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> Standalone ecu for a st205, Worth it?
post Nov 25, 2013 - 8:01 AM
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skogs

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Hi, a workshop is changing the engine in my st205, and they have given me an offer to change the ecu to a haltech stand-alone and remap it for a total of about 900£ extra. Do you think this will be worth it? They will be putting in a Spec stage 3+ clutch while they're at it.

 
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post Sep 18, 2014 - 10:53 PM
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cardshark525

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Technically the mechanic is right. Really shouldn't be below 2k RPM when driving or else pretty much ANY car will bog down.

As far as your AFR... that should be 14.7 unless you're boosting so you are running extremely rich which can cause other problems down the road besides terrible fuel economy and lack of power down low.

The car running on a standalone should react pretty much the same as on the stock ecu up until 3k when you hit boost, and should destroy stock mapping from there to redline.

Under a proper tune you should actually be getting better gas mileage (obviously with normal driving characteristics), then you had before the setup was effectively optimized and it's full potential was realized with the standalone.

This post has been edited by cardshark525: Sep 18, 2014 - 10:58 PM

Posts in this topic
- skogs   Standalone ecu for a st205   Nov 25, 2013 - 8:01 AM
- - bsamps4   That sounds like a really good deal to me!   Nov 25, 2013 - 8:31 AM
- - CELL_PROTOTYPE_X   If you plan to make big power...it's necessary...   Nov 25, 2013 - 9:12 AM
- - malpaso   As offer it is looking really good (price of ECU a...   Nov 25, 2013 - 9:38 AM
- - yellowchinaman   How much HP's do you plan on gaining is a big ...   Nov 25, 2013 - 11:54 AM
- - Trodai   having a standalone Ecu is only worthwhile if you ...   Nov 25, 2013 - 12:59 PM
- - skogs   The mechanic have a really good reputation, and is...   Nov 25, 2013 - 1:29 PM
- - malpaso   Road mapping explains a lot. No need to pay for dy...   Nov 26, 2013 - 4:15 AM
- - skogs   I will probably go for it then. The mechanic recom...   Nov 26, 2013 - 6:52 AM
|- - malpaso   QUOTE (skogs @ Nov 26, 2013 - 12:52 ...   Nov 26, 2013 - 8:27 AM
- - delusionz   just because you haven't heard of it, haltech ...   Nov 30, 2013 - 4:57 PM
- - skogs   There is a guy with a 4wd dyno, but he is insanely...   Dec 1, 2013 - 10:32 AM
- - delusionz   depends how good the tuner is, but in general, sta...   Dec 1, 2013 - 7:49 PM
- - lagos   QUOTE (skogs @ Dec 1, 2013 - 10:32 A...   Dec 1, 2013 - 10:27 PM
- - delusionz   ^-- the difference between st205 tuned and st205 s...   Dec 2, 2013 - 4:57 PM
- - malpaso   In my opinion both guys (lagos and delusionz) are ...   Dec 3, 2013 - 6:30 AM
- - skogs   It seems that some recommend dyno tune, some road ...   Dec 3, 2013 - 7:44 AM
- - pitcelica   You need to understand that a full standalone tuni...   Dec 3, 2013 - 2:26 PM
- - lagos   QUOTE (delusionz @ Dec 2, 2013 - 4:5...   Dec 3, 2013 - 8:35 PM
- - skogs   Finally, the car has been mapped, but i suspect it...   Sep 12, 2014 - 5:12 PM
|- - timbo16   QUOTE (skogs @ Sep 12, 2014 - 5:12 P...   Sep 16, 2014 - 10:31 AM
- - cardshark525   Technically the mechanic is right. Really shouldn...   Sep 18, 2014 - 10:53 PM
- - skogs   I have been working on this myself for a while now...   Sep 21, 2014 - 3:43 PM
- - jbod   The difference between a standalone and factory ec...   Oct 11, 2014 - 5:17 AM


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