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JS
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« on: August 25, 2011, 21:01:10 pm » |
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When was the last time you saw a NEW go fast addition for the IDA that actually works?
At SCC i had the pleasure of testing out some prototype venturies for JPM.
Usually I´m around 176kmh top speed on the 1/4mile. After spending 15 minutes installing the new venturies, I had a top speed of 180,45kmh... No time for testing different jetting setups before the rain came on Sunday, so perhaps there´s even more hp to be found?
Installed one of the old 44mm venturies so you can see the difference. Pretty cool huh?
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Mirco Jufer
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« Reply #1 on: August 25, 2011, 21:05:55 pm » |
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Can you post a pic only from the JPM Inlet please?
Its very interesting!
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JS
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« Reply #2 on: August 25, 2011, 21:20:13 pm » |
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Sure, sorry for the crappy phone camera.  |
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Fasterbrit
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« Reply #3 on: August 25, 2011, 21:38:12 pm » |
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With the JPM venturi do you no longer run the auxiliary venturi?
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JS
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« Reply #4 on: August 25, 2011, 21:43:21 pm » |
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Spot on Matt!
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Fasterbrit
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« Reply #5 on: August 25, 2011, 21:55:34 pm » |
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Ah, that would explain the impressive flow gains. Them there aux vents restrict airflow like mofos! Good old Johannes - he's da man!
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Jesse/DVK
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« Reply #6 on: August 26, 2011, 10:52:30 am » |
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Sounds cool, they are still 44mm? also available in other sizes? Can someone explain why no auxilary vents is an improvement? What does the auxilary vent do in the first place? Trying to learn |
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Der Vollgas Kreuzers
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Jon
Administrator
Hero Member
Posts: 3214
12,3@174km/t at Gardermoen 2008
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« Reply #7 on: August 26, 2011, 11:57:35 am » |
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Sounds cool, they are still 44mm?
That is a interesting question, and should produce a interesting reply. I mean what is a 44? is it a given depression (suction) or just a mm size. I can see some of these babies in my future... |
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Grumpy old men have signatures like this.
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Type1/DVK
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« Reply #8 on: August 26, 2011, 12:14:16 pm » |
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we spotted that in your carbs @scc and were wondering what mod's are done to run it like this... I saw there is a small nozzle where the outlet is? is it? very nice work, run's exellent!
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DDD#8 - 14.74sec @ 1776cc - Member of: DVK ~ Der Vollgas Kreuzers - www.ultimatevw.nl - and racing engines |
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Mirco Jufer
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« Reply #9 on: August 27, 2011, 06:26:38 am » |
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Is it avaiable in 42mm too? Can i order them at JPM?  |
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JS
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« Reply #10 on: August 27, 2011, 14:30:17 pm » |
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No mods are required at all to run these - Brilliant!. Yep, theres a small nozzle that lets the fuel in.
They will be available in different sizes from what I understand, Im sure 42mm. I think Johannes will try to have a few sets for sale on his Dyno Day 15th of october.
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Mirco Jufer
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« Reply #11 on: August 27, 2011, 15:03:56 pm » |
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Thats a bit far away for me...I am from Switzerland.
Can everybody send them to me?
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JS
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« Reply #12 on: August 27, 2011, 17:08:56 pm » |
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Call Johannes at +46 42 15 08 09, he can probably give you information on delivery time, sizes etc.
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TexasTom
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« Reply #13 on: August 27, 2011, 18:55:06 pm » |
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A timely post! I just spoke with Johannes this past week and he mentioned the new parts he's been working on. Seems that there's just a bit more testing and fine tuning he wants to do ... always the perfectionist! I hope he makes a LOT of them! Why would anyone NOT want such an improvement? Especially for 'all out' engines, street or strip ... TxT |
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Work, work, WORK!
Modesty accepted here ...
