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Corsa Sport » Message Board » General Chat » 4-1 or 4-2-1 manifold + 60mm drop gsi wheels will it scrub? (edited)


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Author 4-1 or 4-2-1 manifold + 60mm drop gsi wheels will it scrub? (edited)
Haza2dap
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Registered: 25th May 11
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17th Oct 11 at 16:54   View User's Profile U2U Member Reply With Quote
Hey I don't really know much about manifolds, so what would be better for an x16xe? and any idea where you could get a 4-1?
standard gsi wheels with normal? tires on them 60mm drop at front am I going to be scrubbing around?
cheers

[Edited on 17-10-2011 by Haza2dap]

[Edited on 17-10-2011 by Haza2dap]
Corsa_Scotty
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17th Oct 11 at 16:55   View User's Profile U2U Member Reply With Quote
4-1's hang very low and often scrape on the ground 24/7 and generally dont give as much gains as a 4-2-1 iirc
Jed D
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17th Oct 11 at 16:55   View User's Profile U2U Member Reply With Quote
4.2.1 for performance and ground clearance

4.1 normally cheaper


4.1 on 15's with 60mm drop left me about 14mm ground clearance



it was shocking

[Edited on 17-10-2011 by JedDy]
shaunmods
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Registered: 12th Mar 07
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17th Oct 11 at 16:57   View Garage View User's Profile U2U Member Reply With Quote
4-2-1 will give more low down power, 4-1 will push it further up the rev range.

If you've got an powerbox inlet you will 100% want a 4-2-1 as the power band will end up going too high with a 4 branch.
Haza2dap
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17th Oct 11 at 16:57   View User's Profile U2U Member Reply With Quote
i see i see, and maybe a dumb question but isnt the standard manifold on an x16xe a 4-2-1 does it really make a difference getting say a sportex 4-2-1?
Haza2dap
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17th Oct 11 at 16:58   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by JedDy
4.2.1 for performance and ground clearance

4.1 normally cheaper


4.1 on 15's with 60mm drop left me about 14mm ground clearance


it was shocking

[Edited on 17-10-2011 by JedDy]

haha oh right

[Edited on 17-10-2011 by Haza2dap]
Jamie-C
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17th Oct 11 at 16:59   View User's Profile U2U Member Reply With Quote
4-1 is better higher up the rev range. 4-2-1 is better for lower down power
Jed D
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17th Oct 11 at 17:03   View User's Profile U2U Member Reply With Quote
without having a performance box i can honestly say i didnt notice much of a difference (if any) going from a standard to a 4.1
JaffaTB
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17th Oct 11 at 17:11   View User's Profile U2U Member Reply With Quote
i noticed a big difference on my 8v sri, did de-cat at the same time though
Jed D
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17th Oct 11 at 17:19   View User's Profile U2U Member Reply With Quote
mine was already de-catted like
Haza2dap
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17th Oct 11 at 17:21   View User's Profile U2U Member Reply With Quote
i see thanks for the help. anyone have an idea about the 60m drop + scrubbing?
Jed D
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17th Oct 11 at 17:34   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Haza2dap
i see thanks for the help. anyone have an idea about the 60m drop + scrubbing?


the pic i shown you above says it all mate lol, that was on 195/45/15 tyres and lowerd 60mm jamex full kit all round, the front sprins have been changed to 30mm drop (still looks lower than people would expect) but doesn't seem to scrape the deck much now unless parking on a curb or taking speed bumps like your in a landrover
Haza2dap
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17th Oct 11 at 17:45   View User's Profile U2U Member Reply With Quote
hah alright mate cheers for the help
Chris F
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Registered: 26th Dec 05
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17th Oct 11 at 22:01   View Garage View User's Profile U2U Member Reply With Quote
I put a hole in my old one haha
Crana
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17th Oct 11 at 22:03   View User's Profile U2U Member Reply With Quote
On my x14xe the 4-1 made it feel slower
Chris F
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17th Oct 11 at 22:33   View Garage View User's Profile U2U Member Reply With Quote
Sounds right, loose tourqe which the x14xe has less of anyway

 
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