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Re: post the dyno results if u can(more) (archive)

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Posted by Roops on January 23, 2002 at 07:19:20:

In Reply to: post the dyno results if u can(more) posted by Darren M on January 23, 2002 at 07:09:46:

There is a lot of discussion about dyno results, so the numbers have to be taken with caution. I had my car dyno'd after my timing chain was done and had 192bhp at the flywheel. Before the Schricks were fitted they did a run as a baseline and I had 193bhp. After the cams were fitted I was seeing 198bhp at the wheels. This is with the car not mapped. Now, the guys were the first admit that the dyno. was acting strangely that day and they were getting spurious results for the flywheel numbers, so hopefully tomorrow all will be well and we will see the results. Generally speaking though the car is loads better in the upper rev ranges and really pulls like mad over 3500rpm.

Roops.

I`m interested in knowing what the improvements are on a std 200bhp engine(if that is what u have got)
Ive heard people mention 225bhp in the past


I have just had my car "Schrick'd". The standard rev limit causes the power to drop off when the rev. limit is hit. Therefore when the car goes in for re-mapping tomorrow, the limit will be raised to take advantage of the cams. Give Nigel at Bexley Motor Works a call, on 0208 304 9797. He has done this a load of times and will be able to give you a definitive answer. I know he is running Schrick's & standard springs and revs his car well past the standard limit with no problems.

Roops

I have Schrick cams 284 inlet and 276 exhaust. Schrick tell me that they are safe to the standard red line but have not explored past that with stock valve springs. I am tentatively revving it to 7,400 rpm but it would happily pull to nearer 7,750 if it was safe. has anyone got any experience of running these cams with standard springs and explored the rev limit (they are 284 degrees vs 264 standard on the inlet 11.5mm of lift vs 10.7mm lift standard, 276 degrees exhaust vs248 standard and 11.4mm lift vs 10.2mm I think) From these figs it is possible that the extra lift is not gained by additional valve acceleration since the duration has been increased. Obviously without a very thorough mathematical analysis of the cam acceleration and 'jerk' it is impossible to take an educated view hence the need for trila and error (I would just rather the error wasn't mine !)

Tks
Adrian






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