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Ohio Tom (DdK)
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« on: February 01, 2010, 11:53:48 pm » |
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I got the compression ration set at 9.3/1 and got the top end finished off over the weekend. Sunday night, I got to fire it for the first time and spank on the throttle a few times before shutting down to fix a leaky pushrod tube. Check it out.... http://www.youtube.com/watch?v=HM6kLocXETkSupreme Badd Ass... I was just cracking it 1/4 throttle. I saw 5psi spike on the boost gage just revving it like that.... |
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Ohio Tom Simpson. Home of the Killa' Bee.
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vwmann
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Posts: 194
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« Reply #1 on: February 02, 2010, 12:07:15 am » |
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that thing sound awesome
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wheelie bars are no fun
Entzminger Race Engines
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Terry Gaudet
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« Reply #2 on: February 02, 2010, 05:55:03 am » |
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I love the, rump...rump...rump idle of a blower motor. Brings back memories of my dad's top alcohol dragster. Thanks and good luck Tom.
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Canada - Where men are men and sheep are nervous
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Dougzilla
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« Reply #3 on: February 02, 2010, 07:42:50 am » |
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Nice Tom!! Sounds great!!!
Why is your neighbors house for sale? lol
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Silence is golden ...Duct tape is silver.
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chazavw
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« Reply #4 on: February 02, 2010, 10:56:20 am » |
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Dr. Tom performs yet another hardcore heart transplant!!!!
It sounds ready to tear the doors off something!!!
Can't wait to see what it does at the track!!!
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chazavw
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« Reply #5 on: February 02, 2010, 11:13:03 am » |
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What heads did u end up going with?
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HoleShot Photos
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« Reply #6 on: February 02, 2010, 11:36:57 am » |
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Ever heard of a space heater? Not sure who was producing more heat you or the engine  |
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Stephen Hawes
HoleShotPhotos.com
VwRacingNewscom
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ALLNYA
Newbie
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Posts: 17
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« Reply #7 on: February 02, 2010, 01:45:15 pm » |
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sweet  |
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superdrag
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« Reply #8 on: February 02, 2010, 04:30:08 pm » |
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Sounds like awesome throttle response.
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Carol's not grungy, she's bitchin'.
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jersey joe
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« Reply #9 on: February 02, 2010, 08:00:13 pm » |
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Tom, what size blower is on it? It sounds great. I know the DLI units are great for tractor pullers but run out of steam quick. I always wanted to build a bus with one. Gobs of torque.
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PILL IT TO KILL IT !!
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Ohio Tom (DdK)
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« Reply #10 on: February 02, 2010, 09:28:21 pm » |
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It's a 5" Camden blower. I'm using a Bulley's pulleys setup to drive it with.
The DLI serpentine setup will slip.
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Ohio Tom Simpson. Home of the Killa' Bee.
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David Ward
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« Reply #11 on: February 02, 2010, 09:46:41 pm » |
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Bitchin. awesome throttle response. I cracked up seeing the open stinger. Night time.... Neighbors rolling their eyes....., again. |
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Cornpanzers
62 Beetle
63 Single Cab
73 Thing
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flat top
Junior
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« Reply #12 on: February 02, 2010, 10:50:54 pm » |
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Very Cool Tom Can not wait to see it in the Super Bee...
Wayne
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Still playing after all these years......
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schell 59
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« Reply #13 on: February 02, 2010, 11:34:25 pm » |
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little mini big block sound!!!....no cooling I'm assuming...it ran for a while on the vid and didn't look to get to warm.
unreal throttle response she's gonna rip!!!!
good luck with it it's gonna make one great drag motor
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Terry Gaudet
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« Reply #14 on: February 03, 2010, 07:07:09 am » |
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Hey Tim,
I think those white things pointing down on top of the cylinder tins are bilge pumps. Some use these to push more heat up front in air cooled VWs. Am I right Tom?
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Canada - Where men are men and sheep are nervous
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dangerous
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« Reply #15 on: February 03, 2010, 03:21:46 pm » |
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Nice work.
Keep that sucker nice and rich and less than 26 degrees timing.
Should be a rocket!
Wait till you drive it, you will think you have 4664cc not 2332!
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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Temper Tantrum
Newbie
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Posts: 73
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« Reply #16 on: February 03, 2010, 04:29:32 pm » |
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Sounds really good
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Ohio Tom (DdK)
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« Reply #17 on: February 03, 2010, 05:17:37 pm » |
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Yes, the white things are bilge fans. However, I didn't have them hooked up for this test (they are now).
I literally just finished setting up the rocker geometry and adding oil minutes before the video was taken.
You can see the paint baking on the cyls and header.
