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Old 02-21-2004, 07:01 PM   #31
rwh11385
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TJ, straight from the horse's mouth, as they say:

Quote:
FWIW, I used to own/drive a 1987 325iS, and the original chip I did was for
my own car. It's a bit more than 3-4hp from memory, more like 10 or so.

Jim
I emailed Jim Conforti and there you have it. Gain at peak is around 10hp, not 3-4. So max hp on a chipped 325i would be ~177.

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Old 02-21-2004, 11:35 PM   #32
dansciol
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For reference my 85 325e with 210,000 miles put down 118hp, 160 ft/lbs at the rear wheels, with the following mods.

Shaved head (.020") muffler man 2 1/4" exhaust with high flow cat and Flowmaster delta flow muffler, ebay knockoff ecu chip, 325i Throttle Body, Elbow, and airbox with K&N filter, throttle body heater disabled, Bav auto 8mm perf. wires, mobil 1 15w-50, redline d4 in the manual gearbox, valvoline synpower 75w-90 in the diff.
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Old 02-22-2004, 08:15 AM   #33
BimmerKris
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Quote:
Originally posted by dansciol
For reference my 85 325e with 210,000 miles put down 118hp, 160 ft/lbs at the rear wheels, with the following mods.

Shaved head (.020") muffler man 2 1/4" exhaust with high flow cat and Flowmaster delta flow muffler, ebay knockoff ecu chip, 325i Throttle Body, Elbow, and airbox with K&N filter, throttle body heater disabled, Bav auto 8mm perf. wires, mobil 1 15w-50, redline d4 in the manual gearbox, valvoline synpower 75w-90 in the diff.
man there must be something wrong with the motor in your car. It had 120hp and 170 lbs/ft bone stock. with all that shit added on you should be a bit higher then that. time for a rebuild
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Old 02-22-2004, 12:52 PM   #34
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Quote:
Originally posted by BimmerKris
man there must be something wrong with the motor in your car. It had 120hp and 170 lbs/ft bone stock. with all that shit added on you should be a bit higher then that. time for a rebuild
He said to the rear wheels.....

assuming a factor of 1.17 for drivetrain loss, he was making 138hp and 187ft-lbs.
Woohoo, almost 140hp........

Dansciol, just fyi, here is the table of info for the JC chip of the e. Maybe you ought to pick up a real JC.
85-87 325e
Before HP max: 121 / After HP max: 141 Before torque max 174 / After max: 192
Both of which are an improvement on your figures. Chips are cheap used, you should be able to find yours for less than $100, and is a great upgrade.
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Old 02-22-2004, 05:45 PM   #35
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Quote:
Originally posted by rwh11385
He said to the rear wheels.....

assuming a factor of 1.17 for drivetrain loss, he was making 138hp and 187ft-lbs.
Woohoo, almost 140hp........

Dansciol, just fyi, here is the table of info for the JC chip of the e. Maybe you ought to pick up a real JC.
85-87 325e
Before HP max: 121 / After HP max: 141 Before torque max 174 / After max: 192
Both of which are an improvement on your figures. Chips are cheap used, you should be able to find yours for less than $100, and is a great upgrade.
Cool, are these figures calculated from wheel horsepower? Or just estimated crank figures?
Where do the no name chips on ebay come from? How are they made? Why wouldn't they have just as much gains as a JC chip?
Heres one for reference:
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2461823774
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Old 02-22-2004, 05:55 PM   #36
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Quote:
Originally posted by dansciol
Where do the no name chips on ebay come from? How are they made? Why wouldn't they have just as much gains as a JC chip?
Heres one for reference:
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2461823774
You answered your own questions, really. You have no idea where they came from, they could be a copy of a JC if you're lucky, or they could be the product of some not-so-skilled guy sitting in his basement. And I'm not into risking the latter when it controls so much of your engine's actions.
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Old 02-22-2004, 06:10 PM   #37
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I understand and agree with your point.
I'm just curious how some guy in his basement can build a specialized microchip and still sell it cheaper than many retailers.

I would like to learn about this process, lol.....
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Old 02-22-2004, 07:34 PM   #38
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Yeah, you don't know with ebay chips. Not worth it, just buy a genuine used.

As far as brands, only go TMS/JC!

Read this:
http://member.rivernet.com.au/btaylo...hipDesign.html
JIM C is pretty confident in his work.


Quote:
Date: Tue, 26 Jan 1999
From: Jim Conforti
Subject: Comparisons in the mirror

Manuel Paredes asks:

> Next question; does anyone have any information, meaning data, comparing
> the JimC chip to other chips. I am looking for either Dyno comparisons
> or actual data from Jim himself. I want to purchase one for car but I
> have this friend who is pretty knowledgable and says the "racing
> dynamics" chip is better and will out perform any other chip.

That's rich..

If you're talking about the "REAL" Racing Dynamics SpA, who does their
chips (hint: his name is Jim C.) sold here as RD Sport products

AND

If you're talking about US Racing Dynamics.. aka Electrodyne, they
at last check, got their chips from a source that bases them on
MY code for OBD-I vehicles..

So, if you're asking who's better, out of ME and ME, I'd say ME!

Jim C.

PS: All in all, exhaust is NOT the best use of money!
He's the shizz-nit!
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Old 02-22-2004, 08:04 PM   #39
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Nice
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Old 02-22-2004, 08:56 PM   #40
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rwh, you are using dyno numbers and corrections way too much as a comparison. Dyno's are used for tuning, not to compare car to car. Did Ted dyno his car back to back when it was stock, once with a chip, and once without?

AA has dyno plots on their web site, go study them.
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Old 02-22-2004, 09:02 PM   #41
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Quote:
Originally posted by Digitalwave
rwh, you are using dyno numbers and corrections way too much as a comparison. Dyno's are used for tuning, not to compare car to car. Did Ted dyno his car back to back when it was stock, once with a chip, and once without?

AA has dyno plots on their web site, go study them.
Yeah. But it's hard to try to find a standard meterstick to use, so I try to reference dynos. I know someone ran a dyno of a stock 325i and turned out #'s higher than someone's chipped i. (just like I heard, for every 5 engines produced, 2 have 5% more power, 1 is right on, 2 have 5% less power......) So dynos cannot really be used to compare, but I can try.

I can ask Ted about his dyno runs when he's online same time as me next.

Hopefully I can make a dyno run back to back with and without a JC chip. Illinios chapter is having a dyno day March 28th, but it costs $50. We'll see.
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