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dangerous100 
Groupie
Joined: 25-June-2004
Location: sheffield
Status: Offline
Points: 88
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 Topic: Dyno Runs
Posted: 04-December-2005 at 11:53 |
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i would say you would have more power than shown as fourth gear uses
less cogs and shafts than any other gear so the transmission losses
would be less.
&nbs p; bryan
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93 540ia,superchip,k+n panel filter and nitrous.118000miles
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 04-December-2005 at 06:58 |
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So in effect this lowers or increases the overall power measured ? Generaly speaking of course ?
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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dangerous100
Groupie
Joined: 25-June-2004
Location: sheffield
Status: Offline
Points: 88
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Posted: 03-December-2005 at 13:24 |
tried running mine up in third as fourth is so long but it just span the wheels straight into the limiter  .that was without gas thank god.
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93 540ia,superchip,k+n panel filter and nitrous.118000miles
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 02-December-2005 at 17:06 |
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to measure power the engine has to be in the same rpm as the gearbox (drivetrain) which is 1:1 and this only happens in 4th gear
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jayson@chippeduk.com
www.chippeduk.com
07815-501867 - 01527-579345
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 16:59 |
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What difference would this really make Jayson ?? TIA
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 02-December-2005 at 13:20 |
he did the runs in the wrong gear mate.
your car needs to be done in 4th as this is the 1:1 drive.
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jayson@chippeduk.com
www.chippeduk.com
07815-501867 - 01527-579345
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 12:18 |
Dissregard that LOL, 147 ft/lbs + 24.7% = 183.309 ft/;bs of torque, so yer I see your points. 
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 12:15 |
definately wrong labels on the graph! ???
I added the BHP and Torque labels if thats what you mean ?
If your refering to the torque, well if its NM it works out 130 ish ft/lbs of torque, and if its already ft/lbs on the graph its still down by some 40ft/lbs ??? Thats the biggest no brainer for me anyways.
Run was done in 3rd gear Jayson.
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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sleeper
Really Senior Member II
Original and STILL best
Joined: 26-March-2004
Location: East Sussex/Kent border
Status: Offline
Points: 2098
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Posted: 02-December-2005 at 09:19 |
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!!!! don't sound so put out jay!!!
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 02-December-2005 at 08:57 |
i have to agree with sleeper.
what gear did they do the run in ?
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jayson@chippeduk.com
www.chippeduk.com
07815-501867 - 01527-579345
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sleeper
Really Senior Member II
Original and STILL best
Joined: 26-March-2004
Location: East Sussex/Kent border
Status: Offline
Points: 2098
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Posted: 02-December-2005 at 08:08 |
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definately wrong labels on the graph!
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 08:07 |
Well its still fitted atm, did over a 100miles yesterday runnin around, see what gives when I take it back for the next RR session.
Have you any ideas where I could be losing the Torque Jayson ~? Im a long way off the std even without the BBTB and K+N etc....even further away with those fitted !
Just FYI, I have new Lambda, new MAF, both brand new genuine Bosche parts............cost a fortune lol.....
Looking at getting the fuel filter replaced and fuel pressure regulator checked before I got back with these manifolds on etc.
Cheers
Mark.
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 02-December-2005 at 07:39 |
this isnt enough with the throttle body though.
in reality 200-400 miles is needed for the carbon to build a seal ring round the joint to the manifold from the throttle body so the air flows smoothly.
it is not common for cars fitted with a bored throttle body to actually lose power just after being done.
but give it time and it will reap rewards i guarantee you.
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jayson@chippeduk.com
www.chippeduk.com
07815-501867 - 01527-579345
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 07:36 |
No worries Jayson, its going back next week for more runs after we have fitted the manifolds etc this weekend. I reset the ECU and gave it the 10min burn in time btw......
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 02-December-2005 at 07:34 |
in this case the results wont be worth much as you never gave the ecu even a tenth of the time it needed to adapt to the extra flow of the throttle body.
You need at least 50 miles for the ecu to adapt to the extra air intake.
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jayson@chippeduk.com
www.chippeduk.com
07815-501867 - 01527-579345
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 07:29 |
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yup, first runs then a 30min break while I changed to the BBTB and K+N etc..........
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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chippeduk
Really Senior Member II
ECU Tech
Joined: 04-June-2004
Location: United Kingdom
Status: Offline
Points: 696
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Posted: 02-December-2005 at 07:27 |
were these all done on the same day ?
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jayson@chippeduk.com
www.chippeduk.com
07815-501867 - 01527-579345
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sleeper
Really Senior Member II
Original and STILL best
Joined: 26-March-2004
Location: East Sussex/Kent border
Status: Offline
Points: 2098
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Posted: 02-December-2005 at 07:25 |
are you sure that's NM?
it has got to be lb/ft. You should have 181lb/ft as standard.
Edited by sleeper
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 07:22 |
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To me the car feels a little flat below the 4500 mark with the BBTB and K+N fitted, and doesnt exactly feel like it pulls any harder afterwards either to be honest, which is why I wanted these power runs. When you look at the graphs without the BBTB and K+N you can easily see although it doesnt peak so high on BHP the torque is better low down, the curve is much more consistant and it doesnt drop off so quickly, in effect and IMHO making the car better for torque and power throughout the whole rev range.
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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Phantom_Mark
Senior Member II
Joined: 21-September-2004
Location: Lincoln UK
Status: Offline
Points: 194
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Posted: 02-December-2005 at 07:19 |
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btw, we only did the one run with the std filter back in, he only charged me for 2 of the 7 runs we did in total !
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<<<<< The only way is up >>>>
( unless your in a 5 series, then sideways is cool too )
91' 525 24v Sport, Stainless Race Manifolds, PowerFlo Stainless + Decat, Big Bore Throttle Body, Viper 2 Chip + 17's, std BMW Air Filter :D
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Dyno Runs
