 at 12:38   View User's Profile U2U Member Reply With Quote
which is better and why?

looking at a raceland 4-2-1 and a janspeed 4-1
joes_1.4_16v_sport
Member
Registered: 15th Mar 07
Location: Preston, LANCS
User status: Offline
29th Apr 08 at 12:43   View User's Profile U2U Member Reply With Quote
Ive got a heat rapped janspeed 4.2.1.

Bob on it is...



4-2-1 = give more torque across 2.5k - 6k

4-1 = top end speed increases i think...
Superlite Ltd.
Member
Registered: 9th Jan 07
User status: Offline
29th Apr 08 at 13:35   View User's Profile U2U Member Reply With Quote
I had a 4-1 and tbh car felt faster without it

4-2-1 is the way to go really
Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
29th Apr 08 at 15:34   View User's Profile U2U Member Reply With Quote
is there a 4-2-1 manifold availible without the sai grooves and hole in it thou,,
GT190
Member
Registered: 6th Dec 07
Location: Greater London
User status: Offline
29th Apr 08 at 15:42   View User's Profile U2U Member Reply With Quote
always heard good things about 4-2-1
Nick-S
Member
Registered: 3rd Mar 04
Location: Leigh. Drives: RS Megane 230 F1 Team R26
User status: Offline
29th Apr 08 at 16:23   View User's Profile U2U Member Reply With Quote
dint dave A prove there was no real diffrence

id av thought 4,2,1 would be best
Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
User status: Offline
29th Apr 08 at 16:53   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by GSi_16v
Didn't Dave A prove there was no real diffrence


I think he did........

4-2-1 if your car is low

4-1 if you car is low then you'll flatten the bottom of it

Thats about it
JM_16v
Member
Registered: 17th Oct 05
Location: Essex Drives: GLC63S
User status: Offline
29th Apr 08 at 17:01   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Adam-D
is there a 4-2-1 manifold availible without the sai grooves and hole in it thou,,

?
http://www.kam-racing.com/product_info.php/cPath/82_153/products_id/127?osCsid=d301b21f9f8f3f1697f058039fc6ec23
Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
29th Apr 08 at 18:17   View User's Profile U2U Member Reply With Quote
http://www.corsasport.co.uk/board/viewthread.php?tid=388563
Jenko_Sport
Member
Registered: 25th May 06
Location: Stoke-on-Trent
User status: Offline
29th Apr 08 at 18:19   View User's Profile U2U Member Reply With Quote
Raceland for your gti

 
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