LOCO 05' E55

I always got extremely higher #s and higher torque dynoing on 3rd..so I was told many times 4th is where the ticket to real life #s is..

ShangoAshe

can't wait to see the results!

urbamworm

He already said he made 480 and 485 SAE corrected on the last page and car is running rich in which I would assume the top end.

chawkins2001

If you made 480rwhp SAE with a 10.00 A/F, your car should make around 515rwhp once it is tuned to about 11.5 A/F That is PIG RICH and would get the file adjusted.

urbamworm

As long as that rich a/f isn't intake temp related. On the same dyno and same day I had a 509whp SAE corrected run and a 458whp run due to the car going very rich in the upper rpms from high intake temps/heat soak.

chawkins2001

True, could be pulling timing too, did not think about that.

urbamworm

Yeah, gotta remember he is running a 180mm pulley now and I don't know if he has logged to check intake temps. But he could be getting high intake temps making it go rich doing these dynos and since the bigger throttle body was just installed recently it is being blamed and intake temps being overlooked unless of course he has/is checking intake temps and they are not bad making the cause go to something else.

skratch77

It was 77 in the shop and we had 1 ****ty fan that honeslty I think the stock radiator fan is better.

I dont know why but my first 2 pulls the car was pig rich.I reset the adaptation on the 3rd run and I hit 503whp and its still on the rich side.I was watching my aits and the last run(503whp)started at 89 degress and hit 145 by 170 mph in 4th gear.I saw 18-20 deg up top end on that run and after resetting the fuel trims it leaned out a little.

the shop said to leave the tune as its becasue the car is not getting enough airflow and on the street it will lean out.

I will post up all 3 runs,its funny that my car made the most power on the 3rd pull.

and everyone please dyno in 4th gear,3rd gear is cheating threw torque multiplied by gearing and not using a 1:1 ratio.

no meth injection,for some reason I am having aits issues and dont know whats going on.

The car picked up 25-30 fltb and 20whp up top end with the 80mm and having the a/f alot richer than my last time I used this same dyno.

with a 11.8 a/f I sould see 525-530 whp

shardul

iTrader: (1)

each time you reset ecu / fuel trims they tend to lean out a bit. it happend to my car also.
Once you drive around for a bit they will get a bit richer.
You need a wideband to see actually what the ARF are while driving around.

So the big question did the bigger TB pick up power?

skratch77

Not only did it make power past 5500-redline it did it with a way richer a/f

skratch77

Here is my car on the same dyno with everything the same except the bigger tb.

These runs are both the 3rd run on the day and both using 4th gear.I saw a thread a while back with either vrp or mhp saying they were going rich on the a/f with a cone intake setup.Im thinking maybe I have turbulence somewhere and is causing it to go rich.

this is after I reset the fuel trims,the run before this was 10.03 up top and it didnt shoot up going leaner like this one,it stayed pig rich all threw the top end.

Jakpro1

Car has all kinds of safe maps. If she picks up that it's running too lean, it commands the fuel to open up the floodgates and just dump to save the engine (even though it's not in danger)

May need a retune to get her to calm down and stop the floodgates.

skratch77

The problem I think is I cant get the car to adapt becasue I cant go wot on the street now that its colder out.I just get traction control kicking in.

I am going to try something I think that is causing some turbulance and will redyno next week to see if it leans out.

The tune is exactly the same and on all my 3 runsand last time the a/f stayed in the 11.5-8 up top.The only difference is the tb.can the car sense more air and dump fuel?I doubt it lol I think its either saw knock and went safe mode like you said.

This time it started richer from the get go and went nuts at 5k on the first pull.I think it was 478whp with 10.0 at 478 on a cold car.

urbamworm

I suppose this question will be asked when you post a graph since it will show but was 503whp SAE corrected or STD uncorrected? You said the other runs earlier were corrected but I see your old graph has uncorrected numbers so wasn't sure if the 503 was also uncorrected.

skratch77

the graph I posted are both using the same correction factors so everything is apples to apples and the only difference is the bigger tb.

those runs were even the 3rd heat soaked run of the day.

I think it was like 20whp and 35flts at 5800 rpms gained with the bigger tb and also with a richer a/f

Its crazzy how it was a cold rainy day in june when I went and today was cold and rainy also,even the temps were exactly the same!!!

urbamworm

You mentioned your intake temps above, how were they on your last dyno that you are comparing to this one? The intake temps going higher are easily the cause to make the car go rich if in fact they did go higher this time. Like I said earlier, my car dynoed 458whp corrected when I had high intake temps (they had the car running for several minutes on the dyno because they strapped it down wrong and had to fix it leaving the car running. The car then was shut off and cooled down and did the 509whp corrected run since it didn't dump a **** load of fuel up top with cooler intake temps.

skratch77

the aits I mentioned above were on the last run today.They were around 89 before the run started and I think I saw 144 max by the end of the run.

I also saw 18-20 degress top end timing.This was watched on the fly with my cell so I couldnt log it.I dont know if anyone has gotten the torque app to log right but I cant get it to work.

The car is going pig rich because there is an issue at hand,the tune is doing excactly what its supposed to do.I think it saw knock as I didnt know I was going to dyno the car this week and needed gas and put in some no name brand gas.

It also saw 140+ aits and from what I read on here the car starts dumping fuel right past 130-140.On the street the car will see alot more air and alot colder temps so Im leaving the tune alone until I can log it with a wide band.

you guys need to remember Im dynoing in 4th gear and its putting a hell of alot more load and stress on the engine as running it in 3rd gear.on the street the car feel like its on juice and can easily break the tires loose.

urbamworm

I mean did you log the iats on the last visit to the dyno in June before this one and what were they then if you did check them? I was wondering if maybe last time they didn't rise as much as today so today you suffered from the rich condition where last time you didn't because the temps didn't go that high.

skratch77

I didnt bother logging them because the a/f looked perfect,I was happy that the car made 491 whp on the 3rd pull and the a/f was 11.5-11.8 on all 3 runs.

I would think it might of been just about the same as today.I might have a bad ait sensor becasue even the other night when it was cold out and the pump working I would see temp spikes and drops without engaging the blower.

like look at how the a/f went from pig rich to almost normal on the run above,I have never seen a car do that.

either alot of knock going on or a huge spike in ait temp.

urbamworm

Yeah that is odd how a/f goes down then back up. And I totally didn't even realize that graph was your last dyno and this dyno together, didn't pay much attention to it and though you were just posting your graph from months ago, not a combined graph of then and now.

skratch77

Now that Iv seen the gains up top end with these tbs im going to get an 82mm and I have this one and another 80mm for sale.

If you seal it all up right and let it adapt you wont throw codes,I just got an inspection sticker the other day with this 80mm amg tb on and the ecu was reset a few times before.Now that I think about it my car is prolly freaking out becasue I kept on reseting the tb to clear the dreaded p0505 code.

GT-ER

STD is a correction factor like SAE is...although their values are different. Uncorrected in uncorrected.

GT-ER

I dunno...my graph pulled all the way to redline just like your 502whp one and I have an oem TB ( it looses maybe 2-3whp, that's it, unlike your 491 dyno). I still believe that a larger TB can give power, I'm just skeptical by how much.

skratch77

your running no catts with 2.5 in exh,Im stock mid pipe with stock second cats and everything else stock all the way back to the tips.

If I get my a/f the same as my 490 run it will break 520whp,stay tuned my friend

GT-ER

Oh wow...why would you still have that installed? LOL.