tag:blogger.com,1999:blog-4476758906412725617.post4549798066990309749..comments2023-10-31T03:17:40.803-07:00Comments on Sylva J15 Build Blog: ECU re-mappingtheprisionerhttp://www.blogger.com/profile/02841148045659640547noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-4476758906412725617.post-47794096484850333662013-08-28T02:19:03.228-07:002013-08-28T02:19:03.228-07:00Just FYI, I had an issue with the throttle on my w...Just FYI, I had an issue with the throttle on my westfield. I'm sure you have considered this, but moving the attachment point on the pedal can give it a longer / throw (thus uses more cable). Anyway, possibly the easiest 20bhp you will get :-)<br />Jenkohttps://www.blogger.com/profile/08697922055900230473noreply@blogger.comtag:blogger.com,1999:blog-4476758906412725617.post-57197761920069530572013-08-28T01:37:33.502-07:002013-08-28T01:37:33.502-07:00Return to Sitec (tuners) yesterday confirms my thr...Return to Sitec (tuners) yesterday confirms my throttle is not opening far enough (about 20bhp short). Initial investigations look like it is not immediately simple to increase the range of opening. My first thoughts are to modify the throttle cam on the throttle body. Look for next update to blog and hopefully new power curves.theprisionerhttps://www.blogger.com/profile/02841148045659640547noreply@blogger.comtag:blogger.com,1999:blog-4476758906412725617.post-15689449442500691662013-08-28T01:27:11.062-07:002013-08-28T01:27:11.062-07:00Hi,
I have only two pictures on my blog:
http:...Hi,<br /> I have only two pictures on my blog:<br /><br />http://sylvabuild.blogspot.co.uk/2012/04/trial-engine-fit.html<br /><br />http://sylvabuild.blogspot.co.uk/2013/03/mirrors-exhaust-and-wheels.html<br /><br />The index is always here:<br /><br />http://sylvabuild.blogspot.co.uk/2012/01/sylva-j15-is-kit-car-designed-by-jeremy.html<br /><br />I am always pleased to take more pics of course (as I am pleased with the build). The exhaust manifold was supplied by Jeremy, I had a few issues with that as the engine flange was not flat and leaked. I spent an hour or so on a belt sander and added a thicker gasket. The exhaust can is s/h from a Westfield and has a built in CAT. I got a chap to mate the exhaust can to the manifold (and what a neat job he did). This allowed me to run the engine at an early stage. I could not get the same chap to do the tail section so I fab'd it myself (a much less tricky job). The tail section is removable so I can fully rotate the rear tub for major maintenance activities. If you want more pics etc mail me directly on oddjoblinlithgow@gmail.com any time!theprisionerhttps://www.blogger.com/profile/02841148045659640547noreply@blogger.comtag:blogger.com,1999:blog-4476758906412725617.post-16608970300539214672013-08-27T23:07:42.395-07:002013-08-27T23:07:42.395-07:00Great stuff, and glad you are saying the handling ...Great stuff, and glad you are saying the handling is good...I'm hoping to be on the road next summer but we will see....would love to see a few pics of your exhaust system if possible?<br />Jenkohttps://www.blogger.com/profile/08697922055900230473noreply@blogger.comtag:blogger.com,1999:blog-4476758906412725617.post-33226796966392973002013-08-19T04:23:45.835-07:002013-08-19T04:23:45.835-07:00The plot was where we started from before re-flash...The plot was where we started from before re-flashing the ecu. I took the car on a test drive after they worked their magic and was so excited by the performance I forgot to pick up the torque/bhp curves for that mapping. I am not sure if I can get the plot now as the two chaps in the picture have left the tuning company. I will try of course. I had the thing on a run at the weekend to Oban 226 miles and the fuel consumption was 47/gal. The performance was very good considering I was two up. The performance is not blistering compared to my Westfield SEIW Duratec but the road holding is so much better I recon it will give a good account of itself on the track.<br /><br />There is nothing wrong with the ecu to change ecu's without hastle you need the barrel and key otherwise they are just a lump of glass.<br /><br />According to PumaSpeed the torque curve on that engine/ecu is normal. You can help the torque curve by removing the torque limiter on 1st and second gear (which has been done). I have also had the timing and fuelling changed to improve that part of the curve. The test run to Oban would confirm a much more drivable car with improved low speed torque (2-3K revs).<br /><br />If I want more performance as you say I would have to adopt throttle bodies which I am not going to do. theprisionerhttps://www.blogger.com/profile/02841148045659640547noreply@blogger.comtag:blogger.com,1999:blog-4476758906412725617.post-67659647734055681992013-08-18T12:20:21.959-07:002013-08-18T12:20:21.959-07:00Hi, Paul here fellow j15 builder. Just reading you...Hi, Paul here fellow j15 builder. Just reading your latest blog. Is the published bhp plot the latest or is it old?. I can't work out why the bhp would be so low with that spec engine.....is the VCT system working?. Also the curve seems very lumpy, did they give you a reason for this....interested as I'm also running the puma engine, although I gave up with the ecu from the puma, and have decided to go emerald.....p.s. I still have the puma ecu (from a 2001 car) but not the key and immob sender....any use?.<br /><br />Paul.<br />Jenkohttps://www.blogger.com/profile/08697922055900230473noreply@blogger.com