blockhead_rich
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posted on 4/5/11 at 10:51 PM |
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What BHP should I get from my ST 20v 4age?
I've got a Silvertop 20v 4age, in my Velocity. The engine is all pretty standard, new rings, honed bores, new bearings, seals, etc. Omex 600
ECU, standard cams, 4 into 1 tubular exhaust and standard Toyota inlet trumpets (the plastic ones that are in the standard airbox which I binned). My
car is at ATSPEED after it's RR set up session (I'm picking it up tomorrow) and I'm told it only made about 125 BHP @ the wheels
which seems a little low (ATSPEED also expected more).
Anyone have any ideas?? ETC??
Rich
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rick q
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posted on 4/5/11 at 11:19 PM |
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There's a huge variation between dynos so the results from one can't be compared to another. I'm also told that simple things like
keeping tyre pressures high will raise the result [less rolling resistance].
Having said that, my Silvertop which is essentially stock rebuilt with mild cams [no peak power increase just a bit more torque down low] running with
a Haltech gave me 127hp at the wheels - same result as yours.
That figure is generally considered the right result for a "stock" engine at the wheels.
Having said that, they still go like the clappers and are the engine of choice because of their high revving nature in my opinion.
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atspeed racing
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posted on 5/5/11 at 05:59 AM |
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Interesting Mr. Blockhead_rich. We did have concerns that there was a problem with the engine, but looks as if the power is correct.
We was expecting more than the results we got.
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flak monkey
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posted on 5/5/11 at 06:47 AM |
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Well thats about 150bhp at the flywheel, so sounds about right to me for a basically standard engine...
Sera
http://www.motosera.com
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scutter
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posted on 5/5/11 at 08:53 AM |
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That sounds about right, my ST170 engine made 190 at the engine and 151 at the rear wheels.
ATB Dan.
The less I worked, the more i liked it.
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