Aces shift light
Modérateur : Modérateurs
Re: Aces shift light
Merci capt’ain !
C’est ce que je craignais/pensais
C’est ce que je craignais/pensais
Re: Aces shift light
Partage du suivi :
1) ccuk me répond cordialement de vérifier que le connecteur du signal n’est pas sur l’isolant….
Et accessoirement de passer de 1à4 ou de 4à1 pour le réglage du boitier De contrôle de l’Aces…
2) ACES:
Entretien très bienveillant avec le fabriquant et réponse détaillée ici :
Hello Emmanuel
Thank you for your email. It was good talking to you on the phone yesterday.
Changing the cylinder settings would be unlikely to improve the situation. If this is set incorrectly, it should still detect pulses but will display an incorrect RPM value. It is likely that 4 cylinders will be correct, in which case, setting to 1 would result in displaying 4 times the actual RPM.
It is difficult to see from the photo if you have reconnected the resistor R13.
Bypassing the 2k2 resistor is unlikely to resolve the issue. The next component in series with the input is a 27k resistor followed by another 27k resistor with a capacitor to ground connected to the mid point so replacing the 2k2 with a direct connection would reduce the input impedance from around 56k to around 54k. The 2k2 resistor is there as a protection against the signal being short circuited to ground if the signal lead was left dangling and perhaps contacted some metalwork.
I think the modification which Caterham came up with originally may be the best option. This involves fitting a reasonably high valued resistor between the signal wire and 12v in order to raise the voltage when the signal wire goes open circuit. Caterham used a 10,000 ohm resistor and I certainly would not recommend anything smaller than this as it would put more load on the ECU. I would expect 20k would work fine and possibly even a higher value. Connection of such a resistor should only put a small load on other components but we would recommend checking with the manufacturer whether connection of such a resistor would overload the ECU or tachometer. The resistor can be fitted externally or if you are good with a soldering iron you may be able to fit it inside the control unit (between the yellow and red wires on the 4 pin socket) or a tiny resistor inside the plug (similar to the 2k2 resistor but between pin 1 and pin 4).
The input stage of the SureShift 2 is designed so that the system can work if the signal is connected to the switched side of a standard inductive discharge ignition coil. If you have access to such a connection this could be a suitable alternative. I suspect that your setup uses a twin coil pack where each coil feeds two cylinders in which case the SureShift should be configured for 2 cylinders. If you go for this option I would recommend reconnecting R13 to protect the input stage to the SureShift 2.
I hope this information is useful to you and that you are able to get the system functioning properly soon. I apologise for the inconvenience. Please let me know how you get on.
Best regards
Julian Adams
julian.adams@aceserve.co.uk
1) ccuk me répond cordialement de vérifier que le connecteur du signal n’est pas sur l’isolant….
Et accessoirement de passer de 1à4 ou de 4à1 pour le réglage du boitier De contrôle de l’Aces…
2) ACES:
Entretien très bienveillant avec le fabriquant et réponse détaillée ici :
Hello Emmanuel
Thank you for your email. It was good talking to you on the phone yesterday.
Changing the cylinder settings would be unlikely to improve the situation. If this is set incorrectly, it should still detect pulses but will display an incorrect RPM value. It is likely that 4 cylinders will be correct, in which case, setting to 1 would result in displaying 4 times the actual RPM.
It is difficult to see from the photo if you have reconnected the resistor R13.
Bypassing the 2k2 resistor is unlikely to resolve the issue. The next component in series with the input is a 27k resistor followed by another 27k resistor with a capacitor to ground connected to the mid point so replacing the 2k2 with a direct connection would reduce the input impedance from around 56k to around 54k. The 2k2 resistor is there as a protection against the signal being short circuited to ground if the signal lead was left dangling and perhaps contacted some metalwork.
