ECU Chips
06-25-2001, 10:54 PM
#1
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ECU Chips
I'm new to Rennlist and am seeking advice on performance chips. I'm looking for opinions, --no offense Sam,I appreciate your comments, just looking for other points of view 
I'm interested in the Weltmeister chip. Anyone out there use it or any other chip? I'm interested in whether the performance claims are real/worth the expense. I'd like to use the chip with the stock exhaust, but I'd appreciate feedback from anyone out there who's used any chip. Comments anyone? Thanks in advance !!!
I'm interested in the Weltmeister chip. Anyone out there use it or any other chip? I'm interested in whether the performance claims are real/worth the expense. I'd like to use the chip with the stock exhaust, but I'd appreciate feedback from anyone out there who's used any chip. Comments anyone? Thanks in advance !!!
06-26-2001, 12:31 AM
#2
RL Technical Advisor
Hi Edward:
Welcome to the Rennlist Community,....you'll find a lot of neat folks here with a common interest (of course!) and a real willingness to help.
I will not comment on the specific chips that are available but I will offer some questions that you should ask before you spend any money.
1) Will the chip run on the fuel octane available in your area?
2) Has the rev limiter been raised or is it at the stock 6750 RPM?
3) How much of a power improvement are they claiming?
4) Do they provide some customer references?
This ought to assist you in making an informed decision on this very important part of your car.
Welcome to the Rennlist Community,....you'll find a lot of neat folks here with a common interest (of course!) and a real willingness to help.
I will not comment on the specific chips that are available but I will offer some questions that you should ask before you spend any money.
1) Will the chip run on the fuel octane available in your area?
2) Has the rev limiter been raised or is it at the stock 6750 RPM?
3) How much of a power improvement are they claiming?
4) Do they provide some customer references?
This ought to assist you in making an informed decision on this very important part of your car.
06-26-2001, 01:34 AM
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Originally posted by Steve Weiner-Rennsport Systems:
<STRONG>Hi Edward:
Welcome to the Rennlist Community,....you'll find a lot of neat folks here with a common interest (of course!) and a real willingness to help.
I will not comment on the specific chips that are available but I will offer some questions that you should ask before you spend any money.
1) Will the chip run on the fuel octane available in your area?
2) Has the rev limiter been raised or is it at the stock 6750 RPM?
3) How much of a power improvement are they claiming?
4) Do they provide some customer references?
This ought to assist you in making an informed decision on this very important part of your car.</STRONG>
<STRONG>Hi Edward:
Welcome to the Rennlist Community,....you'll find a lot of neat folks here with a common interest (of course!) and a real willingness to help.
I will not comment on the specific chips that are available but I will offer some questions that you should ask before you spend any money.
1) Will the chip run on the fuel octane available in your area?
2) Has the rev limiter been raised or is it at the stock 6750 RPM?
3) How much of a power improvement are they claiming?
4) Do they provide some customer references?
This ought to assist you in making an informed decision on this very important part of your car.</STRONG>
Steve,
They tell me their chip is programmed for:
1) 92 octane
2) NO change in REV limit
3) a peak increase to 293HP@6500RPM (crank)
4 HP gains from 3500 up with no deficits below 3500RPM
Also, they -like most others- offer 30 day money back if unsatisfied.
Are these claims reasonable? In another post re lightened flywheels, you commented on the pros/cons of any performance upgrade? (great post, by the way). What are your thoughts here. Yes, I'm interested in enhancing performance, but I'm unwilling to make "uncomfortable" compromises --already have lots of those in a heavily modified '77 ALFA Spider that I love, but my '95 993 is my daily ride. I understand that you probably don't want to comment on another company's product, but I assure you that I'm just looking for honest feedback -good or bad- on the mod, not a company. Thanks! ......and thanks to all for an excellent,informative site that I've been on for only a few days and am already addicted to!
06-26-2001, 10:15 AM
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Edward, If I were you I would call Steve today once it is late enough on the west coast and talk to him. You will probably find like most of us here have found that he takes the time to talk to you and does the job right the way you want it done. I would bet after talking to him you would feel much more comfortable having Steve do a custom program chip for you to make your daily driver a little better.
My 95 is also my daily driver and while I have not changed the computer, I have had many great conversations with Steve.
Good luck and remember that it is not always wise to try to save a buck or two when modifying our fine cars.
My 95 is also my daily driver and while I have not changed the computer, I have had many great conversations with Steve.