The coolest thing is the fact that she's not loading up with oil like it used to. I put a 2 stage oil pump on it. One stage pulls vacuum on the blower drain line. This seems to have fixed the oil loading up issue.
Since the video I have fixed a few things and got some more break-in time on it.
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Ohio Tom Simpson. Home of the Killa' Bee.
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schell 59
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« Reply #18 on: February 03, 2010, 08:10:50 pm » |
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bad ass. wondering what those tubes were...pretty cool idea man...it's got my vote
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Miller Brothers
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« Reply #19 on: February 03, 2010, 09:02:22 pm » |
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I too used a CAMDEN SUPERCHARGER. It is the 112" size. That means it puts out 112 cubic inches of air per revolution. A stock
VW engine moves 97 cubic inches of air per revolution. The supercharger was over driven 50 percent.
I put it on several engines, including a bone stock 1600.
"Bone stock" meaning I took the stock engine out of my 73 super beetle, removed the fan housing, cylinder tins, intake manifold, and exhaust, then bolted on the supercharger. (stock heads, cam, cylinders etc.)
It would build 2 lbs of boost at IDLE. and peg a 20 psi gauge the instant the throttle was opened. It had the RUMP..... RUMP....
RUMP idle too. It sounded awesome .
The bone stock engine in a rear engine dragster ran 7.21 @ 93 mph. Launching the car in 2nd gear
and shifting to 3rd. Two speed live axle set up. The weak spots were the clutch (slippage) and valve springs (float).
On another note, I would be careful revving the engine, blipping the throttle, because you can jerk the rotors out of alignment.
I had to send mine to Camden twice to get it aligned. You'll know when they're not aligned by the really bad knocking sounds
from the supercharger, and then looking at the rotors, and seeing all the metal built up on the rotors where they were rubbing.
Mine had the tapered bushings to hold the rotors in place, but yours might not be made the same. I hope yours is better
attached to the shafts than mine was. Camden was supposed to address that issue years ago, and since the company has been
sold, they might have made the necessary improvements.
Excessive engine heat was the main reason for not continuing with the superchargers, but I still have several of them in case,
I decide to pursue supercharging again.
I still have the dragster, but it is now been converted to powerglide and 8 3/4 mopar rear end. Best times with the dragster
with a 2007 cc engine with turbo, 1.19 sixty, 3.35 half track (330ft) 5.71 @ 116mph in the 1/8 mile. Letting off throttle
at the 500 ft mark and coasting thru the lights because it was geared way to short for the eight. It had a 5.13 gear and it
quit pulling at half track, so I let out.
Here is a very old picture of the dragster with the stock 1600 engine and supercharger. You will notice the supercharger is
as long as the engine itself . LOL
Scott
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« Last Edit: February 05, 2010, 08:32:04 pm by Miller Brothers »
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Ohio Tom (DdK)
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« Reply #20 on: February 03, 2010, 11:18:33 pm » |
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Hey Scott, thanks for the info on rotor twisting out of alingment.
I know exactly what you are describing.
I have taken mine apart to re-seal it. In the process I re-aligned the rotors myself.
It sounds like I have the same taperd bushing setup.
I will take care about that.
I plan on taking it apart again to re-bush the shafts.
Maybe I can figure out a way to pin it.
I bougt it used and it had some wear on it. A few more thou of clearance than it should have in the bearings. (aluminum).
The plan is to install bronze bushings and re-size to the worn shaft diameter.
Since I have access to a machine shop, I plan on repairing it myself.
I'm not that impressed with the construction really. Soft steel shaft on plain aluminum bore.
If it becomes too much to try and keep alive, I have a nice turbo I can put on the same motor to make my way to 10's...
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Ohio Tom Simpson. Home of the Killa' Bee.
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mymedusa
Newbie
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Posts: 5
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« Reply #21 on: February 04, 2010, 06:34:03 am » |
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very nice  hope the blower can handle the boost. @scott very nice review about your supercharger experiences just one note: stock engines 1600cc don't move 97 cubic inches per revolution. maybe 30-40% of that , remind in 4 stroke per revolution just 800cc max. and that with about 80-70% efficency (bad intake). must be very beasty to have 2psi at idle very nice. i love it. chris from germany |
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Ohio Tom (DdK)
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« Reply #22 on: February 04, 2010, 07:43:59 pm » |
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Scott. I have a few more questions:
What carb did you use? What jetting, PV setup?
Boost reference?
How did you fab up your intake setup?
Mine is an old bugspray manfold end tubes with a home fabbed' center section that serves as the blower mount.
Did you do something similar?
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Ohio Tom Simpson. Home of the Killa' Bee.
