Now 126 BHP at back wheel!!

Hi there,
As promised here's the results of my trip to see Richard at Dynojet HQ for a re map on the old 08 motor.
When Richard started it was 118BHP at the rear wheel with 68lbs of torque - Now its 126 BHP at the rear wheel with 74lbs of torque.
But the big issue was the air fuel ratio which was way too rich between 3500 - 6000.....about 15% too rich!!!! which explains the numbness and rough running while trying to hold a steady throttle at town riding speeds.
The bike rode as sweet as a nut back home.....great stuff.
Richard thinks the 08 Aprilia map has changed quite a bit from the original he tested in 2006...so hes going to contact Aprilia to get the correct code for an 08 bike so he can then marry up the map from my bike to the latest one which he will then post on the Dynojet website.

is that 126bhp using a power comander?

Mine comes out at 142 at the crak and 130 at the rear wheel..

tis interesting wot you say about the fueling .. as on my dyno run we needed to increase the amount of gas going in, between 5 and 6k, by 25% to get rid of the HOOOOGE hole in the power curve. now i have one that goes staight up :thumbup

Hi Thor, can you tell me whereabouts Dynojet HQ is situated? Presumably that's with a PM/

woohoo! :doug

-:banana

It's is very difficult to compare dyno figures unless you have the bikes on the same dyno, on the same day. There are soooo many variables. My 05 showed about 112 in it's original stock trim, then 118 with an Akra slip on, Evo airbox and a PCIII fitted, and finally 122 with the 2+2 Akras (on the same dyno). Last year it was dyno'd on a different m/c and came out at 128, 6 more hp for nothing or just different dyno's? I know which I believe.

The only number worth looking at is the difference between before & after - you gained 8 bhp and I bet it's more rideable, which is actually the idea.

I know lads who use Southern Cross always get really big numbers - 131 for a Tuoldo with a few mods a year or so back - but in a straight line no different to my bike at ~122.

there are some peeps that 'Tweak' their dynos to give big numbers, is kind of a con cos they are trying to say that their tuning is better..
I used Dave Woods racing... he won the KTM Super Duck cup his year, sos he do kow a bit about tuning bikes...
As Paul says you will get different figures depending on a lot of things ..air density is a big factor... on cold crisp dry morning .. FOOOK!!! she do fly :lol

Mogster said:

..air density is a big factor... on cold crisp dry morning .. FOOOK!!! she do fly :lol

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conversley at 2100m up the Alps this year it was a wheezy and unfit as me..:bawling

Hi there streetbike.......and others.
Web site details for dynojet ;-www.dynojet.co.uk.
This is the head office, but as the guys mention in the threads there are loads of authorised dealers dotted about the UK....the secret is as Mogster says find one ya trust.
Just for info it looks like the 08 Tunos have a slightly different mapping in the ECU cos they are still trying to perfect the programme in mine.
Things have clearly changed in the ECU because the mixture readings my bike was showing are very different to Mogsters....mine was too rich his was too weak (his bike that is!!)
Once things get sorted I will let you know that the maps ready to be down loaded from the dynojet web site.
And yes to those who commented its not all about power its about rideability and smoothness.... any power/torque increases are a bonus and a bi-product of the engine fuelling itself more efficiently and effectively.....on any given day depending on temp air density and barometric pressure.
Cheers
BHT

My 05 showed about 112 in it's original stock trim, then 118 with an Akra slip on, Evo airbox and a PCIII fitted, and finally 122 with the 2+2 Akras (on the same dyno).

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So big assumption makes for easy math. :dunno
$2,000 (low!) for the mods = $200 per HP gained. :crazy
Just saying.

Yep, air temp can make a big difference. I was at a dyno day with two T's, both had custom fuel maps, airbox mods and exhaust systems. One dyno'd at 113, the other at 114. It was about 103 deg F in the dyno room thoughuke A duc 998 on hand with termis read 115 and the best N/A liter bike was a GSXR 1k which managed 157hp (it wasn't stock). My TLS was 116.

The other thing is that it don't matter how much peak HP you have if there is hole the size of the grand canyon in the mid range, which is where we spend most of our time.
I think this is where the link pipe mod or 2/2 systems and a PC111 USB come in to there own.
Along with different approaches to air box modification.
:cheers

VFR4Lee said:

So big assumption makes for easy math. :dunno
$2,000 (low!) for the mods = $200 per HP gained. :crazy
Just saying.

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The Slip on cost me £200, which I recouped when I resold it, and the 2+2 setup was £400 (not £1600) the Airbox was about £120, and the dyno sessions about £100 each, the PCIII was £140 istr. Total cost was actually more like £800.

Peak power may only be up 10hp, but mid range power - say at 5k is up about 25hp, and part throttle power output was up around 25%. The results are a bike that is much smoother and easier to ride. On track I can get on the gas hard out of corners much earlier than I ever could because it's predictable. On the road it makes 6th gear usable rather than "overdrive."

When I sell the bike most of the parts will fetch pretty much what I paid for them, so I will only (eventually) be out of pocket be say £300.

It's not really about the money. I LIKE my Tuoldo, if I wanted to do it easy, I would just ride my wife's 07 Tunuo, which makes the same kind of power stock.