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NON step 35 Top Speeds

Old 08-14-2015, 07:26 AM
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Default NON step 35 Top Speeds

I'm sure there is a thread on this but ,I just did the top ends on my boat. I went from totally stock 454's including exhaust and did heads ,cams ,intakes ,carbs and exhaust .I did a small roller 575/575 lift any way I'm guessing close to 500 hp. What speed should I be seeing with this hp? Thanks Robert

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Old 08-14-2015, 07:48 AM
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Originally Posted by excalibur82 View Post
I'm sure there is a thread on this but ,I just did the top ends on my boat. I went from totally stock 454's including exhaust and did heads ,cams ,intakes ,carbs and exhaust .I did a small roller 575/575 lift any way I'm guessing close to 500 hp. What speed should I be seeing with this hp? Thanks Robert
How fast did it go before you did the top ends and what were the rpm's at ?
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Old 08-14-2015, 07:57 AM
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I was seeing in the summer like 68/69 at 4800 26 bravo ones
depending on how many people.

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Old 08-14-2015, 08:29 AM
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Originally Posted by excalibur82 View Post
I was seeing in the summer like 68/69 at 4800 26 bravo ones
depending on how many people.
Assuming you have 1:50 gears that's about 13% slip. Try to get the engines spinning 5200-5300. Might have to go to a 25 and you could see 72ish possibly. Then again its a lot of trial and error to see what pushes your boat the best. I think I tried 5 sets before I settled on some.
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Old 08-14-2015, 08:38 AM
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Originally Posted by excalibur82 View Post
I was seeing in the summer like 68/69 at 4800 26 bravo ones
depending on how many people.
That's what it did with the old engines . I'm hoping mid to high 70's with new set up. Just curious what 500 hp should do in it.
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Old 08-14-2015, 09:45 AM
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Originally Posted by excalibur82 View Post
That's what it did with the old engines . I'm hoping mid to high 70's with new set up. Just curious what 500 hp should do in it.
With the right props I think it might go mid 70's , when I was making 625 mine would run right around 80 fresh water slight chop

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Old 08-14-2015, 10:06 AM
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A friend of mine had a single step 35 with hp 500's and it went 77 on gps
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Old 08-14-2015, 10:41 AM
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92 35' with healthy 525's touch over 80 with lite a lite load
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Old 08-14-2015, 11:42 PM
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Originally Posted by barron View Post
92 35' with healthy 525's touch over 80 with lite a lite load
What kind of drives & props?
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Old 08-15-2015, 08:13 AM
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Bravo drives turning in don't remember prop's it' been a while and 3 other boats.
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