Turbo motor is in!!!!

[DUCKY]

Took it to the lake today for a test ride. Got a few bugs to work out (Oil line blew off, water pressure too high, etc...) but nothing serious. It's weird though, I expected it to idle smoother, but it lopes like a blower motor....? The thing look like a friggin space ship with all the hoses and pipes running everywhere. I have some pics, but not digital. I will post them soon....

[superdave013]

Good deal! So your gonna drive it out to OP6 right?

[Eric455]

you know i dont have a problem with the turbos and the motor ideling funky. its pretty smooth. it has that blower motor feeling. but the sound is no were close. dont you just love it when those turbos spool up?
eric

[vdrivenman]

congrats DUCKY,
watched a twin turbo bbc in a camero make a 183mph pass last week. said they were having soft ware problems or woudda been 200 sounded really wierd, but impressive !

[Eric455]

sounded really wierd, but impressive !
ELABORATE WHAT WAS WIERD ABOUT THE SOUND OF TURBOS.
ERIC

[superdave013]

Eric455:
sounded really wierd, but impressive !
ELABORATE WHAT WAS WIERD ABOUT THE SOUND OF TURBOS.
ERIC I think it's the lack of sound. I watched a turbo'ed hydro run over 200mph and it was so quite. I'm used to hearing big thunder when a 200+mph pass is made. That deal just kinda wisteled a bit.
Eric, yours don't make a kinda funny sound when the boost is up and the wastegates are flowing?

[Unchained]

superdave013
I think it's the lack of sound. I watched a turbo'ed hydro run over
200mph and it was so quiet. I'm used to hearing big thunder when a 200+mph pass is made.
That deal just kinda whistled a bit.
Eric, yours don't make a kinda funny sound when the boost is up and the wastegates are
flowing? [/QB]Dave, you must be talking about the "Fair Warning" boat. I talked to those guys at Red
Bluff.
http://www.dragboats.com/gallery/images/02_07_ASN_3692_628.jpg
Doesn't look like any turbo lag problem here.
They set the record in Blown gas hydro at 200 mph and then switched to BAH.
I believe they ran over 215 mph at Red Bluff.
[ June 18, 2003, 12:09 PM: Message edited by: Unchained ]

[RaysonKid]

The Fair Warning boat has their stuff together.
I have seen it at RedBluff and it always runs strong.
But you get dizzy looking at the engine with all the plumbing and pipes.
And the turbos they are running are HUGE.
NO, No turbo lag in that boat.

[Dentz]

Ducky,
What kind of turbo motor do you have?Boost?HP?Internal goods?

[DUCKY]

I just put it together, and didn't give it more than 1/4 throttle yesterday, so I don't know how the spooling up feels just yet. It's a .030 over 4 bolt 454 Chevy, with inverted dome floating pin pistons. Still has cast crank, and small bolt rods, and tiny port heads, but I am not looking for lots of boost or rpm, so it will be fine. The turbo system is an old PFM deal with Rayjay 301 E10's and a single Holley 950 carb. I have been told that the system is cabable of 20 pounds of boost and 800 hp, but I am shooting for 7psi, and 600hp. We'll see......

[DUCKY]

superdave013:
Good deal! So your gonna drive it out to OP6 right? Maybe, I lost track of the Op6 deal, when and where is it?

[bigkatboat]

Duck, love the pup mug! The real test of how it will run and last is "the cost of the boost"! You want to get the exhaust pressure down as close to the boost pressure as you can. Just like spinning a supercharger really fast with lots of overdrive, turbos give more with less force. Don't worry too much about the small parts as far as long life goes, it's the RPMs that kill the small parts. I have a 1979 chevy dually, I turboed it when new, it ran 221000 miles @ 5lbs, no intercooler, ON THE STOCK MOTOR! Yes the plastic timing gear and the valve guides gave out long before the rods. It also ran 14.78 @ Orange County drag strip in 1981. The major problem that I have found is with high v-drive gears, the motor has too much load under 2000RPMs and the oil pump isn't turning fast enough to keep the "wave action" going on the rod bearings, (durring boost under 2000RPMs) I had to 'slip the prop" or boost up the pump pressure ( so it was real high @ 6000RPMs) Years ago we did a 355 chevy in a 18'2" Sanger Runner, 1.29 gears, single 750 Holley, intercooled, 8lbs boost, 3 blade prop, 104/108 MPH all the time, anywhere. I hope to see you @ Havasu sometime! :cool: