Dave Harryman
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« Reply #70 on: February 13, 2010, 10:43:22 pm » |
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ah the good old days , yep that was Dave Lowenstein , he got a little loose on that pass lol....... , hey Tom , we will keep your thread around until spring for ya then we can get back on topic
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David Ward
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« Reply #71 on: February 15, 2010, 10:06:02 pm » |
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one more time tom sorry. i posted this picture dave a few years back this is with the 48 eng still ultra impressive for that day your buddy that use to drive the white i think 68 with 8 spokes standing there i think that was the same day he did a 180 on the track with his 6or 7in firestones with his turboset up. the county those were deffenetly good days. JD .
That's it! Centerlines, mufflers, yanking the wheels. That's what I remember. The car was tuff!!!  Thanks Jeff for posting that shot. |
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Cornpanzers
62 Beetle
63 Single Cab
73 Thing
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Dave Harryman
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« Reply #72 on: February 15, 2010, 11:27:25 pm » |
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yeah. Jeff , thanks for the pic , I looked at all your pics and you have some cool shots of some great cars from back then
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Tom Simon
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« Reply #73 on: February 18, 2010, 05:38:27 pm » |
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zoomies work on blown motors because with the boost there is no need for the scavanging effect of a collector...
that's my understanding... a friend of mine tried a set of traditional 4-1 headers for one event on his (very successful) blown 400cuin small block chevy they ran in NHRA Top Alcohol Dragster. They didn't notice a difference, other than it sounded WEIRD and the facial expressions of the other racers hehe |
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Krylon Monster
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« Reply #74 on: February 18, 2010, 09:37:43 pm » |
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There is a blown pro mod in ADRL that I saw last year had each zoomie coming into a collector. Looked weird but apparently it ran pretty well
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New Jersey- Home of the Fist Pumping Dancing Guido
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Frallan2
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« Reply #75 on: February 19, 2010, 07:33:32 am » |
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I just read an article in magazine called Race Engine Technology. It covers pro racing of all characters from Formula 1, Nascar to dirt racing.
It has a very extensive special on Top Fuel motorcycle racing.
In that arcticle they clearly say that for their nitromonsters, it is all about being able to put the largest possible diameter.
It is for them not a tuning device.
Now nitro behaves a "cubic dimension" different from gasoline or alcohol.
The fuel mix in weight is something like 3:1 and still burns extensively as it leaves the engine.
Just wanted to share that statement.
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fiatdude
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« Reply #76 on: February 19, 2010, 11:51:54 am » |
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An old Brilliant Dude once offered this explaniation to me about octane and different fuels for internal combustion motors--
He basically said that you take 1 oz of fuel and measure the length of time it takes to burn and that is it's octane rating -- the longer it takes the higher the rating -- (Higher compression rapidly excelerates this process)
Also the longer it takes to burn the more "vapors" it produces and the more "work" it can perform. One of the reasons a diesel engine runs at a lower rpm is that diesel fuel takes longer to burn and transmit the energy to the piston.
Nitro is a weird fuel where it has the explosive property of gasoline -- where it is able to immediatly transfer energy -- yet it has a residual -- or a tapering off -- burn time where it will burn for a longer period hence the flames out the zoomies
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Karman Sutra-needed to get my butt out of the ghia
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Frallan2
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« Reply #77 on: February 21, 2010, 08:52:42 am » |
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Right on.
Ignition timing on a TF dragster can be 50 degrees or even more.
That is in spite of twin plugs, the high revs.......totally different animals. A lot of BTU but slow burning compared to gasoline. (modified as I had written without thinking)
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« Last Edit: February 21, 2010, 08:24:23 pm by Frallan2 »
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jetmanoo1
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« Reply #78 on: February 21, 2010, 12:33:08 pm » |
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wow nice to see dave on here i was just a kid in cypress when one day we were talking crap at daves house and i said his car was slow he said take it for a pass down the street and make sure you hit the bottle so i did and i can say i never talked crap again
Randy
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« Last Edit: February 21, 2010, 12:35:06 pm by jetmanoo1 »
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jetmanoo1
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« Reply #79 on: February 21, 2010, 12:37:20 pm » |
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dave lets bulid a car and go racing?
and sorry tom for the hijack your motor sounds good
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jetmanoo1
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« Reply #80 on: February 21, 2010, 12:45:15 pm » |
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back in the day
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Dave Harryman
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« Reply #81 on: February 21, 2010, 11:11:01 pm » |
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that's my understanding... a friend of mine tried a set of traditional 4-1 headers for one event on his (very successful) blown 400cuin small block chevy they ran in NHRA Top Alcohol Dragster. They didn't notice a difference, other than it sounded WEIRD and the facial expressions of the other racers hehe
I think I have seen the dragster you are taliking about run at pomona about ten years ago , that thing would turn the R'S |
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Tom Simon
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« Reply #82 on: February 22, 2010, 02:54:54 pm » |
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I think I have seen the dragster you are taliking about run at pomona about ten years ago , that thing would turn the R'S
that timeframe seems about right, Dave, they are (were) pretty well known in TAD for winning NHRA div. 7 and National championships, 5 of 'em I think. It seems the top guys are always thiking outside the box, but aren't afraid to give up on an idea if it doesn't work out. |
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Ohio Tom (DdK)
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« Reply #83 on: March 30, 2010, 09:36:59 pm » |
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Update...... I have installed new heads (CB Elim 2000 with VW650 springs). Here is a video of it in the car. http://www.youtube.com/watch?v=2-N5PgyKTcQJust button up a few things and take it for a test drive down the road.... The track is open this Saturday. I'm gonna try to test it.... |
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Ohio Tom Simpson. Home of the Killa' Bee.
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KAFUR1
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« Reply #84 on: March 30, 2010, 09:43:54 pm » |
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thats kool youhave little man right there with you!!!!!!
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Ohio Tom (DdK)
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« Reply #85 on: March 30, 2010, 09:59:11 pm » |
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Yeah, he loves the loud engines.. Rummmm, Rummmm he says.
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Ohio Tom Simpson. Home of the Killa' Bee.
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Dave Conklin (Cornpanzers)
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« Reply #86 on: April 01, 2010, 08:31:35 am » |
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Dood, that is sooooo cool! |
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Cornpanzers!
67 Turbo Beetle
70 911 "S"
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David Ward
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« Reply #87 on: April 01, 2010, 10:03:26 pm » |
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Tom, let us kno whow it goes this weekend. That is wicked!!! |
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Cornpanzers
62 Beetle
63 Single Cab
73 Thing
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KAFUR1
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« Reply #88 on: April 02, 2010, 03:06:05 am » |
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Dood, that is sooooo cool! Man I cant wait tell my little man gets a little older he is about to turn 2. Good times for sure good famley time too.  |
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dcuplover
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« Reply #89 on: April 02, 2010, 08:20:27 pm » |
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already have my 2 yr old little girl driving/steering my 1991 DOKA. Every time in the garage she wants to ride my motard or race bikes.
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Ohio Tom (DdK)
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« Reply #90 on: April 02, 2010, 11:13:27 pm » |
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OK, I have been running the car down the road and back for the last few days just to try and get some initial tunning. I found out my fuel pump was not delivering what it should be. I changed that and upped the jetting over the last few days.
Today, I ran really well. I rolled on the gas at abouit 3,000rpm in 2nd gear. I saw the boost gage climb to 9psi before short shifting to 3rd.
At which point it lit up the DOT's and went sideways. I had to lift.
The track will be open tomorrow so I will take it for some test and tune action and we shall see what's up.....
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Ohio Tom Simpson. Home of the Killa' Bee.
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Ohio Tom (DdK)
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« Reply #91 on: April 03, 2010, 09:25:12 pm » |
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Got back from the track a few hrs ago.
What a day. This was the opening day for dragway 42 and there were a ton of cars there.
The track crew worked well and got cars down the track fast like.
Didn't have to wait for long at all once I rolled to staging lanes.
First pass, it was clear that we were still too lean. I launched at 5,400rpm to be safe. It nosed over and didn't straighten out until 3rd gear.
Ran thru 12.54 at 106mph.
Went up a jet size on the secondaries. That made an improvement ran 12.35 at 107.
Went another step up and ran a 12.31 at 108mph.
Seeing that we were still lean, I upped the secondary jets 3sizes.
Fell on it's face out of the hole, I thought it was too rich at that point, but as it turns out, my battery charger wasn't working worth a darn and battery voltage was dropping all day long. By the 4th pass, it was affecting how the motor ran.
5th pass was the same thing and the 6th pass, I couldn't even get it re-started after pulling up to staging lanes.
I went out an bought a new 25A battery charger today.
All in all, I'm happy that it's running down the track and showing improvements with the jet changes.
I managed to read the boost gage at 16psi right before the shift light.
The funny thing is, it sure doens't feel like 16psi.
I'm hoping that we just need to go up a few more jet sizes to get it right.
If that doesn't do it, then I know that my home made "holley bug spray" end manafolds are too small.
I kind of wondered if they would cause problems.
The way the blower works, the higher the rpm, the more boost it makes. But, the powerband doesn't follow the boost.
It seems to go flat at 7,000rpm. I guess I need to fab up a custom end manafold setup that will flow match the heads.
The motor checks out OK. Nothing in the oil filter. and she's dry as can be. I'm very pleased with that.
The belt drive looks fine. No issues with that at all.
However, I know that there's more work to be done.
I''m very happy to see 16psi on the boost gage. This means that whatever the issue, i can work thru it and get the power where I
expect it to be.
Hopeing for an honest 250-300hp. 16psi on a 2332 should get me there..?!? Right?
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Ohio Tom Simpson. Home of the Killa' Bee.
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Frallan2
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« Reply #92 on: April 04, 2010, 12:08:08 am » |
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Fantastic!
You have acomplished quite a lot in short time and with good skills.
Be proud.
Good spark (a good working generator, good basic ignition) and a stable fuel supply will get you running even quicker.
Thanks for your well detailed shring too.
Fredrik Frallan
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Ohio Tom (DdK)
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« Reply #93 on: April 13, 2010, 11:07:45 pm » |
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Ohio Tom Simpson. Home of the Killa' Bee.
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Ohio Tom (DdK)
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« Reply #95 on: May 12, 2010, 08:39:08 pm » |
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Let me know if you can't view these links...
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Ohio Tom Simpson. Home of the Killa' Bee.
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Alexander_Monday
Guest
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« Reply #96 on: May 12, 2010, 09:10:05 pm » |
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Out of curiosity, I assume the plenum boxes were added to alleviate the less than desirable results. What is the thinking involved? I was contemplating some form of plenums above the cylinder heads in addition to the main plenum in the center after my inter-cooler. More for piping design, due to the fact I can't seem to get the pipes I want in the diameter and radius of bend I need, but I would be interested if there is an advantage besides just convenience.
Glad to see you have some form of pop off now. As I mentioned in a different forum, I was concerned about going to a ribbed belt drive without a safety release mechanism of some sort to save the blower in case of a sneeze.
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Ohio Tom (DdK)
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« Reply #97 on: May 12, 2010, 09:34:57 pm » |
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If you look at the early photos of the motor. I was using some old bugspray manafold ends. (this was only a temporary solution just to test the whole idea.
The tube size is only about 1" each runner. And they were way long.
So, my thinking was 2 things. Use some intake manafolds that will flow more air since the heads are pretty nice. My buddy donated a nice set of DCNF manafols that were the perfect height.
And, the large boxes will act like a Plenum. A plenum allows for a larg volume of air to be compressed, sitting and waiting for an intake valve to open.
this will make sure that all the boost makes it out to the valves.
A plenum aint so good for low end drivability with a drawthru setup, but this a race only engine anyways.
The motor would continue to increas boost thru the rpm range but hp/tq fell flat at about 6,000rpm.
The motor is bult for 8,000rpm.
I figured that if she's falling flat, but the boost gage keeps climbing, it must be intake restricted.
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« Last Edit: May 12, 2010, 09:37:42 pm by Ohio Tom (DdK) »
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Ohio Tom Simpson. Home of the Killa' Bee.
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dangerous
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« Reply #98 on: May 13, 2010, 12:00:16 am » |
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Hi Tom, looks like a good upgrade.
Make sure those float bowls are staying full or that it is rich enough on the top end.
Both can do as you describe.
What cam did you go for?
Actually even small cams can run higher rpm than normally, under boost, so I doubt that is the prob.
Unles the inlet springs are struggling.(gotta add some tension with boost on the back of the valve).
I love waching that video where you have a satisfied smile at about 1.17.
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« Last Edit: May 17, 2010, 03:49:53 pm by dangerous »
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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fiatdude
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« Reply #99 on: May 13, 2010, 12:35:35 am » |
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run 2 boost gagues and put the sensor for the second in the runners right before the heads and see if there is a drop -- I bet there isn't though
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Karman Sutra-needed to get my butt out of the ghia
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Ohio Tom (DdK)
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« Reply #100 on: May 13, 2010, 09:17:59 pm » |
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Cam is FK-89 with CB L/W lifters.
Heads aer Elim 2000's with 44 X 38 valves with VW650 springs. Seat pressure is about 170-175.
Pauter roller rockers.
I thought about dual boost gages if the problem persists. I don't thing it will thou.
It's night and day runner and plenum volume increase.
I did in-fact find that my fuel pump was not doing it's job very well.
I went to drain the tank and fuel was just barley running out. Too about 2 min to fill a gal container.
I recently switch fuel pumps and now she fills up the gal bottle in a few seconds.
That should help things too....
Can't wait to get it back in the car...
That will be in June...
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Ohio Tom Simpson. Home of the Killa' Bee.
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dangerous
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« Reply #101 on: May 23, 2010, 04:24:24 pm » |
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Is it June yet?
haha.
Can't wait!
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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mymedusa
Newbie
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Posts: 5
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« Reply #102 on: May 29, 2010, 01:07:15 pm » |
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are there some news tom? my tiny 1192cc 36hp with single port heads (35,5mmx32mm)is now updated with blower and my biggest blowerpulley. what about cam? is yours a split? my is intake 282° 11,9mm valvelift exhaust 290° 12,3mm lvalvelift 112° lobe messured at 0.018" its my own cam...but i dont know if it is enough split...we will see how it runs. http://www.youtube.com/watch?v=YbJr_zlifeM |
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Ohio Tom (DdK)
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« Reply #103 on: May 30, 2010, 10:35:01 pm » |
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No new news yet.
I just got back from my first race and I have 1 week to change the motor out.
Your setup looks interesting. Lots work in that.
You made it all fit very well in there.
No special cams in my motor.
Just the normal FK-89/CB 2298 cam I put in all my race motors.
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Ohio Tom Simpson. Home of the Killa' Bee.
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dangerous
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« Reply #104 on: July 07, 2010, 03:54:00 pm » |
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Are we there yet?
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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