Subject	Re: Do you need an ECU upgrade with these 400+ cams?
Posted by	Tech@EPR on June 10, 2012 at 7:08 PM
	This message has been viewed 192 times.
In Reply To	Do you need an ECU upgrade with these 400+ cams? posted by Z-speed on June 10, 2012 at 05:47 PM
Message	at best if you want to do are freshen on the heads I'd do a valve spring replacement with OEM if you keep the stock cams. Even if you upgrade to the S1s the stock springs will do fine. Issue is with over time the springs become "saggy" inadequate or loose their coil which weakens their seat and open pressures. Replacing the springs will make the engine more responsive RPM wise. Ultimately if you are stock from head to toe...I'd just worry about bolt ons and have fun. Once you start digging into the rest of the engine is when I'd begin to invest in upgraded camshafts. Ep Racing | Create Your Badge
Follow Ups	Anyone with 90-93 JWT Mild 100 Series, S1 Cams (TT and NA) ? - Z-speed 07:19:53 06/10/12 Save your money. For more details contact SZ. - MixManMash 08:02:47 06/10/12 Really? - KongZTT GT28RS MD 08:22:11 06/10/12 Its on the SZ website - ZXoltan 08:39:07 06/10/12 yep - aliaZ 08:44:21 06/10/12 Those cams will not work in your car. - DVDBURN (MD) 09:06:49 06/10/12 correctly setup the 500 + is a better solution (n/m) - ztunerz 16:47:39 06/10/12 waste if you dont change the springs. - ZiNnYc 09:31:24 06/10/12 why would you say that ? (n/m) - ztunerz 16:46:30 06/10/12 what are the chances that they are in spec (n/m) - ZiNnYc 17:57:31 06/10/12 txt me or something... (n/m) - ztunerz 19:55:39 06/10/12 Well plenty of people are hitting 400+ on stock cams (n/m) - BlackholeZ 12:15:46 06/10/12 Re: Save your money. For more details contact SZ. - Tech@EPR 09:42:39 06/10/12 Any advantage to running upgraded springs on stock cams? - ZXoltan 09:51:23 06/10/12 It can be done. - Woody75 (Denver) 10:04:51 06/10/12 exactly !! (n/m) - ztunerz 16:48:34 06/10/12 Re: It can be done. - Tech@EPR 19:03:57 06/10/12 wow saggy springs - thats technical. (n/m) - ztunerz 16:45:59 06/10/12 Re: wow saggy springs - thats technical. - Tech@EPR 19:02:36 06/10/12 more detail would be nice - hard data is always good (n/m) - ztunerz 19:54:35 06/10/12 Re: more detail would be nice - hard data is always good - Tech@EPR 19:56:12 06/10/12 i know the answers, i was being snide because you seem - ztunerz 20:21:04 06/10/12 Re: i know the answers, i was being snide because you seem - Tech@EPR 20:31:52 06/10/12 What - you can't say that stock springs go out of - ztunerz 21:10:12 06/10/12 Re: What - you can't say that stock springs go out of - Tech@EPR 23:13:04 06/10/12 LOL here we go - whos's D@#$ is bigger ? Exactly - ztunerz 00:10:39 06/11/12 Re: LOL here we go - whos's D@#$ is bigger ? Exactly - Tech@EPR 01:27:03 06/11/12 >>> - ztunerz 10:54:44 06/11/12 Re: >>> - Tech@EPR 02:09:46 06/12/12 Springs should really be replaced no matter what they say... - zboost(tx) 20:13:56 06/10/12 Do you need an ECU upgrade with these 400+ cams? - Z-speed 17:47:21 06/10/12 Re: Do you need an ECU upgrade with these 400+ cams? - Tech@EPR 19:08:37 06/10/12 What do you mean by "more responsive RPM-wise"? - ZXoltan 19:51:09 06/10/12 Any time you do a valve job you should be checking spring - ztunerz 19:58:07 06/10/12 Re: Any time you do a valve job you should be checking spring - Tech@EPR 20:01:19 06/10/12 Re: What do you mean by "more responsive RPM-wise"? - Tech@EPR 19:59:42 06/10/12 No, but with any changes it is always worthwhile to get a - MixManMash 07:50:32 06/11/12
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