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Mirco Jufer
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« Reply #14 on: August 28, 2011, 06:37:23 am » |
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Cant wait for these hot Parts... Have everybody more pics? Perhaps from one without the Carb ?  |
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JS
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« Reply #15 on: August 28, 2011, 10:24:47 am » |
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Johannes has asked me kindly not to put pics of the venturies themselves on the web because they are not completely finished. |
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Mirco Jufer
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« Reply #16 on: August 28, 2011, 15:55:47 pm » |
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RFbuilt
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« Reply #17 on: August 28, 2011, 16:07:48 pm » |
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could it be... jpm cnc's a "perfect" or ideal venturi for the ida size? either way.. awesome awesome work and development, though carbs are old compare to efi.. it is fresh to see more developments done to it for improvements vs the "we're stuck with what the bandwagon does and it works" nothing wrong with that but absolutely nothing wrong with moving forward with innovation too!! good job johannes i do hope this offer comes down to include weber 44 idf's as i recently got a pair..  |
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Rasser
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« Reply #18 on: August 30, 2011, 08:48:50 am » |
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How are they on the street? is there enough "suction" to obtain a proper progression from idle to mains when used on the street?
Or are they only to be used on race engines?
Looks clean and simple!
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For a good time, call: 1-800-Cal-look
1955 type1
1966 type2 13w deluxe
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JS
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« Reply #19 on: August 30, 2011, 21:48:24 pm » |
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Starts up and runs just as easily as with the old ones. I haven't had a lot of street miles on these, but the initial impression is very good!
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Bruce
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« Reply #20 on: August 31, 2011, 02:51:49 am » |
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What tubes are you using with them?
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JS
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« Reply #21 on: August 31, 2011, 18:46:39 pm » |
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Bruce, honestly at the SCC I can't remember because we used some that Johannes brought. F22s perhaps? Will find out.
Afterwards I installed my F2s which I have run for some years.
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RFbuilt
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« Reply #22 on: September 06, 2011, 13:30:34 pm » |
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JS let us know of updates when the wizard johannes is done developing or let him know we have people on their toes here hehe hopefully he is also developing for IDF's for me.. and ida's for my buddy |
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ST DRAGN
Full Member
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More Port. More Gas..Kicks Ass...
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« Reply #23 on: September 20, 2011, 20:18:24 pm » |
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When was the last time you saw a NEW go fast addition for the IDA that actually works?
At SCC i had the pleasure of testing out some prototype venturies for JPM.
Usually I´m around 176kmh top speed on the 1/4mile. After spending 15 minutes installing the new venturies, I had a top speed of 180,45kmh... No time for testing different jetting setups before the rain came on Sunday, so perhaps there´s even more hp to be found?
Installed one of the old 44mm venturies so you can see the difference. Pretty cool huh?
Yes, Its very interesting! I see the big improvement on MPH/kmh Just wondering what was your1/4mile E.T. Back to Back time slips? |
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Der Kleiner Panzers
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JS
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« Reply #24 on: September 20, 2011, 21:25:32 pm » |
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Well, it seemed my car chose to not perform ideally on the sticky Gardermoen track. Need to work on my chassis setup.
I got at best a 1,7 60ft. ETs over the weekend was in the 12,1-12,5 range with the best ET on the last run 12,18 if memory serves me correctly.
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ST DRAGN
Full Member
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More Port. More Gas..Kicks Ass...
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« Reply #25 on: September 20, 2011, 21:33:47 pm » |
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Well, it seemed my car chose to not perform ideally on the sticky Gardermoen track. Need to work on my chassis setup.
I got at best a 1,7 60ft. ETs over the weekend was in the 12,1-12,5 range with the best ET on the last run 12,18 if memory serves me correctly.
I was ref to back to back time slips.before and after you made the changes on the prototype venturies.. Sorry, If I miss-lead you.. |
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Der Kleiner Panzers
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markvo
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« Reply #26 on: September 26, 2011, 02:21:12 am » |
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what holds it in place?
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Frallan
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« Reply #27 on: September 26, 2011, 04:53:47 am » |
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A name comes to my mind, annular discharge venturi.
Held in place by the same spring-clip as the regular one, I guess. No need to invent new way of doing it?
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Zach Gomulka
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« Reply #28 on: September 26, 2011, 05:26:19 am » |
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Been a little while since I've been inside an IDA, but I believe the venturi is retained by the auxiliary venturi, which is held in place by a set screw. So if there is no auxiliary venturi...
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Born in the '80s, stuck in the '70s.
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JS
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« Reply #29 on: September 26, 2011, 22:19:31 pm » |
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Centered by the same groove that hold the original. Zach, italian IDA´s don´t have a set screw.
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