Bramage

My dynojet numbers:
CF STD 10:22am 87.92 F 29.70 in-Hg Hum:31%
530.83 HP
592.30 TRQ

My torque numbers on the Dynojet have the same curve as on the DD except from 3000 - 3500 where I made my most torque on the DD. Operator said that is due to load bearing (DD) vs. Inertia (DJ) so I did not get what I expected there. Guy said tough ****

Sorry, those were 104 tune. 91 tune was
521.83 HP
568.16 TRQ

skratch77

Nice numbers bro and like I said 510-520 on a dynojet

Just ran 11.6 in 86 degree weather with full weigh and full spare in the trunk.

dgkalis

Can i get a pm of the price for the fuel rail and injectors installed with the new tune??

thanks.

360Jami333

thats awesum! congrats!

Bramage

Great time!!

Bramage

Does timing affect Boost in any way? I data logged the last 3 pulls that were made, (race tune) and the timing was where I expected it to be, and was not pulled, which tells me the ECU was happy with the timing, however boost never went over 11 on any of the 3 pulls. On the street, I see 13-14, and even 15. I wonder if due to the fact that this is an inertia roller vs; a load bearing unit, the ECU holds boost due to a lack of resistance. Anyone have any experience? I cant believe I made the power I did with 10.0lb boost.

Forrest Gump 9

Nice number Dane!! Hope it's good enough to improve your time at the next track event.

urbamworm

I don't have experience with the e55 as for a load bearing dyno vs inertia dyno or the road but with my Audi it makes no difference, the car runs the same boost if it is on a dyno dynamics, dyno jet or the road. How much timing is the car running that it is not pulling any? I guess the race gas has a lot to do with that (not pulling timing). What do you run like 4 or 5 degrees more on race gas compared to your 91 tune? I need to throw some race gas in one day and see what kind of difference it makes also when not pulling any timing it is pretty big in the midrange for my Audi.

Roverron

Any possibilities of a leak?

Bramage

Nope, data logged on my way home, and boost is there. Running awesome too.. I wish it wasn't 200 degrees out!

GT-ER

Nope. Timing and A/F ratio have no bearing. In a turbo engine, timing will only affect the turbo lag, but the maximum boost is still decided by mechanical means.

Things that CAN affect you boost are belt slip, altitude, air temperature, clogged air filters, or the ECU trying to bleed off boost for whatever reason.

Bramage

Agreed - the SC is mechanical, but the clutch and secondary throttle body under the SC can and do control boost. Our boost is progressive, and increases in higher gears. I have done a lot of data logging, and it seems that if you ease into an RPM (even redline) you will boost lower than if you are WOT from the start of the run. I think that is why the boost was where it was. Just a theory.

Here you can see how the ECU controls boost under WOT (1st, 2nd, 3rd)


Here is MAP when just starting slow and going WOT in a single gear. There is no progression.

Bramage

+5 degrees of timing with Race Gas Urbam. I didn't ask at the time, but that is what logging shows. Ill tell you what, I seem to like driving a lot more now. New power is fun..

GT-ER

Yeah, it's probably the ECU and the stupid torque management you can't seem to ever switch off.

urbamworm

I am curious what kind of difference there is with these cars going from 91 up to 93 octane. I know 91 is tough to use on some turbo cars for getting as good of numbers. What do you run for peak timing on 91 octane? Are you around 18 degrees or can you actually get more out of it?

chiromikey

i think the extra (normal) amount of boost logged on road testing has to do with the fact that there is increased positive air pressure on the front side of the s/c compared to when testing on a dyno with just fans blowing. it's the same reason the scoops work...

ahmad0658

Ok, I got my TTM kit installed too and I will tune my car soon and dyon it. I will post previous dyno numbers and the new ones with TTM kit installed.

Thank you very much Bruce from TTM.

Bramage

good luck Ahmad! Who is doing your tune? Thanks Mikey.. good to see you, and good info I forgot about that 130 MPH wind blasting in.

Sorry, I edit a lot.. Urbam.. 91 Octane sucks. 18 degrees is about normal, sometimes I slip a little higher. Since we have not had 93 for years, I don't know how much extra timing you can get.

TTMotorsports

Michael-
It amazes me that people can"t comprehend the lack of air on a dyno that a car can ingest, especially Dane who I thought was very knowledgeable!

j\k Dane!

You stating that the scoops actually work is very much appreciated. There is plenty of data from members backing that up but a person as experienced as you with cars, especially the M113k's, stating that is awesome. Thanks Michael!

ahmad0658

Jeremy from OE Tuning will tune my car

I want to know:

Running 91 or 93, will effect engine boost?

I would like to tune for 93, but I have no idea which is better? 91 or 93?!

urbamworm

You need to tune for what octane rating you have available in your area. The higher the octane the more ignition timing can be ran as well as boost before the engine senses knock and retards timing and dumps boost. I am not sure how they rate gasoline in the UAE, what does it say at the pump there? 87, 89, 91, 93? Or do you use RON numbers like 94 and 98 listed at the pump?

The U.S. uses a rating of RON (research octane) + MON (motor octane) / 2 to get our ratings while some other countries use just the RON number.

Example: A fuel has a Ron of 98 and Mon of 92 so we would say that is (95+91)/2= 93 octane fuel while some country overseas would rate the equivalent they have as 98. So you would just need to find out what is equivalent to what you have available in order to let the tuner know. Since you are going to use an American tuner who works with 91 and 93 octane as the high octanes available at the pump (91 on western side of the U.S. and 93 available in central and eastern side of the U.S.) simply find out the equivalent and you will be golden unless you actually have the same rating over there.

ahmad0658

Well in the UAE we use 95, 98 and we have something less than 95 but i don't know what kind of octane. The numbers I used above are as per US standards to make simple for everybody

urbamworm

Well like I said, use the highest one you have available wherever you travel so if you have something equal to 93 than tune for U.S.A. 93 known as your 98, the higher the number the better.

Ali_E55

thats right Ubra

it is better to tune for the best gas you have in your area

for us is 98 = 93 US. i simplify it for tuners and US memebers by the same method.

jmb614

What datalogging software and sensors are you using, if you don't mind me asking? I'm liking the look of the graphs.