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nzdatman
Re: What is the Max BHP ?
#26
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My A15 with 11.75:1, standard valves,ported head, rally cam got 91hp at the wheels after quite a few events, was starting to smoke on the dyno so probably needed a rebuild. This was an old rolling road type dyno, running on rally tyres.
Some good numbers being thrown around here but unless you've got the cars on the same dyno, same day, same everything comparisons are a bit meaningless I reckon.

Posted on: 2009/8/18 7:04
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1970 1200 coupe A15
1972 1600 original except for nana's sheepskins
1978 B310 SR16VE
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ddgonzal
Re: What is the Max BHP ?
#25
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To estimate flywheel net HP form RWHP, remove 20%. Some say up to 35%.

I would estimate your 115 rear-wheel HP as 95 net HP. Very very good for an A15. Rear-wheel dynos are notoriously inaccurate, so take it all with a grain of salt.

Posted on: 2009/8/17 19:13
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sparkyza1
Re: What is the Max BHP ?
#24
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I got my A15 with std but lightenedand balanced bottom end,cam,head job and daul webers to 115hp at 7200rpm on the fly wheel, how much will it be in wheelhp?

Posted on: 2009/8/17 18:39
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D
Re: What is the Max BHP ?
#23
No life (a.k.a. DattoMaster)
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If you look at ferals a13 with titanium rods and other bits this is understandable
but 80mm bores are hard to swallow for durability

Posted on: 2009/8/17 0:59
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Volodkovich
Re: What is the Max BHP ?
#22
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The TS Cup cars in Japan get around 175hp out of A13's.
I know of a a15 race car in NZ with 200hp.
These would be at the flywheel. The race car here is very competitive and beats vtec civics all the time in ss2000.

Posted on: 2009/8/15 4:55
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D
Re: What is the Max BHP ?
#21
No life (a.k.a. DattoMaster)
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I wonder the durability of such a procedure and if any bore flex occurs?

Posted on: 2009/8/15 4:31
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bige
Re: What is the Max BHP ?
#20
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no1 .050 towards front, no2 .050 towards back, no3 .050 towards front, no4 .050 towards back. thats with a 3.188 (B liner). Got 1 here done (fresh never run bored to 80mm} and block filled top and bottom with approx 60mm water passage.

Posted on: 2009/8/15 4:03
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A.T.E RACE ENGINES: ( " AUST 1 " 2010 ) A15 GO THE DATTOS... 0412 864 741
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D
Re: What is the Max BHP ?
#19
No life (a.k.a. DattoMaster)
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bige have you worked out if offset C sleeving an a14/15 block will net 80mm?

Posted on: 2009/8/15 2:25
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bige
Re: What is the Max BHP ?
#18
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I got one very close to the same figures been in race car 4 seasons untouched approx 60/70 shows still going stong good leakdown results,normally refresh every season 20 shows , change rings /bearings /springs where needed,

Posted on: 2009/8/14 23:29
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A.T.E RACE ENGINES: ( " AUST 1 " 2010 ) A15 GO THE DATTOS... 0412 864 741
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steveo
Re: What is the Max BHP ?
#17
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Wow thats pretty impressive!

Anything thats roughly double or over the standard hp figure is doing pretty well, in such a light car as the 1200 and 1000's are those sort of figures would be mind boggling!

Bige- obvoiously it was a race engine, how long do you think that particular engine would last under race conditions?

Posted on: 2009/8/14 15:03
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