shardul

iTrader: (1)

So these are my dyno charts. Ambient temp was 87 F. Dyno was a Mustang and Kurt Decker was the operator (very knowledgeable guy, better than majority of people in the houston area) Did 3 pulls. The first one was pretty low since the car was heat soaked. Second and third one were identical. Before the 3rd pull we iced the s/c to see if it would make and difference, but it did not.
My Car 2003 E55. My mods are VRP tune and pulley, aux h/e, meziere pump and X pipe.
As you are see timing is being pulled at 5100 rpm even though the IATS were below 140 at 5100 rpms.

RWHP 451
RWTQ 533
INPUTS THOUGHS OPINIONS WELCOME
I think there is room for improvement!
FIRST PULL

By shardul at 2009-09-19
SECOND PULL

By shardul at 2009-09-19
THIRD PULL

By shardul at 2009-09-19

sales@eurocharged.com

There is some room left in that beast!!

Call me sometime...

TopGun32

not bad..

but you are a bit too rich on the top end.

But not bad considering its almost 90F and probably humid.

98aggie

Good meeting you today Shardul - glad I could help you out.

We tried to eliminate the IAT temp and SC heat soak being to high between pulls 2 and 3. But as you tell in the graphs timing is being pulled above 4900rpm. IAT were in the 120-130 range at this rpm. IAT were at 105 at the beging of each pull.

There is another 20hp if the timing was there because you IAT didn't get above 140 until 5900-6000 rpm which is past peak power.

With some fuel/timing changes you should net another 15-20+ over that.

MB_Forever

Not bad for a stage 1 car. Generally speaking, most stage 1 E55s dyno right around 450 whp on a dyno jet. So your car doing 450 whp on a Mustang Dyno is very good. However, I do agree that there still seems to be some more power left in the car. A fine tune should take care of that right away

slownrusty

For reference, my car pulled 442whp and 565wtq with a Kleeman pulley and tune at their Dyno last week. The ambient temp was about 80F.

Yasin

Ali_E55

nice for stage 1

u should feel the power.

loungn14

a/f shows a lot of power left on the table.....

Retune!

Exotic-metal55

Not sure what all the stages are but Shardul has several mods. 180mm pulley, a great cooling system and fair amount of exhaust work after the primary cats.

Starting the dyno run at 105 deg. IAT and not hitting 140 on the run, he should not have timing pulled liked that. You can see the car just goes flat before peak HP. The A/F ratio looks pretty stock to me or if he has a tune it is not working well. He should make this power with out a tune and his current mods.

Hot ambient temps do not hurt the dyno numbers, as they are all corrected. It does hurt cooling a car on the dyno but that is managed by taking a little more time. Starting a dyno run at 105 deg IAT is pretty cool.

Shardul`s cooling system is worth power on the dyno. How? By keeping an average IAT temp below another pulley car without cooling, during a dyno run.. In other words, he is getting denser air into the engine a dyno pull over a car with just pulley and tune (stage one car , I presume)

My 2cents; He either does not have a tune or the tune is jacked. He should be at 465 to 475 with his mods on this dyno..IMO.

bassn_07

Not bad for a Mustang dyno, it's actually higher than my numbers on a Mustang Dyno. My actual numbers were 440 rwhp and 470 rwtq. Plus keep in mind that this is a box tune and once PC custom tunes you it will be making much more. Box tunes will always be towards the safer or richer side of the AFR curve to prevent from running too lean. There are some very strong running PC box tune cars out there with very good ET's and Traps. Have you ran your car at the track yet?

shardul

iTrader: (1)

bass_07 no i have never gone to the track.

bassn_07

I disagree with this because it's hard to say what each car should make on different dynos. My car is a great example of this, it made low numbers for my mods but yet I know I'm making more than 440 rwhp. Shardul's point of reference should be slownrusty, he made 440 on a 11 degree cooler day with a stage 1. By any means I don't think his numbers are anywhere close to stock numbers on that dyno....just going by "slownrusty's" numbers. Just my $.02.

Exotic-metal55

I would like to see him make the same pulls, on the same dyno ,with ECU back to stock.. I firmly feel that he will make the same power or more with stock ECU, based on his car fighting for power..

I don`t know about all this heartbreak dyno stuff.. DJ verses DD veres MD. I do know that every dyno is different in some form or fashion.. My car made 475 RWHP last fall with the old LET BOX tune, pulley, cooling mods and TB. Bone stock exhaust.

I now make 500 rwhp (new LET box tune), pulley, cooling and TB.. Bone stock exhaust still. Same Mustang dyno. I saw an older renntech tuned SL car make 477 on the same dyno.. 172mm, tune, hem headers and maybe cooling. I think stock TB.

bassn_07

In the end I don't think either one of us could say what his car should or shouldn't make on that particular dyno. The best thing Shardul could do is take it to the track and let his numbers there determine the quality of the tune.

I'm sure we all agree that his tune is rich and there's definitely more power to be made . My suggestion to you (Shardul), before spending another dime on a re-tune decide on how far you want to go with modding and do it all at once. This in the end will save you a considerable amount of time and money. Temptation is hard to resist but in the end you'll have exactly what you want with minimal headaches and down time. Just my $.02.

Exotic-metal55

Again, air temp on dyno day has no bearing on the numbers, most are corrected. If not, they shoudl be. It is known, that the correction factor can actually favor a car on a very hot day..

Please read my post. I did not say his numbers were stock. I said he could make the same power...451rwhp with 180mm, cooling and his exhaust work but without the tune.. There are plenty of people that have made power in that range with a pulley and cooling mods. No tune.. Look at his graph, the car is pulling timing, power is not smooth up top and the A/F is what the call pig rich..

Something is wrong!

Edited. ok you keep posting while I am writing or vice versa..

bassn_07

My bad. I didn't clarify my statement, I was referring to stock as "no tune".

bassn_07

NO doubt.... I was thinking the same thing...haha.

Good luck Shardul and take that thing to the track and get some real numbers. Just for reference my friend made 440 rwhp with a stage 1.5 (180mm, RT box tune, DR's, and code 3 HE) on a dynojet and ran a 11.5 @ 123.xxx on a warm day.