John G
Member
Registered: 18th Jul 05
Location: Wirral, Merseyside
User status: Offline
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Shit me that interior hurts my eyes
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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I think the hdr is underdone on them pics
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mattievRS
Member
Registered: 20th May 06
Location: Leicester
User status: Offline
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After seeing the front on pics it looks great with the bonnet vent silver, it matches the stripe on the bonnet. I enjoy reading threads like this as they're simple but to the point! Keep it up mate.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Seems fine today. Must have taken ecu a day or two to adapt or it just got hot sat in traffic
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Hiya, you ok?
My optimum bypass valve arrived today, the job of this is to control the boost levels so when your foot is off the throttle boost is vented so the car is basically driving like a n/a, all about fuel efficiency blah blah.
Anyway the problem with the stock one is firstly, its not adjusted very well, the butterfly doesn't close fully allowing pressure to escape even when fully closed, secondly for a car running more pressure, eg because of the smaller pully, the spring is too weak causing it to close too slowly or not enough. This also leads to a yoyo effect when driving part throttle.
Heres the new valve
Got to work, inctercooler back off
not too long after that the engine bay resembled a mess
Old valve attached to supercharger air horn
Here highlights the adjustment issues with the stock valve, you can see light through the edges
New valve closes fully
Fitted back to air horn
and reassembled everything. Took for a drive and it drives perfect now, no yoyo, and seems to pull nicer too.
To be honest I could have adjusted the old valve to shut fully, however I thought I may aswell just get the new already adjusted one, and it came with a better spring so why not as the price isn't extortionate 
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Seany
Member
Registered: 13th Dec 06
Location: Dunfermline, Fife : Drives Astra cdti Sri
User status: Offline
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How much is it steve? Mine does suffer a bit, not a great deal but enough to annoy me.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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70 quid from 1320
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AlexW
Member
Registered: 25th Oct 08
Location: Essex
User status: Offline
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I like reading your thread, but I have to keep zooming out loads to look at your pics without going into the next room.
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Norcy91
Member
Registered: 15th Sep 08
User status: Offline
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I definitely need to get saving for some parts for mine, Intercooler, brakes all round, service, bypass valve, 4-2-1 manifold and bypass valve aren't cheap! 
Any reason you didn't go for the 17% pulley seen as you got the Intercooler as well?
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Bit ott seeing as it's a work car too etc
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Norcy91
Member
Registered: 15th Sep 08
User status: Offline
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How did it feel to drive before you replaced the bypass valve?
They seem to be a common problem, but I wouldn't have a clue how to decide if mine needs replacing or not.
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Rich H
Member
Registered: 26th Oct 05
Location: West Sussex Drives: E46 M3
User status: Offline
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quote:
Originally posted by Norcy91
How did it feel to drive before you replaced the bypass valve?
They seem to be a common problem, but I wouldn't have a clue how to decide if mine needs replacing or not.
You'll know when it does! Car can kangaroo when accelerating etc
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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That and its worth replacing anyway because they ALL are not adjusted fully closed from the factory so you will be losing boost on wide open throttle.
You can just whip it off and adjust it yourself by turning the screw til its fully closed if you don't feel like spending money.
I have some updates. I messaged Dave F on the mini torque forum, but the fucking imbecile never replied, not sure who he thinks he is but I imagine because hes made a few air filters for a few people now thinks hes better than the internet.
Not to worry il make my own. Sorry this isn't as good as a Jed D type intake but you cant have everything.
Started out with a few bits and pieces, some of it I never used. That's a k and n X stream filter
A powerful ECU removed
from a powerful engine bay
Cut the drain pipe to correct angle and attached with some sikkaflex
Drilled a 2 inch hole in the other end of the airbox for the flexi adapter to fit
Then drilled a 2.5 inch hole in the bulkhead lining
For the other end of the flexi to fit (detached from airbox here)
The purpose of this is to allow more airflow into the airbox and drawing it right from under the vents below the windscreen
Made is extra strong with some fibreglass, will probably paint this black at some point but ran out of time
lol
Filter on
Then cut the seal off the paper filter and silconed it in place to create a seal
Need to let that sealant dry and fit tomorrow AM
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Norcy91
Member
Registered: 15th Sep 08
User status: Offline
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Looks like it should work well! How much have the parts cost you in total?
Dave usually has a thread up when he's making new batches of the airboxes. Looks like the last ones he did was in Feb! No doubt this will work just as well, should make the supercharger scream even more!
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SXI - Matt
Member
Registered: 8th Jul 07
Location: Leicestershire Drives: Corsa C SRI
User status: Offline
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I give you credit for just making your stuff when there not available. Seems good work manship to 
[Edited on 10-06-2013 by SXI - Matt]
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Thx.
Parts cost were about 70 quid including the air filter
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Norcy91
Member
Registered: 15th Sep 08
User status: Offline
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quote:
Originally posted by Steve
Thx.
Parts cost were about 70 quid including the air filter
Not bad at all! Think thats about half what i paid for my Dave F Airbox.
Wish i had enough money to buy all these parts you've been getting
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Phil W
Member
Registered: 1st Jul 05
Location: Shropshire Drives : Focus ST
User status: Offline
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£70 isn't bad, a friend of mine just won a DaveF on eBay for £140, he was going to have a bash at DIY though, he also tried to buy one from the man himself but had no response.
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3i_gaz
Member
Registered: 29th Nov 07
Location: Liverpool
User status: Offline
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amazeballs
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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ECU does look powerful  Very nice.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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I made a quick vid how the supercharger sounds since this airbox mod
http://www.youtube.com/watch?v=w0bS_CJInhY&hd=1
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Reply
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taylorboosh
Member
Registered: 3rd Apr 07
User status: Offline
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sounds cool but thats a lot slower than i expected
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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Have you fitted the SteveJW air filter yet?
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Are you taking the piss it was a sound Demo that was about 1/4 throttle
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