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Jayem
Forums Junkie

Location:
Finland
Registered:
November 2002

My budget quad throttle body project.	Sun, 21 November 2004 03:00

Any body remember these topics? http://forums.toymods.org.au/index.php?t=msg&t h=20269&rid=92&S=a6ede4e494b627b268fba5e92 d060950 http://forums.toymods.org.au/index.php?t=msg&t h=26179&rid=92&S=a6ede4e494b627b268fba5e92 d060950 and http://forums.toymods.org.au/index.php?t=msg&t h=47536&rid=1627&S=729ac8ed27140f6388be7fb 86df6c171&pl_view=&start=0#msg_434444 Well here's some updating: First six pics are pics of my own made ITB's at different stages. It doesn't look much but don't loose your interest yet, scroll down! http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Lappikset1.jpg http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Lappikset2.jpg http://toyotacover.50megs.com/cgi- bin/i/lappikset/Lappikset3.jpg http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Lappikset4.jpg http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Lappikset5.jpg http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Lappikset5.jpg http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Lappikset6.jpg http://toyotacover.50megs.com/cgi-bin/i/lappikset/ Boksit.jpg Here's pic of the fuel and ignition management boxes and the jackass himself. Now we can get to specs. ITB's: These ITB's are for my 3T. Butterflies are 40mm ones and are modified/made from Volvo carbs. Inlet manifold part is made from 3T manifold and 3T rocker cover. I cut the flange from the old carb manifold and welded the 3T rocker cover to the straighened flange. Old spark plug holes perform now as intake runners. Rest of the rocker cover was cut away. This all bolts up nice. Runner is 10cm long and the hole in flange side is 34mm, which is same as 3T inlet channel. Hole in the other end of the runner is 40mm. Throttle bodys were made from Volvo carbs as I stated. I basically cut everything off just leaving 2cm long block with the butterfly in it. I turned a mandrel/arbor/triblet(which is the correct word?) that I used to press bellmouths. Current bell mouths are 10cm long and are made from stainless steel. I was originally going to lathe the bell mouths from aluminum but the copy lathe broke before I get to it. I'm going to try different bell mouth profiles and lenghts. I made butterfly axles are made from silversteel and synchro mechanism is modified from twin carb Saab and Toyota "things" . Balance pipe is seen in pics 1,2 and 5. Balance pipe is house for intake temp sensor idle and fast idle circuits and all the rest vacuum piping(brake booster port, MAP port etc.). Fuel rail is shortened Saab one. I soldered fuel rail back to one piece with silver. Everything is made from either aluminum or stainless steel bar throttle cable "arch" and the synchro mechanism. Electrics and management: Ignition system is MegaJolt(look the link above). For fuel management I use MegaSquirt. Wire harness made from Corona interior harness. Injectors are from 940 Turbo Volvo. First start happened 19.11 which is yesterday at the moment of writing this. So I cant tell yet how this all works. Costs: I'm doing this as cheaply as possible. I'm only a poor student. Full distributorless ignition system cost 86€ (143AUD). MS partial kit was 50USD at the time of ordering. I cant remember what the postage was but anyway, rest of the parts were bought from SP-Elektroniikka ~20€ (~33AUD) Fuel lines including pressure meter cost about 40€ (66AUD). Fuel lines are made from braided Teflon tube. Injectors were über expensive, 200€ (330AUD), but luckily these were renewed and flow tested and adjusted. For some odd reason it's hard to came upon a set of injectors here in Finland. Fuel pressure regulator is FSE one and the fuel pump is Bosch one from K-jet Audi. These both I got for free from my friends, well I turned some bits for them but anyway no money was spend. TPS is Weber one from some Fiat. I got it from wrecker. It cost about 10€ (16AUD). These were the only costs. Every thing else I either made or got free. I havent count the hours that this has taken from me and I dont put price for my own work. BTW. I'm still annoyed because of those damn expensive injectors GRRRR ! Ask more and I try to answer. [Report message to a moderator]

gold28
Forums Junkie

Location:
Madrid - Spain
Registered:
August 2002

Re: My budget quad throttle body project.	Mon, 22 November 2004 06:52

Well Done. You must be really pleased with the results so far. It will be interesting to see how the finished product performs. Did you make all the buterfly linkeages with minimum slop in the bearings cos that could make for some nasty throttling. Anyhoo, I'm impressed [Report message to a moderator]

Jayem
Forums Junkie

Location:
Finland
Registered:
November 2002

Re: My budget quad throttle body project.	Mon, 22 November 2004 14:23

Thanks! There's virtually no slop! I'll be updating this every now and then... BTW. ITB's are designed to be pressurized for later turbo use... [Report message to a moderator]

M.W.P.
Forums Junkie

Location:
Rocky Mountains, Canada
Registered:
May 2002

Re: My budget quad throttle body project.	Mon, 22 November 2004 15:38

Your forgetting the cost of the POR15 you painted it with... that stuff is about $1 per brush stroke Seriously... very nice work. How much of this was made by you, and how much was used off somthing else (ITBs, manifold, fuel rail, trumpets, etc, etc)? [Report message to a moderator]

Jayem
Forums Junkie

Location:
Finland
Registered:
November 2002

Re: My budget quad throttle body project.	Mon, 22 November 2004 23:14

Yeah! Por 15 $$$ I did everything and every part is either modified or made by myself so I guess I can call this 100% own made. [Report message to a moderator]

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