271 Fastech - 496 HO

65 MPH


There is another 271 fastech in our area with 620 HP

doing 82 MPH


The 271 reacts very good on 600 + HP

Here is where the step hull brings its biggest advantage

1997 271 HP500

Bravo 1 1:50 24" Hydromotive

1/3 tank gas, 2 people

502 carb'd - 500hp, have hit 70, non gps, semi chop

the 271 def needs alittle chop to help lift

There is no way that a 271 with a stock 525 runs 72 mph on GPS.

The 1.5 is a major help making them faster, as compared to the stock 1.65.

If you ran 70 on the stock speedo, you are at ~65-66 GPS, at least that is what th edifference was on mine between GPS and speedo.

66 is a legit speed for 500 Horse Power in the 271.

How do u know if u have the 1.5 or the 1.65? Do u loose bottom with the 1.5

I believe that all fastech 271's had the 1.65 with LH prop.

I don't know if you loose low end. Only 271 with a 1.5 that I have been on was 650 HP, and it had no issues. The stock 271 is slow to get on plane at best, even with a 1.65

the slow planing of thje 271 is going to drive me away

All 271 fastechs did come with 1:65 with left hand prop. That is what formula found worked best. I replaced mine with a 1:50 and have been pleased. IMO i did not loose any bottom end but gained 1-2mph at cruise. 500 efi, 1:50 drive with 26 left hand bravo......66.5 gps. 2 people 1/3 tank fuel. Getting ready to drop in 540 so we will see what gains we get

All FASTech's came with 1.65? I can't find serial number on my decal or drive, however the SN# on Flame arrestor is OK092486. Everyone I asked about the drive SN said it was a 1.50. Any other opinions on serial number. Did not mean to hijack thread, just learning more and more about Formula's.