Unit20 RS6 Upgrades

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
RS6-4dr911
1st Gear
Posts: 55
Joined: Sun Jan 25, 2009 12:34 am
Location: Houston, TX, USA

Post by RS6-4dr911 » Fri Dec 18, 2009 4:31 am

TIMSRS wrote:Hi. In your mods you had fitted a pair of ITG air filters. Are they the cone type or direct replacement in the filter boxes. Do they have a noticeable gain in performance and noise. Cheers
I posted a while back that I installed a set of the direct replacement ITG's, ran some before and after runs with VAGCOM connected and feel certain I documented a roughly 15-20hp gain. Not a big percentage, but noticeable indeed, sounds just slightly better, can almost hear the turbos spooling now.

philroach
4th Gear
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Location: coulsdon ,surrey

Post by philroach » Fri Dec 18, 2009 7:41 am

how can you document BHP with Vagcom ??
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sonny
Cruising
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Joined: Wed Nov 14, 2007 1:30 am
Location: Kent

Post by sonny » Fri Dec 18, 2009 10:23 am

el_ringo wrote:20p a mile just on the rubber :P
That is a positive way of looking at it lol

New mods sound great fella, bet she goes now, when you having her on the rollers?
Money can't buy you love, but it can buy you a well sorted racecar

RS6-4dr911
1st Gear
Posts: 55
Joined: Sun Jan 25, 2009 12:34 am
Location: Houston, TX, USA

Post by RS6-4dr911 » Fri Dec 18, 2009 5:07 pm

philroach wrote:how can you document BHP with Vagcom ??
VERY unscientifically. Maybe someone with better formulas for acceleration vs. HP can assist. But at the margin of minor increases in power I'm probably close.

I simply compared the rate of RPM gain (RPM/sec) across the powerband (roughly 3500-5000 rpm) and the average of the after runs was roughly (can't pull up my logs right now) 5% greater than the before average. Therefore, roughly 5% more power.

RS6-4dr911
1st Gear
Posts: 55
Joined: Sun Jan 25, 2009 12:34 am
Location: Houston, TX, USA

Post by RS6-4dr911 » Fri Dec 18, 2009 11:48 pm

RS6-4dr911 wrote:
philroach wrote:how can you document BHP with Vagcom ??
VERY unscientifically. Maybe someone with better formulas for acceleration vs. HP can assist. But at the margin of minor increases in power I'm probably close.

I simply compared the rate of RPM gain (RPM/sec) across the powerband (roughly 3500-5000 rpm) and the average of the after runs was roughly (can't pull up my logs right now) 5% greater than the before average. Therefore, roughly 5% more power.
Using this (http://www.060calculator.com/) shows that its a pretty close guess. Try the RS6 info, it calculates 4.6 0-60, to get 5% off that time takes about 6% more power.

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