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View Full Version : More Horsepower - Why?


DEFYANT
08-21-2006, 02:55 PM
Last year at MVIII I had Lidio make several mods to the Defyant Marauder and dyno tune it. It made a respectable 425 HP and 426 Tq.

On 8/17/06 Lidio upgraded my fuel pump to the SVT Focus pump and dyno tested my car. The new power numbers are 441 HP and 425 Tq.

Where did the extra HP come from? :confused:

The air was cooler, but not by that much

Mods since last year have not been HP related. Except last year I was using 5w 30 oil. This year I have switched back to the Ford recommended 5w 20.
jdando
08-21-2006, 02:57 PM
Lower grill mod?:eek:

Tire pressure?

I am guessing at the cooler air.


jeremy
DEFYANT
08-21-2006, 03:03 PM
BTW, last year I was on OEM tires. This year I had the Nittos @ 35lbs.
KillJoy
08-21-2006, 03:05 PM
Cooler Air + Oil would be my GUESS...

PS - NICE NUMBERS!!!!!

KillJoy
Hotrauder
08-21-2006, 03:06 PM
My guess, Charlie; is that with the increased fuel flow available Lid was comfortable with a little more aggressive tune. What do I win? Dennis:D
Blackened300a
08-21-2006, 03:08 PM
My guess, Charlie; is that with the increased fuel flow available Lid was comfortable with a little more aggressive tune. What do I win? Dennis:D

Thats what Im thinking too, Maybe added some more timing into it and that made a big difference.

Great Numbers!!
Vortech347
08-21-2006, 03:25 PM
Doing back to back runs with my stang on a dyno It would do about 550-555rwhp. After letting it sit for just 15 minutes it did 570. Also was this on the same dyno? Each one reads differently.

The numbers are an important benchmark but the real and best purpose for a dyno is to get the A/F and tune correct.
Tallboy
08-21-2006, 03:26 PM
Osmosis.

Your car was parked next to Bob's...:D
DEFYANT
08-21-2006, 03:33 PM
Osmosis.

Your car was parked next to Bob's...:D

Now there is an interesting car!

Yep, same dyno - same tuner and about 365 days between runs.
Joe Walsh
08-21-2006, 03:48 PM
Nice Dyno numbers Charlie!!

I'm POSITIVE the increases can be attributed to your new trunk mounted intercooler!.....:D
JMan
08-21-2006, 08:05 PM
Nice Dyno numbers Charlie!!

I'm POSITIVE the increases can be attributed to your new trunk mounted intercooler!.....:D

That's funny!:D

In answer to Charlie's question - RPM
Did you twist it a little more this time? Horse power is a function of torque x RPM. Same torque but greater Hp's indicates greater RPM or greater efficiency at high RPM's.

Great numbers!

J
sweetair
08-21-2006, 08:19 PM
Very nice HP #'s. And Tq as well. Good job.:D
Smokie
08-22-2006, 02:52 AM
Charlie great numbers, put up both charts we may never guess right but I like looking at numbers.:D When was the last time you ran your car?
DEFYANT
08-22-2006, 05:49 AM
Good points gents. Thanks.

We are looking into printer / scanners now. I am not paying to scan a paper at the local office store anymore.
Smokie
08-22-2006, 07:49 AM
Good points gents. Thanks.

We are looking into printer / scanners now. I am not paying to scan a paper at the local office store anymore.

Just a suggestion, I have 2 HP Scanner/Copier/Printer. The cheaper one goes for about $125 does a great job, the better one is for doing color picture prints and is only $250. The cheaper one works great. HP PSC 1350.
ckadiddle
08-22-2006, 11:56 AM
We use a lot of HP PSC models here at work for individual desktop users. They seem to hold up pretty well. I have an HP PSC750(?) at home that won't die so I can pick put a newer model. It has lasted me three years or so with home use.