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Miller Brothers
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« Reply #23 on: February 05, 2010, 05:45:11 am » |
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very nice hope the blower can handle the boost. @scott very nice review about your supercharger experiences just one note: stock engines 1600cc don't move 97 cubic inches per revolution. maybe 30-40% of that , remind in 4 stroke per revolution just 800cc max. and that with about 80-70% efficency (bad intake). must be very beasty to have 2psi at idle very nice. i love it. chris from germany hi chris, thanks for the correction. Maybe I should have said, stock VW's have only 97 inches of displacement. LOL but trying to stuff 168 cubic inches of air (112 x 50% overdrive) into 800cc per rev is exciting to say the least. heheee thanks Scott |
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« Last Edit: February 06, 2010, 05:59:08 am by Miller Brothers »
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mymedusa
Newbie
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« Reply #24 on: February 05, 2010, 10:35:04 am » |
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how it sounds...should be hard work for the blower and the engine can you tell me more about the stock engine? was it bone stock "just" the blower? @ tom...friends are arking about your flywheel weight..they can't belive response of that engine |
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vwmann
Junior
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Posts: 194
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« Reply #25 on: February 05, 2010, 04:33:25 pm » |
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where did u get the adapter to put the blower on the motor
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wheelie bars are no fun
Entzminger Race Engines
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Dougzilla
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« Reply #26 on: February 05, 2010, 07:40:32 pm » |
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where did u get the adapter to put the blower on the motor
Tom made it. He's been working this concept for a couple years and it will make power. Way cooler look than a turbo. IMO |
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Silence is golden ...Duct tape is silver.
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Miller Brothers
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« Reply #27 on: February 05, 2010, 07:57:40 pm » |
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Scott. I have a few more questions:
What carb did you use? What jetting, PV setup?
Boost reference?
How did you fab up your intake setup?
Mine is an old bugspray manfold end tubes with a home fabbed' center section that serves as the blower mount.
Did you do something similar?
hey Tom, On the dragster, I used a Holley 850 Alcohol carb. It had no power valve. No boost reference. I had it jetted real fat. I fabbed the manifold myself, using a 3/8" plate and tubing. It's mounted off of the generator tower base and fuel pump base, the upper case bolts, and bell housing bolts. It's pretty stout, as it needs to be able to hold the supercharger in alignment under stress of the belt when in high boost mode. I snapped the 6 ribs belts frequently. If the 6 rib belts didn't break, they would stretch so much that they would slip and superheat the blower pulley. I really had to put some serious tension on the belts to keep them from slipping under high boost. so I fabbed a 10 rib set of pulleys. That helped a lot, but still some slippage at times. I have two different manifolds, one for the Camden supercharger, and one for a B&M supercharger (about the size of a 371 blower). I have manifold ends for the stock ports, and for superflow heads. I am considering selling both units in the near future. I have been out of work for a year now, and some of my play toys might have to go. Scott |
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Miller Brothers
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« Reply #28 on: February 05, 2010, 08:18:03 pm » |
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hey again,
There are some pics of the B&M blower on my dune buggy with mechanical fuel injection and
Vanagon automatic transmission. Belt slippage kept this set up from performing up to it's potential.
I have tried many things the average person would even attempt. LOL
I think it's fun to be different, and any body that knows me, knows I ain't skeered to try, and besides
it's fun to fab things like this.
Scott
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Dave Harryman
Newbie
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« Reply #29 on: February 05, 2010, 10:56:50 pm » |
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here is one of the blown motors I built in the 80's , this one had 911 heads , I had to cut one cyl out of the cams to make it a 4cyl , it is a GMC 4/53 blower , it made 40 lbs of boost and ran straight alky , it was pretty neat , one of the cams turned the ign. and the other turned the hillborn fuel pump  |
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« Last Edit: February 05, 2010, 10:59:42 pm by Dave Harryman »
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Dominick Luppino
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« Reply #30 on: February 05, 2010, 11:04:15 pm » |
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Hey stranger!
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Dave Harryman
Newbie
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« Reply #31 on: February 05, 2010, 11:10:34 pm » |
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how you been Dom
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Ohio Tom (DdK)
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« Reply #32 on: February 05, 2010, 11:18:37 pm » |
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that's cool Scott.
My setup uses a toothed timing belt instead of the serpentine belt.
I got some more time on the motor now and everything seems good to go...
The flywheel is the regular Chromoly 12lber.
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Ohio Tom Simpson. Home of the Killa' Bee.
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Ohio Tom (DdK)
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« Reply #33 on: February 05, 2010, 11:22:43 pm » |
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Holy cow Dave, that's one badd a$$ setup.
Hand welded everything. Very nice work.
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Ohio Tom Simpson. Home of the Killa' Bee.
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fiatdude
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« Reply #34 on: February 05, 2010, 11:26:54 pm » |
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something I use to play with in the way back
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Karman Sutra-needed to get my butt out of the ghia
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