Might be buying a older 357 SR1 Formula(1986). What would be better all around in a 357 SR1 TRS or Bravo 1? The engines will be 454'S 450 HP. Any speed differences or handling with the two? If I redo the transom for bravos I could raise the X-dim! I have newer Bravo drives and transom assemblies or I would need to buy a right hand TRS drive and rebuild the TRS assemblies.
Formula 357 SR1 Bravo or TRS
forcnme
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WOW that pops and the speed you got is very impressive too. Are you sure those mills aren't pushing 600hp for that kind of speed?
I just picked up a 357 TRS. PO said 62mph but the engines have been stroked to 489. Seems to me it should do 65mph but I haven't really worked with it yet.
Your project looks great.
WOW that pops and the speed you got is very impressive too. Are you sure those mills aren't pushing 600hp for that kind of speed?
I just picked up a 357 TRS. PO said 62mph but the engines have been stroked to 489. Seems to me it should do 65mph but I haven't really worked with it yet.
Your project looks great.
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Not real sure what the total HP of the engines are, I have a desktop dyno and it says around 537hp but that is with headers. The engines are 30 over 454's with Merlin heads from the 90's. The pistons are SRP 10 to 1 compression running non ethanol 93 octane. Crane roller 741 (retard 2 degrees) and Crowles roller rockers, Merlin single plane with a Holley 850 with 78 jets up front and 84 in the rear. MSD ignition and Bosch platinum plugs. Stainless marine exhaust with HP 500 tails. My props are Bravo One 24 that are not labbed and have a few small nicks on the leading edge. I do have them spinning inward. If I would have the props labbed I would think I could see a few more MPH. When on plane I barely need to trim the drives maybe 2 clicks on the indicators. I still have some refining to do but out of the box it performs well.
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That higher compression, roller valve train, healthy cam and bravo drives may help that a lot for speed. I have 24P bravo1 props on these TRS but my X-dim is not as good as yours either.
Your project is working out pretty good. Did you keep the TRS around that was on it?
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107 Posts
I do have a few items left. I have one B W transmission, two bell housings w/coolers attached,remote oil filter assemblies,one transom assembly and one left hand drive.
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Great looking boat. Thanks for coming back and posting the updates after all this time....
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