Odb1 s52. 68mm throttle body. Euro maf. 21.5 I injectors. 13lb flywheel. Looks how it should or you think I can get more out of it? Epic tune. I got 2 revisions left
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Open trumpet ms3 s52 vs obd1 epic off the shelf tune
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I wanted to post the same thing a few days ago but forgot. Here is mine for comparison.
http://imgur.com/a/2RsIV
This was with a freshly rebuilt S52 bottom end, fresh S50 top end, 540i MAF, 21.5# Pink Injectors, ebay headers, 2-to-1 2.5" to the back with two straight two mufflers and a Turner Motorsports chip.
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Nice numbers. I think i can get more hp but I don't want to lose all my low end torque. This is a street car So I spend a lot of time in 3k-4500 area
Originally posted by f4tj0n View PostI wanted to post the same thing a few days ago but forgot. Here is mine for comparison.
http://imgur.com/a/2RsIV
This was with a freshly rebuilt S52 bottom end, fresh S50 top end, 540i MAF, 21.5# Pink Injectors, ebay headers, 2-to-1 2.5" to the back with two straight two mufflers and a Turner Motorsports chip.
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Originally posted by richardkeith97 View PostNice numbers. I think i can get more hp but I don't want to lose all my low end torque. This is a street car So I spend a lot of time in 3k-4500 area
Also, I have no idea what the graphs should look like, but at least now I do see that my torque numbers are low-ish in the low end.
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Should make more and why the dip at 5500?
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Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
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OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread
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Don't want to alarm...
I've seen this dip before...make sure (100%) that you do not have 2.8 cams in the motor.
This looks exactly like mine did when I was sold a S50 with 2.8 cams in it.
Ed1988 E30/S50...now with S52; Track
1994 Miata R; ES Solo2
1998 Lexus LX470; Wife (Slee'd anyway)
2002 BMW 530i; A+ Commuter
2002 BMW 325iT; Sport/Premium 5-speed
2011 21' EconoTrailer
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This is what Randy at epic told me.... I'd rather have it like this in a street car though even if this is the case. I love all the low end torque
Originally posted by ed94r View PostDon't want to alarm...
I've seen this dip before...make sure (100%) that you do not have 2.8 cams in the motor.
This looks exactly like mine did when I was sold a S50 with 2.8 cams in it.
Ed
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Originally posted by richardkeith97 View PostThis is what Randy at epic told me.... I'd rather have it like this in a street car though even if this is the case. I love all the low end torque
M52 cams would cause a more dramatic dive after 6k
Check Us out on Facebook
Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
Full Product Line Tuning
OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread
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Originally posted by richardkeith97 View PostThis is what Randy at epic told me.... I'd rather have it like this in a street car though even if this is the case. I love all the low end torque
Check Us out on Facebook
Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
Full Product Line Tuning
OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread
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Originally posted by richardkeith97 View PostThis is what Randy at epic told me.... I'd rather have it like this in a street car though even if this is the case. I love all the low end torque
I'll have to dig up the sheets at home...
Ed1988 E30/S50...now with S52; Track
1994 Miata R; ES Solo2
1998 Lexus LX470; Wife (Slee'd anyway)
2002 BMW 530i; A+ Commuter
2002 BMW 325iT; Sport/Premium 5-speed
2011 21' EconoTrailer
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Originally posted by 328ijunkie View PostAlso, if you turn the vanos off ~600 RPM sooner and power increases significantly and the dip smooths out then this will confirm you have M52 cams.
Anything is possible I guess. It was from a 95 m3 with a Turner chip. No one ever said anything to the previous owner about it being an s52 or having a Turner chip (previous owner was a friend) I noticed the pink injectors and obd2 plug under the starter then realized it was an s52 while doing the swap. I guess I'll find out when I eventually do the cans someday
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This is on a 2.8 with m50 manifold before and after S52 cams for reference....
Check Us out on Facebook
Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
Full Product Line Tuning
OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread
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Originally posted by ed94r View PostWell...It's been a long time (and a new motor) but going from the M52 cams to proper S50 cams, the motor went from 227/226 to 238/230, but that was not the largest gain. The largest gain was around 6800, where the S50 cams were making almost 40 horsepower more. The peaks were not alarmingly different (227 to 238), but 40 horse at 7K is a big deal. The M52's just lay down around 6K, dramatically falling off.
I'll have to dig up the sheets at home...
Ed
Next is vanos and riot racing cams. I'd be curious to see those dyno sheets if you find them
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