I think the modification which Caterham came up with originally may be the best option. This involves fitting a reasonably high valued resistor between the signal wire and 12v in order to raise the voltage when the signal wire goes open circuit. Caterham used a 10,000 ohm resistor and I certainly would not recommend anything smaller than this as it would put more load on the ECU. I would expect 20k would work fine and possibly even a higher value. Connection of such a resistor should only put a small load on other components but we would recommend checking with the manufacturer whether connection of such a resistor would overload the ECU or tachometer. The resistor can be fitted externally or if you are good with a soldering iron you may be able to fit it inside the control unit (between the yellow and red wires on the 4 pin socket) or a tiny resistor inside the plug (similar to the 2k2 resistor but between pin 1 and pin 4).
The input stage of the SureShift 2 is designed so that the system can work if the signal is connected to the switched side of a standard inductive discharge ignition coil. If you have access to such a connection this could be a suitable alternative. I suspect that your setup uses a twin coil pack where each coil feeds two cylinders in which case the SureShift should be configured for 2 cylinders. If you go for this option I would recommend reconnecting R13 to protect the input stage to the SureShift 2.
I hope this information is useful to you and that you are able to get the system functioning properly soon. I apologise for the inconvenience. Please let me know how you get on.
Best regards
Julian Adams
julian.adams@aceserve.co.uk
Re: Aces shift light
Suite et fin :
Connexion du signal allant vers le Sureshift2 sur le blanc/noir sortant de la fiche de l’ECU,
Paramètrage du Sureshift2 sur « 1 cylindre »
Connexion du signal allant vers le Sureshift2 sur le blanc/noir sortant de la fiche de l’ECU,
Paramètrage du Sureshift2 sur « 1 cylindre »
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Re: Aces shift light
Et ?
Cela fonctionne ??
Cela fonctionne ??
- catpower
- Mr Com
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Re: Aces shift light

Test fait avec un montage « volant »
Pas eu besoin d’ampli de signal ou autre
Re: Aces shift light
Montage définitif fait et fonctionnement ok
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- Messages : 474
- Inscription : 14 oct. 2015, 15:18
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Re: Aces shift light
Hello les copains 
Question:
Voila je viens de me commander le shift light Caterham d'origine avec le boitier (le multi led)
Pour le montage sur ma 340R fraichement neuve,
il y a un connecteur de prévu sous le tableau de bord ? de libre pour brancher se shift light ou y a des fil a ponter ?
Merci les amis de votre aide, et retour
Belle soirée les copains
Question:
Voila je viens de me commander le shift light Caterham d'origine avec le boitier (le multi led)
Pour le montage sur ma 340R fraichement neuve,
il y a un connecteur de prévu sous le tableau de bord ? de libre pour brancher se shift light ou y a des fil a ponter ?
Merci les amis de votre aide, et retour
Belle soirée les copains
340R Acid Green
Re: Aces shift light
Salut, cette prise c est bien la prise qui est sur le faisceau d origine de nos caterham (j ai cette prise sur ma 340r) c est donc bien la fiche pour y connecter le sureshift2 ?Lebelge a écrit : 02 juil. 2016, 21:21 Bon, j'ai trouvé la fiche derrière le compte tours. Mais c'est quel type de fiche? J'ai vu dans un autre post de Jineffine qu'il n'a pas trouvé l'autre moitié de cette fiche pour asiel le montage.
J'ai encore quelques questions:
Je vois trois fils dans la fiche: noir, vert et blanc
Sur le boitier j'ai aussi trois fils: un petit noir, un gros noir (signal?) et un rouge
Comment les brancher?
Et quoi si je ne trouves pas de signal colme PhilGi68? Ou dois je trouver ce signal?
Je viens d'avoir le retour une personne qui travail chez Caterham au montage des cat
Voici se qu'il ma donner comme info sur le montage sur shift light sureshift 2:
Correspondance de la fiche 3 poles (destiner à brancher le shift light caterham sureshift2) qui est sur le faisceau de nos caterham:
Le fil vert de cette fiche => Le positif +
Le fil noir => la masse -
Le fil noir/blanc => signale RPM
Et donc correspondance des 3 fils qui sortent du shift light sureshift2:
Le fil rouge => le positif +
Le fil noir (le petit fil) => la masse -
Le fi noir (LE GROS) => signal rpm
Et du coup en branchant avec ses correspondances , tu n a pas réussi à le faire marcher ?
340R Acid Green