[SfValley335i]

Heres my stock 335 dyno on a Dynapack.

As we know Dynapacks read high... I just think my wtq is pretty high compared to other stock 335 dynos. I got my Xede today, I'll be installing it and doing another dyno run in 2 weeks.


- stock 335
- 6AT
- 91 oct.

[Pele96]

Originally Posted by SfValley335i

Heres my stock 335 dyno on a Dynapack.

As we know Dynapacks read high... I just think my wtq is pretty high compared to other stock 335 dynos. I got my Xede today, I'll be installing it and doing another dyno run in 2 weeks.


- stock 335
- 6AT
- 91 oct.

Nice numbers but I would do a run on a dynojet

[radgator1]

Actually if you look at the curve and the results you can see that 338 is not on a part of the curve that can be read, it is a blip at the point where the run started being recorded and drops straigt down. You can see that your HP also drops straight down at that point whcih shows that it is an artifact. Also it is not at the right RPM's since we know where 335i's make peak torque. If you look my curve or Jon's or really anyone elses you will see stock you should be making peak torque around 3400 RPM's and around 3200 RPM with an ECU mod.

So it looks from the curve your peak torque was around 325 ft-lb @ 3400 RPM's which is still very good since as I said before you can subtract 20 ft-lbs from a Dynapack to get an estimate of a Dynojet result which would put you just over 300 ft-lb on a dynojet. That is still a very strong number for a 6AT on 91 Octane

[RiXst3r]

its at 2800 rpm... I wouldnt call it a blip, I would call it should have got more data... peak tq comes in below 2k rpms sometimes

[CASHBY]

you should do dyno on a dynojet stock and then with Xede.... dynopacks and we have all heard this and you said it... read high...but at least youll know how much more your putting down.

Just dont get to excited with the high numbers...get excited about the gains from stock to Xede.

Good luck brotha!

[WilyB]

I wonder why people say Dynapacks “read high” ? Dynapack reads at the hub, so they do not have to deal with rim/tire losses.

Saying Dynapacks “read high” sounds to me saying that “at the crank dynos” (like at the factory) read high.

Dynapack™ attaches directly to the axle(s), thereby overcoming all the disadvantages of tyre distortion including noise, torque steer, loss of traction, tyre heat and design variations in the tyre.

[CASHBY]

but unfortunently it doesnt read at the crank and they are known by everyone that they read high..... i wish they didnt, its they just do.

[WilyB]

Originally Posted by CEA 3

but unfortunently it doesnt read at the crank and they are known by everyone that they read high..... i wish they didnt, its they just do.

Ok but they read "high" compared to other "at the hub" dynos?

My Ferrari mechanics swear by Dynapacks as the best dynamometer for tuners. They say they are very expensive but well worth it. If they were consistenly "high" people would have noticed by then and corrections would have been made. My understanding is that a set of two, for 2WD, cost like $90K.

[shocka1212]

hey guys. im not too familiar with the specs on the 335 with procede. but just to clarify something up, you guys are getting over 300hp and tq to the wheels or to the crank>?

[Terry335]

Dynos are great but how about some track times? I'm hitting Irwindale Thursday, why don't some of you join me!

[WilyB]

Originally Posted by Terry335

Dynos are great but how about some track times? I'm hitting Irwindale Thursday, why don't some of you join me!

I'd love too, but I am about 4,000 miles away.

[WilyB]

Originally Posted by shocka1212

hey guys. im not too familiar with the specs on the 335 with procede. but just to clarify something up, you guys are getting over 300hp and tq to the wheels or to the crank>?

I would say about 50/60+ RWHP and 90+ RWTQ. Add 12% for powertrain loss, and you get 56/68+ crank HP and 102+ crank TQ.

If you fancy higher powertrain loss, then you get highter crank numbers! For example, +15% would give 59/71+ HP and 106+ TQ at the crank.

[Terry335]

Originally Posted by WilyB

I'd love too, but I am about 4,000 miles away.

I meant for the local guys.

[SfValley335i]

Originally Posted by CEA 3

you should do dyno on a dynojet stock and then with Xede.... dynopacks and we have all heard this and you said it... read high...but at least youll know how much more your putting down.

Just dont get to excited with the high numbers...get excited about the gains from stock to Xede.

Good luck brotha!

I mainly got my car dyno'd at Church because of its low price. I could go there almost 3 times for the price of going to Harman (spelling). Yes dynopacks read high for whatever reason but I can just do -15 or -20whp/wtq simple as that. Other than the simple math, I can assume my motor is strong compared to other stock 335's. My stock torq is about 305wtq (on dynojet) when the avg. for stock 335's is around 280.

I hope to get over 400wtq without exhaust maybe with 93oct.

I'm looking forward to running into a 6AT procede 335.

[radgator1]

Originally Posted by RiXst3r

its at 2800 rpm... I wouldnt call it a blip, I would call it should have got more data... peak tq comes in below 2k rpms sometimes

No, its a blip. His HP falls straight down at the exact same point which is basically impossible at WOT at 2800 RPM. Look at it again, its an artifact, not a problem that the run wasn't recorded early enough.

[radgator1]

Originally Posted by CEA 3

but unfortunently it doesnt read at the crank and they are known by everyone that they read high..... i wish they didnt, its they just do.

CEA, its not that it really reads "high", or something to wish they did or didn't. Read what WilyB said again. They measure something different than a Dynojet. They measure power at the hub which of course is higher than the power getting to your tire surface measured by a Dynojet but it doesn't make it less accurate. In fact it is closer to measuring crank power and it removes all the different wheel/tire/suspension variables and differences we have between all our cars.