Shaner S3 Rocks!!!
Shaner S3 Rocks!!! Just installed the Shaner S3 that I bought from a member here. That tb is a work of 
art!!!! You CAN feel the difference up top and throttle response is a bit more crisp. Looks like it was CNC'd. If you don't have one yet it's the best money spent on a throttle body! It'll really help when I do the cam next month.
art!!!! You CAN feel the difference up top and throttle response is a bit more crisp. Looks like it was CNC'd. If you don't have one yet it's the best money spent on a throttle body! It'll really help when I do the cam next month. 
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Originally Posted by FIREHAWK#608
Just installed the Shaner S3 that I bought from a member here. That tb is a work of art!!!! You CAN feel the difference up top and throttle response is a bit more crisp. Looks like it was CNC'd. If you don't have one yet it's the best money spent on a throttle body! It'll really help when I do the cam next month.
art!!!! You CAN feel the difference up top and throttle response is a bit more crisp. Looks like it was CNC'd. If you don't have one yet it's the best money spent on a throttle body! It'll really help when I do the cam next month.I just installed one on my H/C C5. I dynoed before and after. I got 7rwhp and 9rwtq...
The only bad part about it was that Shaner didn't do the half shaft mod. I traded my stock one for the S3 plus $100. The seller was putting his car back to stock to sell. I didn't port the stock, but I previously did a clean job on the half shaft. When I got the S3 I swapped the shaft for the one I already did and THAT made it "perfect" 
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Originally Posted by Orange Peel
What's the half shaft mod? I ported my own tb, but don't know whath that shaft mod is, thanks!
Originally Posted by technical
Sure if you want a 1/2lb of epoxy in your TB. 
FIREHAWK#608, very nice explanation of the half-shaft mod!! it does wonders for part-throttle airflow.
Actually the half-shaft mod has been tested to over 16# of boost....w/o any issues. There aren't even any threads on the top part of the shaft...just the bottom 
Yes, in theory you may be lessening the integrity of the shaft a slight bit.....but for all intent and purpose I don't know anyone on this board that is running enough boost and is still using the stock tb for it to matter. The small theoretical loss is so minimal as to be neglible on most any LS1 motor out there. Are you going to be running 25# on an ls1 motor anytime soon? 30#? Me either....
Yes, in theory you may be lessening the integrity of the shaft a slight bit.....but for all intent and purpose I don't know anyone on this board that is running enough boost and is still using the stock tb for it to matter. The small theoretical loss is so minimal as to be neglible on most any LS1 motor out there. Are you going to be running 25# on an ls1 motor anytime soon? 30#? Me either....
Last edited by cyphur_traq; Feb 26, 2005 at 02:39 PM.
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From: Fat Chance Hotel
Originally Posted by cyphur_traq
hahaha thats funny. epoxy, no epoxy, whatever you want. i've done tb's w/o epoxy that came out very nicely. i've been testing quite a few different compounds. and the actual amount used.....i'll weigh it sometime. i'm willing to bet its pretty light compared to what you may think.
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From: Fat Chance Hotel
My bad...
http://www.aluminumrepair.com/index.htm
Check out the video. They show you how to "mold" new aluminum from a steel cast. Pretty trick.
http://www.aluminumrepair.com/index.htm
Check out the video. They show you how to "mold" new aluminum from a steel cast. Pretty trick.
Cypher is right on the half shaft mod. Holley carbs have been this way for decades- the main thing is the remaining part of the shaft is behind the blade at rest which is the main reason its only "slightly" weaker. I have, along with to many to count other guys doin TBs, never seen any ill effects off of the mod other than extra power.
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Originally Posted by cyphur_traq
Actually the half-shaft mod has been tested to over 16# of boost....w/o any issues. There aren't even any threads on the top part of the shaft...just the bottom
Yes, in theory you may be lessening the integrity of the shaft a slight bit.....but for all intent and purpose I don't know anyone on this board that is running enough boost and is still using the stock tb for it to matter. The small theoretical loss is so minimal as to be neglible on most any LS1 motor out there. Are you going to be running 25# on an ls1 motor anytime soon? 30#? Me either....
Yes, in theory you may be lessening the integrity of the shaft a slight bit.....but for all intent and purpose I don't know anyone on this board that is running enough boost and is still using the stock tb for it to matter. The small theoretical loss is so minimal as to be neglible on most any LS1 motor out there. Are you going to be running 25# on an ls1 motor anytime soon? 30#? Me either....
There are countless threads that raz on the BBK throttlebodies. The shaft probably broke because of faulty casting. I've yet to hear of a case where the stock shaft has broken because of the half shaft mod. Doing the half shaft isn't really considered "taking chances". Doing the mod might only show minimal gains, but it's one of those "every little bit counts" types of deal. Plus it looks so much better. 