Post by kimo on Dec 21, 2005 6:01:38 GMT 10
Hi,
I have bored my throttle body at my friend's machine shop. I have found out the TB is not all the same thickness from top to bottom, it's like thick, less thick, then thinner. Told the guy at the machine to take off 3 mm all the way but he said he can't do it because it's very thin blow so he start to take off like 0.5mm and if you see at the photos there is a big bulk at the end of the TB he took it all the way to the surface, although have told him to take a lot more at the top but he was afraid as hasn't bored TB before, he usually works on cylinder heads, block, pistons, anyway I think he did a good job, as for the back I left it stock like the Spoon one, as a friend told that theory why back part is not bored is that if the ventuli plate is not change, a bigger back will not benefit the air intake flow. Just imagine, wider opening will allow more air to be suck in and with the tapered design it actually create higher pressure of air to the ventuli area(higher air flow), n so how does the bigger opening at the back helps except dispersing the pressure. But again, I'm not saying that the latest experimental mod are no good but have to dyno the cars fitted with both TB to find out the facts. After the work is done I cleaned the TB with air, and used carb cleaner to take off all the carbon deposit, oil. Now the most import part what are the results, will first I didn't didn't feel anything so I reset my ECU, later found that car feels a lot lighter you just to press very little and feel the car is moving fast and I feel it's better high end but still didn't test it, and all that on the stock filter, so with open filter will gain more as it will suck a lot more air. I think the FC will get a little high. The best part of this story how much did I spend. I just spend $5. The machine shop owned my friend they didn't ask anything and the worker worked like 1/2 hour, so I just gave a tip
. the $5 is the cost of the carb cleaner and the transpiration cost to my friend shop, and the worker tip.
Here are the photos, take in consideration it's the first time it has been done and I am sure doesn't look like Spoon TB but again for just $5 and I gained power.
pg.photos.yahoo.com/ph/eskania/album?.dir=4282&.src=ph&store=&prodid=&.done=http%3a//photos.yahoo.com/ph//my_photos
I have bored my throttle body at my friend's machine shop. I have found out the TB is not all the same thickness from top to bottom, it's like thick, less thick, then thinner. Told the guy at the machine to take off 3 mm all the way but he said he can't do it because it's very thin blow so he start to take off like 0.5mm and if you see at the photos there is a big bulk at the end of the TB he took it all the way to the surface, although have told him to take a lot more at the top but he was afraid as hasn't bored TB before, he usually works on cylinder heads, block, pistons, anyway I think he did a good job, as for the back I left it stock like the Spoon one, as a friend told that theory why back part is not bored is that if the ventuli plate is not change, a bigger back will not benefit the air intake flow. Just imagine, wider opening will allow more air to be suck in and with the tapered design it actually create higher pressure of air to the ventuli area(higher air flow), n so how does the bigger opening at the back helps except dispersing the pressure. But again, I'm not saying that the latest experimental mod are no good but have to dyno the cars fitted with both TB to find out the facts. After the work is done I cleaned the TB with air, and used carb cleaner to take off all the carbon deposit, oil. Now the most import part what are the results, will first I didn't didn't feel anything so I reset my ECU, later found that car feels a lot lighter you just to press very little and feel the car is moving fast and I feel it's better high end but still didn't test it, and all that on the stock filter, so with open filter will gain more as it will suck a lot more air. I think the FC will get a little high. The best part of this story how much did I spend. I just spend $5. The machine shop owned my friend they didn't ask anything and the worker worked like 1/2 hour, so I just gave a tip
. the $5 is the cost of the carb cleaner and the transpiration cost to my friend shop, and the worker tip.Here are the photos, take in consideration it's the first time it has been done and I am sure doesn't look like Spoon TB but again for just $5 and I gained power.
pg.photos.yahoo.com/ph/eskania/album?.dir=4282&.src=ph&store=&prodid=&.done=http%3a//photos.yahoo.com/ph//my_photos
