View Full Version : Dyno-ed the Dinan 5 this weekend
///M3CosmosJoe
03-28-2005, 01:19 PM
Recently purchased a 98 540i sport. The car has 65k now and all the Dinan parts for S1 or S2, not sure. CAI, AFM, TB, Stage III software and exhaust, plus the Y-resonator replaced with a Magnaflow. We did 2 runs in 4th and 1 in 5th (which went to 155mph :eek: ). The car did 264whp/292wtq consistantly in 4th and 266whp/298wtq in 5th. I was pleased the car was so consistant after each run without any cool down.
Anyway, I thought I'd post my results. I think the car can do 320 crank hp with some minor changes, but I'm happy overall.
i thought dyno pulls were done in 3rd?
Speedfreak
03-28-2005, 02:37 PM
I thought dyno runs were done in the gear that was 1 to 1.
///M3CosmosJoe
03-28-2005, 02:47 PM
It is a 6-speed so they recommended 5th for the heck of it. Which they did mention was 1 to 1. :dunno
540i6sport
03-28-2005, 06:36 PM
Recently purchased a 98 540i sport. The car has 65k now and all the Dinan parts for S1 or S2, not sure. CAI, AFM, TB, Stage III software and exhaust, plus the Y-resonator replaced with a Magnaflow. We did 2 runs in 4th and 1 in 5th (which went to 155mph :eek: ). The car did 264whp/292wtq consistantly in 4th and 266whp/298wtq in 5th. I was pleased the car was so consistant after each run without any cool down.
Anyway, I thought I'd post my results. I think the car can do 320 crank hp with some minor changes, but I'm happy overall.
My 97 540 sport has 320 torque as stock. I would have thought that the Dinan S1 thru 3 would have a more favorable return. I guess not.
Sounds like it's riding very nicely though. Congrats.
///M3CosmosJoe
03-28-2005, 07:30 PM
My 97 540 sport has 320 torque as stock. I would have thought that the Dinan S1 thru 3 would have a more favorable return. I guess not.
Sounds like it's riding very nicely though. Congrats.
298 tq is to the ground. That would be 360-ish tq at crank by your math. Just a little higher than your 320 stock. :confused
Skipper5
03-28-2005, 07:32 PM
My 97 540 sport has 320 torque as stock. I would have thought that the Dinan S1 thru 3 would have a more favorable return. I guess not.
Sounds like it's riding very nicely though. Congrats.
i know you meant to say your 540 has 310 torque as stock. i am correct in this assumption, right?
E34nication
03-29-2005, 09:23 AM
i thought dyno pulls were done in 3rd?
on a 5-speed yes. typically runs are done in 4th on a 6-speed.
cleoent
03-29-2005, 02:30 PM
that sucks man, it seems you aren't one of the lucky ones that had an underrated 4.4 from the factory :( THere are stock 97-98's making that much HP. Still good numbers though :)
ASCH MAN
03-29-2005, 02:39 PM
You may want to run some additional tests on your engine. Here is a link to a 97 540-6 at our last dyno day and the only mod was an BFP intake. 281HP and 305TQ
http://forums.bimmerforums.com/forum/showpost.php?p=3088813&postcount=43
Your numbers just seem a bit low?
///M3CosmosJoe
03-29-2005, 03:11 PM
Could a bad fuel pump cause these lower numbers? My fuel pump is going out and I am beginning to wonder it is related. The e39 is new to me, so I am looking to get it back on track. Spent the last 3 years building up an M3, so the V8 is new and the mods are very different.
ASCH MAN
03-29-2005, 03:23 PM
Could a bad fuel pump cause these lower numbers? My fuel pump is going out and I am beginning to wonder it is related. The e39 is new to me, so I am looking to get it back on track. Spent the last 3 years building up an M3, so the V8 is new and the mods are very different.
Can you scan your dyno graphs? I actually took a picture of mine with a digital camera and it was good enough to post. That may be telling as well. What about maintenance, have you done any recently? When were the plugs or fuel filter last changed? What about cleaning the air filter?
///M3CosmosJoe
03-29-2005, 03:29 PM
Can you scan your dyno graphs? I actually took a picture of mine with a digital camera and it was good enough to post. That may be telling as well. What about maintenance, have you done any recently? When were the plugs or fuel filter last changed? What about cleaning the air filter?
The car needs an inspection II now. The fuel filter has not been changed, I did replace the plugs with NGKs a week before the dyno. I think that the air filter and fuel filter may help out. I can request a soft copy of the chart. Maybe you guys can help my car run a little better.
cleoent
03-29-2005, 03:32 PM
wait, what kind of dyno?
///M3CosmosJoe
03-29-2005, 03:48 PM
wait, what kind of dyno?
DynoJet? Not sure.
MaloventEvil
03-29-2005, 03:56 PM
where was it dyno'd? dynospot?
wait, what kind of dyno?
good question since mustang dyno, on average, shows higher HP then dynojets.
BTW, what was the temerature and how high above sea level?
cleoent
03-29-2005, 10:35 PM
good question since mustang dyno, on average, shows higher HP then dynojets.
BTW, what was the temerature and how high above sea level?
Duh.. that's why i asked :laugh :stickoutt
jimmyz2
03-30-2005, 12:32 AM
good question since mustang dyno, on average, shows higher HP then dynojets.
I think it is the other way around.
///M3CosmosJoe
03-30-2005, 10:20 AM
Temp was 70-75 and the dyno is a mustang dyno. I am not sure if the numbers are that low or not. According to Dinan, my numbers are about where they should be for a given 540i6 with my mods. 310 is exactly what their site states for my mods as well. What kind of numbers are you guys expecting? Are you refering to a better build? I thought that only really mattered with M cars since they are mostly hand built. To the best of my knowledge, there is nothing real special about our E39s unless they are an M. Build doesn't seem to matter, maybe I am wrong. What kind of numbers are you guys putting down or do you know?
