Squadra Chips???? - Alfa Romeo Bulletin Board & Forums
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post #1 of 20 (permalink) Old 04-02-2019, 08:28 AM Thread Starter
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Squadra Chips????

I was reading an older post on the Squadra chip for S4 Spiders and am curious as to whether they are currently available. A cursory online search turned up nothing in English. Is there a dealer in the U.S. or U.K?

Bill

1991 S4 Spider "Gabriela", 2017 VW Golf R, 2018 VW GTI,

Previous obsessions; 2006 Mustang GT, 2006 BMW Z4M, 5 other Bimmers, Capri V6, Renault 5, Lotus Cortina, Sunbeam Alpine, Ducati Diana Mk 3, Norton Commando
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post #2 of 20 (permalink) Old 04-02-2019, 09:13 AM
But Mad North-Northwest
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I'd just email them directly: they speak English very well. [email protected]

The S4 chip works well but you really need 93 octane gas as it mostly works via more aggressive timing advance. I tried one in my car but it pinged too badly on California 91 octane to use.

Tom

1963 Giulia Spider (1750 engine)
1974 GTV
1991 Spider
Former: 1987 Milano Gold
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post #3 of 20 (permalink) Old 04-02-2019, 09:14 AM
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post #4 of 20 (permalink) Old 04-02-2019, 10:08 AM Thread Starter
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Gubi,

I noted in an older post that you had a problem with pinging on CA 91 octane. We're limited to 91 here in Arizona for some reason and I suspect I'd have the same problem. I'll continue to investigate the chip but I suspect I'll pass due to the octane issue. Many years ago I had a hot-rodded Renault and I resorted to buying little bottles of 104 octane boost to kill the detonation problem. That was tedious and expensive.

Thanks for the replies gentlemen.

Bill

1991 S4 Spider "Gabriela", 2017 VW Golf R, 2018 VW GTI,

Previous obsessions; 2006 Mustang GT, 2006 BMW Z4M, 5 other Bimmers, Capri V6, Renault 5, Lotus Cortina, Sunbeam Alpine, Ducati Diana Mk 3, Norton Commando
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post #5 of 20 (permalink) Old 04-02-2019, 10:14 AM
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I have one fitted and the difference is very subtle, so really don't expect to suddenly have a racing car

you get a bit more pull without changing down a gear, and the reason I got it was I was fed up changing down to first gear trying to get up some steep swiss mountain roads, following my brother in his 59 vette!

The performance is very smooth (as is a healthy normal S4, tbh) with perhaps a bit more pull.
The one difference you feel is in higher revs, so overtaking on the motorway, or really pushing it on long twisting roads....but we are speaking above 4000/4500 rpm

Idling, starting, and generally poodling along thru town traffic is unchanged, which is also good.

I do not get worse mileage per gallon, which is good, as the super plus fuel (100+) here costs 18 eurocents a litre more! (basically 76 UScents per US gallon more)

The first chip they sent me didn't work!.... but they were very quick to send a replacement as when they checked the one I sent back it was indeed not correctly programmed.
Fitting was easy once they told me which way up it was supposed to go
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Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.

Last edited by spiderserie4; 04-02-2019 at 10:18 AM.
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post #6 of 20 (permalink) Old 04-02-2019, 02:10 PM
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This thread kinda touches base on something I have been wondering. I have sent ECUs back East a couple of times to have them "reflashed" for performance and if you have modifications he will consider this on the map. I realize that these all ran off of a Power Commander module but I would think someone would have delved into this procedure for the injected years.... anyone heard of anyone doing this?
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post #7 of 20 (permalink) Old 04-02-2019, 02:16 PM
But Mad North-Northwest
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The chip with the fuel/timing maps is just an EPROM. You can pull it, read it with an EPROM reader, and write whatever map you want: I think there's software out there that decodes the Bosch maps. I've actually read the EPROM with a reader I have, and I have the stock maps sitting around somewhere.

That said, Squadra's already done the work of coming up with a good tuned map. I'd think the smart move would just be to buy their chip rather than just DIY it, especially considering every DIY tuning cycle would require removing the chip from the ECU.

Tom

1963 Giulia Spider (1750 engine)
1974 GTV
1991 Spider
Former: 1987 Milano Gold
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post #8 of 20 (permalink) Old 04-02-2019, 02:43 PM
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Are the chips just for the S4's or so they work with the earlier injection models?
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post #9 of 20 (permalink) Old 04-02-2019, 02:46 PM
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Oh, I see you brought up Bosch so I guess you can write a map for an S3! I certainly would like to learn about this further...
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post #10 of 20 (permalink) Old 04-02-2019, 02:52 PM
But Mad North-Northwest
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No. The S4 uses Bosch Motronic, which has a digital EPROM map as described above. The S3 uses L-Jetronic which is analog. There are ways to modify the S3 ECU but they involve changing resistors, etc, and are by no means simple.

Tom Zat used to sell the "Pandora's Box," for example, which modified the V6 L-Jetronic fuel and ignition ECUs. I don't recall anyone doing that for the Spider.

Tom

1963 Giulia Spider (1750 engine)
1974 GTV
1991 Spider
Former: 1987 Milano Gold
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post #11 of 20 (permalink) Old 04-02-2019, 03:00 PM
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Well, there goes that idea! 😜 Thanks for the knowledge though!
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post #12 of 20 (permalink) Old 04-04-2019, 04:16 PM
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I got a second hand chip for my S4 originally from Alfa Ricambi. I don't know if it is same as the Squadra chip but it is supposed to increase the redline (engine cutoff) by about 500 RPM and as I recall adjusts the spark curve. The difference is noticeable if not earth shattering. The idle is smoother and the engine seems to have a little more bite. I have not noticed any pinging. The increased rev limiter is fun.
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post #13 of 20 (permalink) Old 04-05-2019, 06:43 AM
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Quote:
Originally Posted by Paulinct View Post
I got a second hand chip for my S4 originally from Alfa Ricambi. I don't know if it is same as the Squadra chip but it is supposed to increase the redline (engine cutoff) by about 500 RPM and as I recall adjusts the spark curve. The difference is noticeable if not earth shattering. The idle is smoother and the engine seems to have a little more bite. I have not noticed any pinging. The increased rev limiter is fun.
I also have the old Ricambi chip in my S4, and I agree with your comments. Comparing the Ricambi and Squadra chip via seat-of-the-pants, there is really no detectable difference IMO. Both will improve your S4 Spider. But the Squadra chip is still available, unlike the Ricambi.

The changeout of the chips in the Motronic ECU was simple, you just want to be grounded, and clean, and be patient with the tweezers.

alfaloco
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post #14 of 20 (permalink) Old 04-05-2019, 07:17 AM
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Mine triggers the cbeck engine light so when we had emissions testing in CT I had to swap the chip in and out for the annual test
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post #15 of 20 (permalink) Old 04-05-2019, 07:24 AM
But Mad North-Northwest
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That was apparently an issue with the Ricambi chips. The Squadra chip doesn't do that as far as I know.

Tom

1963 Giulia Spider (1750 engine)
1974 GTV
1991 Spider
Former: 1987 Milano Gold
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