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porschefile2010 |
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#1
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Member ![]() ![]() Group: Members Posts: 228 Joined: 26-May 11 From: Whangaparaoa, New Zealand Member No.: 13,118 Region Association: Australia and New Zealand ![]() |
So, we finally have the rebuilt engine back in the car and we decided to tune it on a "rolling road" to make sure we got the mixture right.
So this is a 75 2.0 with standard FI and no emmissions gear on it. I had sort of hoped for around 75hp at the wheels but it has come out at 57hp rwhp. Engine has new AA pistons and cylinders and the standard 2.0 heads so does this sort of number sound right and if it's way short what could be the problem. Also, will it get better as the new pistons settle in. I go get the car on Friday so will put some pics up then |
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porschefile2010 |
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#2
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Member ![]() ![]() Group: Members Posts: 228 Joined: 26-May 11 From: Whangaparaoa, New Zealand Member No.: 13,118 Region Association: Australia and New Zealand ![]() |
Just picking up on Geoff's point early on about pistons. I used the AA european flat tops. So they aren't dished and CR should be ok. I pick the car up this arvo so will speak to the guy who rebuilt the engine for me.
He said he had been very particular to check and recheck TDC and timing so I am hoping that's ok. The other thing of course is how accurate thr machine is but 57 seems at least 10-15 hp off the mark. they might have left the handbrake on! |
SirAndy |
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#3
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Resident German ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 41,707 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California ![]() |
57 seems at least 10-15 hp off the mark. More like 30+ off the mark ... (IMG:style_emoticons/default/popcorn[1].gif) |
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Lo-Fi Version | Time is now: 26th June 2024 - 05:56 AM |
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