E34nication
03-30-2005, 10:22 AM
i thought mustang dynos were supposed to be on the highside not the dynojets?
cleoent
03-30-2005, 11:06 AM
I think it is the other way around.
i concur
cleoent
03-30-2005, 11:07 AM
Temp was 70-75 and the dyno is a mustang dyno. I am not sure if the numbers are that low or not. According to Dinan, my numbers are about where they should be for a given 540i6 with my mods. 310 is exactly what their site states for my mods as well. What kind of numbers are you guys expecting? Are you refering to a better build? I thought that only really mattered with M cars since they are mostly hand built. To the best of my knowledge, there is nothing real special about our E39s unless they are an M. Build doesn't seem to matter, maybe I am wrong. What kind of numbers are you guys putting down or do you know?
Your numbers could be a bit low cuz of the mustang dyno. 97-98 were largely known to have been underrated from the factory. From the factory they are rated at 282 hp, stock 97-98's (No vanos) have been known to put down 260 stock...
i concur
i conceed. :D
brain fart when i wrote that.
///M3CosmosJoe
03-30-2005, 12:56 PM
I scheduled an inspection II and overall check of my 540, which needs to be done anyway. Once we are done with that, we will run another Dyno and see what changes, if anything.
Thanks for all your help, I like this section of the board more than the old M3 board I use to be a part of. Seems to be more mature in this camp. :D
96cosmosM3
03-30-2005, 04:34 PM
The numbers look right to me. How about you guys that say its low post your numbers?
cleoent
03-30-2005, 04:36 PM
The numbers look right to me. How about you guys that say its low post your numbers?
Instead of being a jackass why dont you realize most of us are trying to help the guy. Like i've said (and like you can get off your lazy ass and research) most 97-98's put that down stock.
have a new (to me) 2000 323i...
looking to add a little punch and read about dinan (et al)...
ran some numbers, and question if it is worth the money...
took the numbers from bmw book, and the dinan web-site, then excel'ed it...
2000 323i, Stock, CAI, Software, Both,% change
HP, 170, 11, 6, 187, 10
Torque,181,9, 7, 197, 8.556
Curb wieight,3153
Weight/HP,18.54705882,17.4198895,na,16.86096257
Weight/Trq,17.4198895,16.59473684,na,16.00507614
hmmmmm. the formatting would not work...oh, well...
any thoughts?? inquiring minds wanna know....
would you even feel the diff?, and is it worth it?
JAlfredPrufrock
03-31-2005, 12:36 AM
The people that are saying this car with mods dyno'ed low have NO basis for comparison.
If there was a stock '98 540i6 on the same dyno on the same day pulling consistant or higher numbers, I would probably be worried. Comparing dynos of different e39 540i cars on different days on different dynos is pretty pointless though, too many variables to really conclude anything except maybe a basic accepted range of output.
The Beastmaster
04-03-2005, 12:42 AM
Dyno'd Barney today and my numbers sucked ass! My best runs was 243 hp/258 tq. :mad It was a very frugal dyno as a stock S54 M Coupe dyno'd at 258 hp and a E46 M3 with $5k of Dinan goodies dyno's at 246 hp.
FYI. My '97 540 has Dinan intake, exhaust, s/w for engine and tranny, plus other Dinan stuff.
jimmyz2
04-03-2005, 12:57 AM
Dyno'd Barney today and my numbers sucked ass! My best runs was 243 hp/258 tq. :mad It was a very frugal dyno as a stock S54 M Coupe dyno'd at 258 hp and a E46 M3 with $5k of Dinan goodies dyno's at 246 hp.
FYI. My '97 540 has Dinan intake, exhaust, s/w for engine and tranny, plus other Dinan stuff.
PM me for real performance mods that produce real world hp increases.And don't listen to your 'other brethren'. :D :devillook
The Beastmaster
04-03-2005, 01:01 AM
It doesn't REALLY bother me as my car had all that stuff installed when I bought it from the dealer. The P.O. paid about $10k for all that plus the 3.15 lsd on the car, including installation. :eek:
Cacatfish
04-03-2005, 01:32 AM
Mustang dynos dyno a bit lower than Dynojets. I wouldnt worry about it at all....264whp on a Mustang would be around 290whp on a dynojet (or so).
Also, 265whp (dynojet) is not really the norm for the 540i's, just the strong end of the range. I have seen just as many dynoing around 245.
jimmyz2
04-03-2005, 01:42 AM
Now that I see you have a abundance of Dinan products,I have to say you have the best CONSERVATIVE company.In other words,you have history/proven products that are not the most aggressive tuning.But,Dinan(as much as I can't stand thier ego) is so damn relaible.I would take lower h.p.#'s any day over ,'my deck is bigger than yours'.
96cosmosM3
04-03-2005, 01:49 AM
Instead of being a jackass why dont you realize most of us are trying to help the guy. Like i've said (and like you can get off your lazy ass and research) most 97-98's put that down stock.
Help him how? There is nothing wrong his car or his numbers. If your car put that kind of numbers down stock, then congrats, you got a strong car. Lets see your dyno graph.
The Beastmaster
04-03-2005, 01:58 AM
Mustang dynos dyno a bit lower than Dynojets. I wouldnt worry about it at all....264whp on a Mustang would be around 290whp on a dynojet (or so).
Also, 265whp (dynojet) is not really the norm for the 540i's, just the strong end of the range. I have seen just as many dynoing around 245.
Aww shit! It was on a Dynojet! :(
Powered by vBulletin® Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.