New Member Dyno Sheet

piko6 · Nov 19, 2005

HELLO I AM A NEW MEMBER ON THIS FORUM
I HAVE BEEN READING THE POSTS
HERE IS MY DYNO SHEET BEFORE COMPUTER CHIP AND AFTER
DYNO WAS DONE IN 4TH GEAR BOTH TIMES gas is 93 octane
NEXT IS A PULLEY 2.5 INCH 20 PSI

WE WILL SEE WHAT KINDA RESULTS I GET FROM THAT

PIKO6 :biggrin

B O N Y · Nov 19, 2005

welcome! thanks for the post! how many miles on the odo, what was the temperature and humidity? good pull!

piko6 · Nov 19, 2005

thanks..

my odometer has 749 miles
temp was 77 degrees
dont know what humidity was...

piko6 · Nov 19, 2005

if you look on the bottom of the sheet you can see in fine print the temp and the humidity

FGT4me · Nov 19, 2005

Thanks for posting.
Nice increase with the computer chip.
Looking forward to your result with the pulley.

Any exhaust mods planned?

dbk · Nov 20, 2005

Woah! That's a nice big gain from just a reflash. 13 rwhp and 43 rwtq :eek Get that pulley on there and let us know how it does :thumbsup

piko6 · Nov 20, 2005

i am supposed to get the pulley in this week i will try to get it on this week as well though it will be tough with the holidays

however i am searching right now how to get better rubber and or bigger rubber to get more traction since the increase makes my first gear progressively more useless

piko :biggrin

B O N Y · Nov 20, 2005

Thanks for your reply, I see you are in Florida, thus the high humidity. Looks like you are going about it the right way.

When I was at SEMA, I saw on the Bonspeed GT their wheels which look wider.
Their web site is down, and I have faxed them asking for information, nobody has replied so far. The GT needs more rubber, thats for sure.

Looking forward to your next pull!

jamie · Nov 20, 2005

When you say chip what do you mean by that? Where do you get it and who makes it?
thanks Jamie

piko6 · Nov 20, 2005

by chip i mean computer reflash

it is a device that plugs in the obd2 and you canprogram the settings for you engine etc..

i do not know how to do that but a shop that modifies mustangs and or cobras would know exactly what to do since the files that they use in these reprogrammers are available on the internet..

do not do it yourself if you dont know how to..

ask a good cobra tuner to do it for you....

piko

my tuner gave me a reprogrammer with current settings at 545 hp and 1 push of a button i can get it to stock or 532 hp ,,

barondw · Nov 20, 2005

It's normal for piggy back type devices to have various settings, stock, drag racing, road courses, etc.

A true piggy back is relatively easy to use and once installed doesn't really need the resetting by the vendor you can do it yourself. People like Perfect Power make them for all types of cars. Also the Predator by Diablo is a less sophisticared type unit. Installation does require a professional.

Dave

werewolf · Nov 20, 2005

I'd be real interested to see exactly what the reflash modified. That's about a 50 ft-lb torque increase (at the motor) from ~3Krpm to ~5Krpm with virtually no change in the air/fuel ratio !

SLF360 · Nov 20, 2005

werewolf said:
I'd be real interested to see exactly what the reflash modified. That's about a 50 ft-lb torque increase (at the motor) from ~3Krpm to ~5Krpm with virtually no change in the air/fuel ratio !

Agree, that is almost too good to be true, unless we would believe the car comes totally screwed up, what I do not believe possible...

Maybe just the dyno got tuned up ...?

werewolf · Nov 20, 2005

I suppose there's a little to be gained in advanced timing, but you can only go so far with 93 octane under boost .... :confused

B O N Y · Nov 20, 2005

werewolf said:
I suppose there's a little to be gained in advanced timing, but you can only go so far with 93 octane under boost .... :confused

In California we can only get 92octaine, with the exception that some Union 76 stations sell 100octaine race gas. The race gas is pricy, but so is performance.

Most cars are set up for 92octaine and can build power by adjusting for 93.

If the dealer can detect a reflash, and there is an engine issue (burnt valves or pistons) say adios to warranty coverage for that repair.

werewolf · Nov 20, 2005

I hear ya bony ... I mentioned 93 octane because that's what was used in these dyno runs. Wonder how much of the improvement was due to timing advance?

jamie · Nov 20, 2005

Yeah since I asked the question my buddy Jason Heffner and I talked and he said unichip has a reflash for these cars and they way it is able to pick up hp and tqe is because the cars are set up for 91 octane according to him.

werewolf · Nov 20, 2005

jamie said:
Yeah since I asked the question my buddy Jason Heffner and I talked and he said unichip has a reflash for these cars and they way it is able to pick up hp and tqe is because the cars are set up for 91 octane according to him.

That certainly makes some sense. I think the cars are designed for 91 octane, so 93 will allow for more advanced timing. But holy cow ... 50 ft-lbs (at the motor)! I wonder how much will be gained by leaning the a/f out a bit ...
I'd love to see the stock & modified timing curves :biggrin

barondw · Nov 20, 2005

I don't believe the difference between 91 and 93 octane would produce those gains. 105 octane or higher still won't produce that much of a gain. The reflash changed something significantly in the MAP or elsewhere in my opinion.

Dave

B O N Y · Nov 21, 2005

Dave, I am with you. I have ran PowerChips in my MBZ's and they set up of either 91 or 93 Octane and remap extensively. Whipple claims to remap in such a way that a Ford dealer can't detect it.

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