how many HP can the original cylinder head handle? om617a
how many HP can the original cylinder head handle? om617a
01-27-2011, 04:49 PM
#1
300?
*1984 Mercedes S123 300TD turbodiesel*
*1993 BMW 525tdsT*
*1990 BMW 524 turbodiesel*
*1983 BMW 745iA e23*
*1969 BMW 3.0csl racecar*
Diesel-Wiking
01-27-2011, 04:49 PM #1I just wonder how many horsepower the original cylinder head can handle? without modify it with better inlet&outlet++
300?
*1984 Mercedes S123 300TD turbodiesel*
*1993 BMW 525tdsT*
*1990 BMW 524 turbodiesel*
*1983 BMW 745iA e23*
*1969 BMW 3.0csl racecar*
01-27-2011, 05:14 PM
#2
ForcedInduction
01-27-2011, 05:14 PM
#2
The head is not the limit, the rods are. The 617 has been known to pass 400hp before the internals become external.
01-27-2011, 05:17 PM
#3
(01-27-2011, 05:14 PM)ForcedInduction The head is not the limit, the rods are. The 617 has been known to pass 400hp before the internals become external.
Where can i find some info on a 617 with 400hp?
1987 300D: EGR Delete, ARV Delete, Cold Air Intake...
01-27-2011, 05:22 PM
#5
(01-27-2011, 05:20 PM)ForcedInduction http://www.kolumbus.fi/valtonen.motorsport/index.htm
Darn i was hopeing it was a different car than that.
1987 300D: EGR Delete, ARV Delete, Cold Air Intake...
(01-27-2011, 05:20 PM)ForcedInduction http://www.kolumbus.fi/valtonen.motorsport/index.htm
Darn i was hopeing it was a different car than that.
1987 300D: EGR Delete, ARV Delete, Cold Air Intake...
01-27-2011, 05:57 PM
#6
ForcedInduction
01-27-2011, 05:57 PM
#6
Not many Finns use the 617, the 60x series is too common over there and gets better results with less work.
01-27-2011, 06:30 PM
#7
I'm not shure which engine I shall built on, either 617 or 603, it will be fitted in an 69' modell BMW. I like 617 better, but the 603 could possibly a better choice...however, thank you for the answers. I have to messure a bit on the BMW and think a bit more about it.
This post was last modified: 01-27-2011, 06:31 PM by Diesel-Wiking.
*1984 Mercedes S123 300TD turbodiesel*
*1993 BMW 525tdsT*
*1990 BMW 524 turbodiesel*
*1983 BMW 745iA e23*
*1969 BMW 3.0csl racecar*
Diesel-Wiking
01-27-2011, 06:30 PM #7thanks forced.. cause here in Norway everybody says that the original head is a way too bad to get much horsepower out of it without heavy modifications.
I'm not shure which engine I shall built on, either 617 or 603, it will be fitted in an 69' modell BMW. I like 617 better, but the 603 could possibly a better choice...however, thank you for the answers. I have to messure a bit on the BMW and think a bit more about it.
*1984 Mercedes S123 300TD turbodiesel*
*1993 BMW 525tdsT*
*1990 BMW 524 turbodiesel*
*1983 BMW 745iA e23*
*1969 BMW 3.0csl racecar*
01-27-2011, 07:03 PM
#8
(01-27-2011, 06:30 PM)Diesel-Wiking thanks forced.. cause here in Norway everybody says that the original head is a way too bad to get much horsepower out of it without heavy modifications.
...
I think from visually looking at the head and thinking from an efficiency standpoint, the 617 heads are a hinderance to flow. The actual head is pretty thin. With that design, the ports take a sharp 90 degree turn into and out of the combustion chamber. This sharp turn, no doubt in my mind, will slow down velocity. I think raising the ports and greatly reducing the angle into the combustion chamber would help immensely. But of course, this is my own theory and I have no means to back it up.
.
This post was last modified: 01-27-2011, 07:03 PM by DeliveryValve.
Gota love Mercedes Diesels!
.
DeliveryValve
01-27-2011, 07:03 PM #8(01-27-2011, 06:30 PM)Diesel-Wiking thanks forced.. cause here in Norway everybody says that the original head is a way too bad to get much horsepower out of it without heavy modifications.
...
I think from visually looking at the head and thinking from an efficiency standpoint, the 617 heads are a hinderance to flow. The actual head is pretty thin. With that design, the ports take a sharp 90 degree turn into and out of the combustion chamber. This sharp turn, no doubt in my mind, will slow down velocity. I think raising the ports and greatly reducing the angle into the combustion chamber would help immensely. But of course, this is my own theory and I have no means to back it up.
.
Gota love Mercedes Diesels!
.
01-28-2011, 09:39 AM
#9
(01-27-2011, 05:20 PM)ForcedInduction http://www.kolumbus.fi/valtonen.motorsport/index.htm
Have you seen 400+ dynosheet? All I´ve heard is ~360hp at crank of this. Couple other 350+hp 617's too.
(01-27-2011, 05:20 PM)ForcedInduction http://www.kolumbus.fi/valtonen.motorsport/index.htm
Have you seen 400+ dynosheet? All I´ve heard is ~360hp at crank of this. Couple other 350+hp 617's too.
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