MILD THUNDER

iTrader: (3)

Im just curious . I hear all the time, that whipples and procargers simply dont make the heat a roots does. Have you guys done back to back testing , or any intake temperature measuring before making blanket statements?

Anyone ever measured the intake temp of a whipple with no intercooler ? If so, carb or efi? What size whipple? A 2.3, 3.3, 4.0, 5.0, etc? How about procharger? What size procharger, M1, M3, M4? If intercooled, what size core, whos core, what plumbing setup?

Ive only seen myself some roots temperature testing. Talking with other guys, ive heard of efi procharger IAT temps WITH an intercooler, running the same IAT temps as a carbed roots without an intercooler (10-71)

Same applies for a roots. A 177 blower at 115 percent overdrive at 6lbs of boost, is certainly going to make alot more heat, than a large blower at 10 percent under.

At the end of the day, when you compress air you heat it. Without an intercooler, or fuel introduced into the charge, temps can get very hot in the intake. How hot, depends on alot of factors.


Sure, a whipple with good intercooler, plumbed correctly, is a awesome setup, and overall more efficient, not just from an adiabiatic standpoint, but simply can take less power to turn.

MILD THUNDER

iTrader: (3)

I was just talking about some intercooler plumbing last night with Icdedppl. Last week, i messed around in the garage with some water fittings on my intercoolers i plan to install.

I first tested my city water psi, and i had 36psi deadheaded. I then hooked up a 3/4 water line to my water spigot. I filled a bucket at the rate of 450 gallons per hour. I then hooked that line to my intercooler inlet, with a -10 outlet. I measured the same 450 gallon per hour flow rate, with ZERO psi restriction in the core.

I then removed the -10 discharge, and installed a -8 discharge. Flow now went down to 360 gallons per hour, and recorded 10psi restriction in the core housing.

Now, teague recommends a -12 inlet, and TWO -10 outlets for my particular intercooler, with 20psi in the core housing at wot.

What i am getting at here, is my simple 3/4 hose setup, coming from city water supply, was vastly incapable, of getting anywhere near the water flow to the core, that it is capable of flowing. So on the dyno where we recently tested a 1071 roots blown engine, we recorded 112 degrees at 10lbs of boost intake temps. That was with a cheesy garden hose setup hooked to the core, that is not nearly flowing the water , than you can flow, when properly installed in the boat when plumbed correctly, and still had respectable intake temps at 10psi .

ToMorrow44

Put the pickup on the transom, use a Teague Adjustable pickup and run it through a strainer to the innercooler and out a dump, it'll be its own system. The thru hull pickups don't work as well since the bottom of the hull isn't really in contact with the water 100% of the time, so you get pressure spikes (think choppy water skipping along the hull). But the transom is pretty much always in the water so you'll have good constant flow. The adjustable pickup allows you to get it as high as you can while still having good water flow, but decreased drag.

MILD THUNDER

iTrader: (3)

What he said ^^^

Or instal transom pickups for the engines, and run intercoolers off the drive pickups

sutphen 30

I'd go right to the top,,4L whipple kit,efi and forget about it.

snapmorgan

iTrader: (2)

The newer 575's have head gasket issues as well. Mine looked like they were within minutes of failing at 100hrs. They were almost completely burnt through between the cylinders.

CIG3

http://whipplesuperchargers.com/inde...product_id=244

MILD THUNDER

iTrader: (3)

Those are the 6-71/14-71 GMC style replacement whipples. They are bad azz. But, there isn't anything from the merc 575sci, that would bolt to them, except, possibly the throttle bodies. They are a great replacement for a guy wanting to ditch his 8-71, 10-71, etc, and go screw.

Its hard to argue $3750.00 , and be able to bolt it all on in a weekend, for a Dyers kit. Even less if you choose for the satin finish.

Old Navy

Too much money for me.

MILD THUNDER

iTrader: (3)

You and me both.

As far as the dyers kits, I know a few guys here did them, and reported a nice power increase just by bolting the kit on, and not even turning the boost up any further. Those stock little 256 blowers, make alot of heat, and beat the crap out of the air.