Good luck and remember that it is not always wise to try to save a buck or two when modifying our fine cars.
06-26-2001, 10:25 AM
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What EJ doesn't know is that Steve charges by the minute and all the phone calls EJ have made to Steve is adding up to a pretty sum. Steve is just waiting for it to reach an even amount for the ease of billing before he sends the bill the EJ.…….
Ha Ha Ha
Of course that was a joke, or else I too will be getting a big bill from Steve soon….
Ha Ha Ha
Of course that was a joke, or else I too will be getting a big bill from Steve soon….
06-26-2001, 10:35 AM
#7
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Originally posted by Robin 993 DX In Atlanta:
<STRONG>What EJ doesn't know is that Steve charges by the minute and all the phone calls EJ have made to Steve is adding up to a pretty sum.</STRONG>
<STRONG>What EJ doesn't know is that Steve charges by the minute and all the phone calls EJ have made to Steve is adding up to a pretty sum.</STRONG>
LOL!
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06-26-2001, 01:16 PM
#8
Edward,
Be careful when selecting a chip. It takes a lot of expertise to do it right. Anybody can bump up the timing by a few degrees across the board, but that’s not necessarily the best thing to do. Weltmeister claims they have the expertise, but that claim of 23 HP gain is outrageous. Follow the advice of the other posters and call Steve. He’ll set you straight. And there was some other good advice, don’t try to be too cheap. You get what you pay for.
Tom
Be careful when selecting a chip. It takes a lot of expertise to do it right. Anybody can bump up the timing by a few degrees across the board, but that’s not necessarily the best thing to do. Weltmeister claims they have the expertise, but that claim of 23 HP gain is outrageous. Follow the advice of the other posters and call Steve. He’ll set you straight. And there was some other good advice, don’t try to be too cheap. You get what you pay for.
Tom
06-26-2001, 02:09 PM
#9
RL Technical Advisor
Gents:
(laughing so hard that I fell outa my chair and put ANOTHER knot on my head),.........
Before I open a another message, I'm going to put a set of our Schroth 6 pt harnesses on my office chair.
Just like Pete said, 23 HP is rather optimistic. We typically see around 15-18 HP for the OBDI & OBDII chips with significant gains in mid-range torque and overall throttle response. Even our aggressive race-gas-only chips do not make a 23 HP peak increase.
The RS Flywheel setup is real neat but MUST be used with either the appropriate software or install the weighted ones offered by Andial. Either solution will cure the stalling issues these have. The reciprocating weight decrease is significant and does make the engine snappier.
Glad you got some value from reading our website. A new one is under construction as we speak, and will have lots more content and pictures. Stay tuned
Off to do the billing,......
(laughing so hard that I fell outa my chair and put ANOTHER knot on my head),.........
Before I open a another message, I'm going to put a set of our Schroth 6 pt harnesses on my office chair.
Just like Pete said, 23 HP is rather optimistic. We typically see around 15-18 HP for the OBDI & OBDII chips with significant gains in mid-range torque and overall throttle response. Even our aggressive race-gas-only chips do not make a 23 HP peak increase.
The RS Flywheel setup is real neat but MUST be used with either the appropriate software or install the weighted ones offered by Andial. Either solution will cure the stalling issues these have. The reciprocating weight decrease is significant and does make the engine snappier.
Glad you got some value from reading our website. A new one is under construction as we speak, and will have lots more content and pictures. Stay tuned
Off to do the billing,......
06-26-2001, 03:14 PM
#10
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Steve,
Sorry I hurt your head...I'll try to avoid the lame stuff.
I've wanted and worked for a porsche for 20 years, and now that I've got a beauty of a guards red 95 with 52K (that actually fit in my p-budget since I was orinally looking for cars in the 75K+ range), I guess I'm suffering from a bit of over exuberance and p-mania! ...which no doubt makes me WANT to believe others' performance claims.
So in deference to all of you who have been posting lots and for a long time, thanks for a great feeding ground from which I plan on doing lots to satisfy my p-hunger and enthusiasm!
Sorry I hurt your head...I'll try to avoid the lame stuff.
I've wanted and worked for a porsche for 20 years, and now that I've got a beauty of a guards red 95 with 52K (that actually fit in my p-budget since I was orinally looking for cars in the 75K+ range), I guess I'm suffering from a bit of over exuberance and p-mania! ...which no doubt makes me WANT to believe others' performance claims.
So in deference to all of you who have been posting lots and for a long time, thanks for a great feeding ground from which I plan on doing lots to satisfy my p-hunger and enthusiasm!
06-26-2001, 04:14 PM
#11
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Edward - I have the Weltmeister chip installed in my 95 C4 Cab (along with an unrestricted air intake and performance exhaust system). I definitely noticed a difference in responsiveness and acceleration - but have no idea what the HP gain actually is. I will say that a C4 Cab is a mite slower than the 993 coupe as both the AWD and the extra weight for the top slow the car down. I have tested my car against an 87 turbo and they seem pretty comparable in overall acceleration (the 993 is better at the low end and of course the turbo kicks *** over 4000 RPM). For the price of the chip and installation I think you have little to lose with trying it.
06-26-2001, 05:26 PM
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Edward,
Something doesn't sound right here. The conventional wisdom is that Weltmeister chips are optimized for the high octane gas avaliable on the east coast. There have been several complaints about excessive detonation when used with the 92 octane juice we have on the west coast. I would do some more research before I spent my money on that chip.
Another thing that bothers me about all of these chips. After the initial expense of mapping the fuel, advance, plus whatever else is changed in the program (total cost $2K?), the cost to re-produce these chips is less than $5 each, and can be done by anyone with a PC and a prom reader/programmer. I don't know where these people get off charging $300 - $500 apiece for them.
Dave
[ 06-26-2001: Message edited by: Dave '95 Cab ]
Something doesn't sound right here. The conventional wisdom is that Weltmeister chips are optimized for the high octane gas avaliable on the east coast. There have been several complaints about excessive detonation when used with the 92 octane juice we have on the west coast. I would do some more research before I spent my money on that chip.
Another thing that bothers me about all of these chips. After the initial expense of mapping the fuel, advance, plus whatever else is changed in the program (total cost $2K?), the cost to re-produce these chips is less than $5 each, and can be done by anyone with a PC and a prom reader/programmer. I don't know where these people get off charging $300 - $500 apiece for them.
Dave
[ 06-26-2001: Message edited by: Dave '95 Cab ]
06-26-2001, 06:15 PM
#13
Originally posted by Dave '95 Cab:
<STRONG> I don't know where these people get off charging $300 - $500 apiece for them.
Dave
</STRONG>
<STRONG> I don't know where these people get off charging $300 - $500 apiece for them.
Dave
</STRONG>
Tom
06-26-2001, 06:27 PM
#14
Rennlist Member
Ok, gotta hop in on this one....
I have a 95 993 coupe that I bought two years ago. One of the first things I did was pop in a chip from an East coast source. At first, I did notice a performance gain, then recently I've been noticing pre-mature detonation under load, and a dyno proved it.
Out went the chip and in went the factory chip. No more early detonation and the car seems to run better.
Moral of this experience? Since I live in California, our gas is loaded with MTBE and other additives. Most East coast gas doesn't have this, and it looks like my chip was not set-up properly for my region. So be careful out there! I would recommend purchasing a chip from someone local with a dyno. This way you can dyno your factory chip and immediately dyno the upgraded chip. If the gains are not there, you don't buy the chip
.
I hope I didn't screw up my engine with my bad chip
Steve and company, what do you think?
I have a 95 993 coupe that I bought two years ago. One of the first things I did was pop in a chip from an East coast source. At first, I did notice a performance gain, then recently I've been noticing pre-mature detonation under load, and a dyno proved it.
Out went the chip and in went the factory chip. No more early detonation and the car seems to run better.
Moral of this experience? Since I live in California, our gas is loaded with MTBE and other additives. Most East coast gas doesn't have this, and it looks like my chip was not set-up properly for my region. So be careful out there! I would recommend purchasing a chip from someone local with a dyno. This way you can dyno your factory chip and immediately dyno the upgraded chip. If the gains are not there, you don't buy the chip
.I hope I didn't screw up my engine with my bad chip
Steve and company, what do you think?
06-26-2001, 06:32 PM
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I guess youre right Tom. It's just one of those things on my list of things that bother me that I can't do anything about.
It's right after 'sitting at a red light for two minutes while the intersection is completly empty'. Has anyone ever calculated the man-hours lost waiting for retarded traffic signals to change?
Dave
It's right after 'sitting at a red light for two minutes while the intersection is completly empty'. Has anyone ever calculated the man-hours lost waiting for retarded traffic signals to change?
Dave