What do we have here?
2 problems. 1 I dont think the taper for the counter sink is enough and 2 the bore for the s/c size came out too big. I will be machining another one once U check an dmake sure the holes are in the right spot. I think I'm going to swtich to counter bored holes and run socket headed cap screws. Instead of the flat headed hex screws.
And another problem I cant find that actual thread spec on the throttle body bolts. The spec I've found is 6x20 which must be 6mm by 20 threads per inch since the only standard size 6mm threads are 6x0.6 and 6x1 I think its going to be 6x0.6 and I'm going to tap it to that if we have that in the shop. Else I'll tap it to whatever's close and just buy new bolts.
Once I have this perfected I plan to have the cad file hosted (in multiple formats) so that any J-body owner wanting a cnc'ed throttle body adapter for their MP62 will just have to download the file and bring it to their local machine shop.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
Throttle body bolts are M6X1.0. Looks like a fine piece!
Currently #4 in Ecotec Forced Induction horsepower ratings. 505.8 WHP 414WTQ!!!
Currently 3rd quickest Ecotec on the .org - 10.949 @ 131.50 MPH!!!
Wow that looks sexy! Waiting to see how the final piece turns out!!
It lives!
So 2 bad parts and 3 bad mockups later I now have a working cnc'ed Throttle body adapter. The working one is not shown cause its in the car. This shows the progression left to right, on the very left is the tb adapter that cam in my kit from whoever I bought it from. Unfortunately I couldnt get the taper to work it is not possible to get the bores lined up and what the throttle cable bracket clear the power steering pump. In a minute I will post the cad files for a working one thats the same bore as the throttle body which can be made pretty cheap and then one with the taper which will either require some sort of strange fixturing or a 5th axis.
and then I played around with my phones panoramic mode.
i wonder if there'll be margin rape? Oh and I also laser cut myself a custom tb gasket.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
what program are you running? AutoDesk Inventor?
No, SolidWorks. I cant stand inventor. And my CAM work was done with Esprit, which I hate but its the only CAM program we have that I know how to use. This was also machined on a HAAS Mini Mill. The clear acrylic template pieces were made on the laser cutter that we have (utilizing AutoDesk AutoCAD), the gasket I made was also cut on the laser cutter. I need to figure out if that thing can cut phenolic.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
so what throttle body works with these adapters?
MRThompson (jrthompson) wrote:so what throttle body works with these adapters?
The stock L61 tb. And if there's a request I can very easily open that bore up for anyone running a bored L61 tb.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
is there room to make it fit the ls1 tb? i know tinkles was working on one through another company. but i would rather use something milled out a single peice of aluiminum.
did i also read that you have access to gasket material to make the gaskets for this also?
After doing this I dont believe its is possible to make the ls1 tb clear the power steering pump. with just a single plate. And that product is already sold on ebay for like 85 bucks. I can make gaskets, but since I'm using school machines for all of these things I cant anything. Which is why I've post the cad model up for free.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
lol i didn't know you were using school machines. i have the access the same way. guess i will figure out more on the ls1 tb when i get to get my stuff mounted. thanks for the program.
Not to steal all your thunder, but I had this done a while ago. Also according to you IGS model, your bore is 59.563mm?
I tracked done the original manufacture of the adapters, and had them made to the GM print. As you may be aware the transition from the TB bore to the M62 bore is not linear at all. This is to ensure laminar flow through the adapter. Your adapter will function fine, but your probably creating turbulent flow through the adapter, and into the charger.
This may not be a problem at all, but just a concern. Have you used the FloXpress Analysis Wizard in SolidWorks on your part?
-MD- Enforcer wrote:Cell phone pics....from last group purchase
Leafy wrote:After doing this I dont believe its is possible to make the ls1 tb clear the power steering pump. with just a single plate. And that product is already sold on ebay for like 85 bucks. I can make gaskets, but since I'm using school machines for all of these things I cant anything. Which is why I've post the cad model up for free.
That product will not work on a J-body. It is designed for a delta, and the Throttle Body cables will not work with it. Since Delta's have none, this isn't a concern for them.
MRThompson (jrthompson) wrote:lol i didn't know you were using school machines. i have the access the same way. guess i will figure out more on the ls1 tb when i get to get my stuff mounted. thanks for the program.
Tickles is the only route currently for LS1 sized TBs, because of the clearance issues.
Edited 3 time(s). Last edited Tuesday, February 01, 2011 12:57 PM
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
mike- yes i have seen tinkles project. i know its not finalized to, but is close. i was hoping for a cleaner look. but i know functionality is a key to it also. did u by chance have one of those l61 tb adapters left?
-MD- Enforcer wrote:Not to steal all your thunder, but I had this done a while ago. Also according to you IGS model, your bore is 59.563mm?
I tracked done the original manufacture of the adapters, and had them made to the GM print. As you may be aware the transition from the TB bore to the M62 bore is not linear at all. This is to ensure laminar flow through the adapter. Your adapter will function fine, but your probably creating turbulent flow through the adapter, and into the charger. This may not be a problem at all, but just a concern. Have you used the FloXpress Analysis Wizard in SolidWorks on your part?
-MD- Enforcer wrote:Cell phone pics....from last group purchase
Leafy wrote:After doing this I dont believe its is possible to make the ls1 tb clear the power steering pump. with just a single plate. And that product is already sold on ebay for like 85 bucks. I can make gaskets, but since I'm using school machines for all of these things I cant anything. Which is why I've post the cad model up for free.
That product will not work on a J-body. It is designed for a delta, and the Throttle Body cables will not work with it. Since Delta's have none, this isn't a concern for them.
MRThompson (jrthompson) wrote:lol i didn't know you were using school machines. i have the access the same way. guess i will figure out more on the ls1 tb when i get to get my stuff mounted. thanks for the program.
Tickles is the only route currently for LS1 sized TBs, because of the clearance issues.
Yeah it is actually, 59.5ish mm. I went off the actual bore of the throttle body mating surface and the adapter matches on that side perfeclty. I do realize that the iac cut out makes for an ugly bit of flow as does the lack of taper. I'm considering to eventually make one of the tapered version that matches to the charger exactly eventually, or just remake tinkles style ls1 tb adapter for myself once I learn how to tig better and have the money for an ls1 tb.
I had known you'd done this already and I in no way meant to steal away from your group buys but I was making this for myself since I could do it for much less than the 250 of your group buy (and I dont need that vac port nor care what it looks like). Then I decided I might as well post up the cad files so that anyone needing an adapter yesterday could take the file to their machinist and hopefully get one made rather than having to wait for a group buy to come along. Your's is much better than mine since I dont even specify a surface finish (although on my prototypes its the @!#$ tits). I was also lazy on the prototypes in not really attempting to smooth the iac area very well, I kind of just let the cam software go at it with whats called "free form machining" where it basically kind of tries to do its best to clear out the material without trying too hard and I just threw a 3/8 ball end mill in rather than dropping to a smaller one after to clean it up better. I do think I might all a radius to the back side of the bore to a least try and help with the opening but thats for when its a bit warmer. The flow could be better but even with a perfect taper or bell taper the air will still likely get pissed off by the iac cut out and by that weird notch a the bottom of the charger, and I did a rough calc of the Reynolds number through here and I dont see how it could possibly not be turbulent no matter what you did.
Oh and I did reference to your photos a little bit when working of the hole placement, thanks for that. It helped a good deal.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
It is normally $150 for quality of ten...
I'm sure your will work fine.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
