[RedUn]

Looking forward to the alta results roland

[MINI-Morgan]

Wish I knew how they all compared to the Promini kit I useto run.

[St00ge]

Quote: Originally Posted by RedUn

Looking forward to the alta results roland

haha me too, i have an Alta CAI....anyone wanna swap me for a GTT CRI?

[St00ge]

Quote: Originally Posted by Jaffa Racer

Good work Roland, now I know why with just the GTT CAI it feels like she goes better.. because she does. Really 10 BHP per psi

i dunno about 10bhp per psi......

if i put a 17% pulley on my car, and run 17psi of boost consequently, does that mean i'll have over 50bhp extra? i doubt it....even with my CAI and MTH tuner.

[roland2003]

Hi Etalj,No what we are saying is on a high boost car (which will be demanding alot of air ) one psi extra ENTERING the SC can give UPTO 10bhp more at around 7000rpm compared to stock filter system.. You wont get the same on a stock car, nor will you get the same by going one psi more by 'going a bit smaller on the SC pulley', and unfortunately you dont get 10 bhp 'per psi'. (now that would be nice) Its all to do with improving volumetric efficiency .
Regards Roland GTT.
Our early tests gave 9bhp improvement on the rollers compared to our GTT 210 kit. As you know RR measurements are a little bit 'variable' even with the best will/operator/equipment in the world. A pressure and vacuum guages act as a' mobile real life conditions' flow bench. In other words a very valuable measuring & tuning device.
Best Regards Roland GT Tuning

[roland2003]

Hi Guys, still looking for an MCS with Alta air filter on it to complete the comparisons.
Needs to be fitted with -17% pulley as used on GTT conversions , (or say a -14% JCW with a +3% GTT crank pulley)
Hooking everything up & testing will take under an hour. You can even sit in the car during the test if you like and see the vacuum guage (make sure we are not cheating too )
-£20 GTT voucher thankyou reward included!
Regards Roland GTT

[Haggi]

a question for rowland regarding cooper air box mods ?

as im sure you are aware the cooper air box inlet has 2 resinator chambers on the pipe i know mini mania have already done a new air box but do not sell the pipe seperatley im considering a few mods to the stock air box (10mm hole in the bottom of the box and k&n high flow filter) what would you say the merits of these were over a 57i induction kit which is my other option

[roland2003]

Hi JWF. Thanks for the enquiry TBH I havnt spent enough time on 'non S' air filter configurations to advise specifically
. K&N elements are good quality, often 57i kits are alot more £ for an 'extra bit' you could do yourself (eg Renault 5GT kit). Holes that draw in hot air from the engine are generally not a good idea. You need cold air and lots of it.
Regards Roland GTT

[Haggi]

Quote: Originally Posted by roland2003

Hi JWF. Thanks for the enquiry TBH I havnt spent enough time on 'non S' air filter configurations to advise specifically
. K&N elements are good quality, often 57i kits are alot more £ for an 'extra bit' you could do yourself (eg Renault 5GT kit). Holes that draw in hot air from the engine are generally not a good idea. You need cold air and lots of it.
Regards Roland GTT

thanks i know it sounds odd but theres a theroy among us cooper owners that the air benth the box is cool due to its location the hot air comes from the side and a small hole aids the iduction as well as being and emergency drain im going to run a few experiments next week

also one futher question how often should the filter elements be repaced

[roland2003]

You can replicate the tests we are doing on the MCS's to see if you realy are removing any restriction. You need an accurate vacuum guage ,connected after the airfilter&before the TB. Use WOT in say third gear then take the reading at say 6000rpm. Then compare to stock. This realy is the best way to best in effect 'a real life actual conditions flow bench'
Even the effects of air entering the grilles and scuttle area are 'real life' .
Regards Roland GTT

[Haggi]

Quote: Originally Posted by roland2003

You can replicate the tests we are doing on the MCS's to see if you realy are removing any restriction. You need an accurate vacuum guage ,connected after the airfilter&before the TB. Use WOT in say third gear then take the reading at say 6000rpm. Then compare to stock. This realy is the best way to best in effect 'a real life actual conditions flow bench'
Even the effects of air entering the grilles and scuttle area are 'real life' .
Regards Roland GTT

Ive got a mate who dose motorsport engineering where I'm at uni so will see what gizmo's he has i think he will have all the necessary as he can use it as part of his research as well and will post the results back here

[MINI-Morgan]

The holes in the bottom is a mod back from the old Nova days. Its considered that the air in the lower engine bay is cooler due to hot air rising and there isnt usually anything hot underneath it. Its worthwhile if you go through many fords though as a drainage hole.

[wibbly]

Quote: Originally Posted by Mini-Morgan

Wish I knew how they all compared to the Promini kit I useto run.

I kinda miss my Promini

In some ways I think its better than my 10hp upgrade that I paid £450 quid for

[MINI-Morgan]

Quote: Originally Posted by wibbly

I kinda miss my Promini

In some ways I think its better than my 10hp upgrade that I paid £450 quid for

What did you go for?? I put the promini one half way through a mini run.... then booted it out on to the dual carriageway and it made soooo much difference.

And that sound mmmm

[wibbly]

Quote: Originally Posted by Mini-Morgan

What did you go for?? I put the promini one half way through a mini run.... then booted it out on to the dual carriageway and it made soooo much difference.

And that sound mmmm

Works upgrade....

I swear I got back in the car after the upgrade and thought nice sound when the second flap opens but what extra power and looked over at the BMP sat in the passenger footwell where it had been dumped when they took it off

[MINI-Morgan]

Quote: Originally Posted by wibbly

Works upgrade....

I swear I got back in the car after the upgrade and thought nice sound when the second flap opens but what extra power and looked over at the BMP sat in the passenger footwell where it had been dumped when they took it off

I dont think there's too much in it really.

[MickCooperS]

Hey Roland, What gain can i expect on a stock Cooper S with the GTT CAI ?

[St00ge]

Quote: Originally Posted by roland2003

Hi Etalj,No what we are saying is on a high boost car (which will be demanding alot of air ) one psi extra ENTERING the SC can give UPTO 10bhp more at around 7000rpm compared to stock filter system..

aha, i misread, my bad Thanks for that Roland...

[dmh]

Roland-
How come your box does not have a top? I track my car and am concerned with the sealing capabilities since the engine does sway quite a bit.
Thank you,
Don

[Jaffa Racer]

the GTT CAI seals against the bonnet

HTH
Kev...