hotlavey

Rockie, The boat is now at Havasu with Bernie. I had a chance to touch the new blower as it is ready to be installed. Pretty neat. The first thing he did while I was there was to pull out the ECU and UPS it to Whipple. Let the games begin!

Tom

hotlavey

I ran the Whipple at Havasu yesterday(Monday). It ran 83-85 at 4750 so the 30" is a little too large. Lavey is loaning me a 28 to try next. Mid-range on this puppy is fantastic, even with the 30". It jumped from 50 to 80 mph in a heart beat- At 80 I was turning4200-cruising speed- Amazing. It will be interesting to compare the speed/rpm's between the two props.

28Eliminator

All right. That is the fun part.
Actually you are probably right on with the 30-prop. If you lab finish it, you will be right around 5100 rpm's. Your slip #'s are pretty good too. Assuming your tach is right you are running about 7% slip. Try the 28 and see how it does. I have tried both and the 30 is a little faster, but planing and acceleration is better with the 28. How much boost are you running?
Glad to hear it's running good.

hotlavey

Rock,

I'm running about 6lbs boost according to Bernie. To be honest, I didn't look at the boost gauge when I was running it. I was too stoked on the feel of the boat and the speed/rpm's. Duh! I should have taken a peek at it. I'll certainly check it next time as the first time excitement has now subsided somewhat. What a kick!
My prop guy said he could probably get another 250 RPM's out of the prop but that I should give the 28 a try, which I will. Where I run the boat, top speed really isn't as important as mid range. I'm on the Parker strip most of the time, with a visit to Havasu on occasion. No poker runs except at Lake Mead at our yearly regatta.

Tom

Grog

hotlavey -

I finally got my boat back from a very well known performance shop (referred to as XYZ marine) after having a Whipplecharger installed on my 271 Formula Fastech 502MPI. I took it to them because I wanted it done right. Whipple implies that this is a weekend job which we all know is a bunch of BS for most of us. For an expert, maybe it should take say...4-5 days at most. XYZ promised me a one week turn-around. THEY HAD MY BOAT FOR 5 #*&#@*% WEEKS!!!!!!! Basically, from the time they had my boat and my cc#, I felt I was getting screwed. They did redo the heads so let's give them an extra week for that. I know they had some complications too with a leaky head gasket after the first assembly attempt. Everything seems to be running right so I guess the did it right.

Now the good part. I am still playing with propellers but even with my stock B1 26P, the acceleration is awesome! Throttle-up propellers is sending me a Hydromotive P5 26P to try (Julie at TU rocks!). Looking forward to see how much my top end has improved.

I usually have the attitude that "if you want it done right, do it yourself" but if I had to do it all over again, I would endure the frustration of 5 weeks without my boat, and numerous unreturned phone and let someone experienced do it (not necessarily XYZ). I think Whipple is an awesome system if done right the first time....or can be a total nightmare if not.

hotlavey

Grog,

Keep me posted on your prop testing. I'm in the middle of doing that now. It only took a week for Bernie(retired Whipple person) to do my install, complete with gauges, water and fuel bypass, etc. Ran flawlessly the first time out, I was just propped wrong.
Keep in touch.

Tom

tomcat

hotlavey: Your quoted speed and RPM numbers are almost exactly what you would expect with the prop change, but you should be able to spin the 30 a lot higher. You said 81 mph before and I would think you should be 95+mph now. If the midrange acceleration is good but you can't get past 4750 with the Bravo 30, maybe something else is holding you back. I trust that you are checking fuel pressure and plugs. Good luck, let us know!

Tom

hotlavey

Tom

Fuel pressure was right on as was water temp. I did not have my GPS on the boat when I did this first run so I am relying on the boat speedo which indicated somewhere between 83-85(bouncing). When I GPS'd at 81 prior to the Whipple I really air'd the boat out and was doing a little chine-walking and porpoising. This last run was done a little more safely and conservatively. Much more comfortable. I was told going in that the 30 may be a little tall and the 28 would be the one- I think that will be correct. We will soon find out.

Tom

If you have spare cash, you don't own a boat!

jgomez

Grog, Have got a 26p five blade labbed hydro prop for sale e-mail me at [email protected] for details

hotlavey

Tom,

Just returned from the River at Parker,Az. There was no wind, no boats, and mirror smooth water and a temp. of 80. I ran my 30" re-worked prop. GPS'd at 84 at 5000. I was hoping for more. I had 3 people in the boat, 1/4 tank of fuel, and a relatively empty ice-chest. It was still climbing, probably could have run 85. I was running with one tab down a touch to level the boat as it does torque down on the left side a little. Speedo(Gaffrig) indicated 90- boy, are those things inaccurate.
Actually, I guess the speed isn't bad for a 29' deep-v, but I will try a 28' next time out, just for fun. Mid-range is awesome, even with the 30".