Originally Posted by jspecracer7' date='Oct 14 2003, 07:07 PM
nope. Half bridge with the rotor housing cut will give me more flow than a full bridge. I think I'll bridge the primary's instead of the secondaries.
Why? Never heard of that. Please explain |
probably to get a greater air flow at lower rpms.
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Originally Posted by 93 R1' date='Oct 15 2003, 09:23 PM
????????????
Why? Never heard of that. Please explain Kind of hard to explain, but in person, it's cake. IGY did it on his rotor housings and I was amazed at the power it made(at .8 kilos boost I SWORE to never ride in his car again...and I haven't) |
The primary bridge is a theory, the only real limitation I see is intake manifold/ primary runner size. This is why I want to try this using a cosmo center plate and intake manifold. As far as beveling the rotor housings, I was fairly sure that everyone did this unless they were following certain class rules forbidding porting on the rotor housings. I personally believe that for turbo charged rotaries that a full bridge extends the powerband to high in the rev range, and is of no benefit for the average person. 12,000 rpm's with boost is alot different than 12,000rpm's without.
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I agree with you. There isn't really a need for 12,000 with 20 psi, but it does sound badass.
So why do most people bridge the secondaries, instead of primaries when doing a half bridge? Just trying to understand the logic between the 2. I had an indepth conversation with Judge Ito about this, since he will be building my half bridge. He never mentioned bridging the primaries instead...... Basically I want what IGY has. A car that will scare the piss out of people, and just put a huge smile on my face everytime I drive it. IGY what kind of power was your car making roughly? |
Originally Posted by 93 R1' date='Oct 16 2003, 02:37 AM
I agree with you. There isn't really a need for 12,000 with 20 psi, but it does sound badass.
So why do most people bridge the secondaries, instead of primaries when doing a half bridge? Just trying to understand the logic between the 2. I had an indepth conversation with Judge Ito about this, since he will be building my half bridge. He never mentioned bridging the primaries instead...... Basically I want what IGY has. A car that will scare the piss out of people, and just put a huge smile on my face everytime I drive it. IGY what kind of power was your car making roughly? |
Hmmm. You boys get back on topic....NOW!
Based on CFM calculations and VE numbers that are probably not right, I think this turbo is going to have a heck of a top BANG with a fairly decent spool up. I am most concerned with it at 17psi and around 5000rpm. Matched with the right amount of extra CFM from a large street port or a race port (the latter with more overlap between intake and exhaust....my definition for this post anyways) it will be nice. On a mild or stock port, I think you run the risk of being to left of the surge line....not enough UMPH! Going to be a joy.....soon. |
You're referring to the 88mm wheel correct? Which exhaust housing though...is the .94 going to be too small?
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Originally Posted by jspecracer7' date='Oct 15 2003, 06:14 PM
[quote name='93 R1' date='Oct 16 2003, 02:37 AM'] I agree with you. There isn't really a need for 12,000 with 20 psi, but it does sound badass.
So why do most people bridge the secondaries, instead of primaries when doing a half bridge? Just trying to understand the logic between the 2. I had an indepth conversation with Judge Ito about this, since he will be building my half bridge. He never mentioned bridging the primaries instead...... Basically I want what IGY has. A car that will scare the piss out of people, and just put a huge smile on my face everytime I drive it. IGY what kind of power was your car making roughly? https://www.nopistons.com/forums/pub...1047683894.gif https://www.nopistons.com/forums/pub...1047683894.gif https://www.nopistons.com/forums/pub...1047683473.gif https://www.nopistons.com/forums/pub...1047683473.gif https://www.nopistons.com/forums/pub...1047683329.gif https://www.nopistons.com/forums/pub...IR#>/bigok.gif |
Originally Posted by rx7tt95' date='Oct 16 2003, 09:02 AM
You're referring to the 88mm wheel correct? Which exhaust housing though...is the .94 going to be too small?
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