[Z06] Against the grain
#361
Melting Slicks
Member Since: Jun 2005
Location: Rochester NY
Posts: 2,734
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2018 C6 of Year Finalist
St. Jude Donor '10, '17
I've still got the whole setup laying around in a box somewhere. I really wanted it to work as in theory it is an awesome mod. But it ended up being more trouble than it was worth based on my use (extended road course).
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jayyyw (08-21-2018)
#366
Le Mans Master
Thread Starter
Man, I was hoping to have a lot of content this weekend. I ended up shredding my belt after only racing one guy and my night was cut very short. Had 7-8 runs lined up with a great selection of cars.
#367
Le Mans Master
Thread Starter
Ordered a velocity stack to test out on the hi ram. The 4.5" intake is great for ingesting a TON of air, but I feel the air speed can be improved. I did some testing a couple setups ago with a 4" intake tube and velocity stack and it was good for around 15wtq and 8-9whp. That's pretty substantial for something overlooked by many people.
I also want to experiment with my nitrous nozzle placement. Currently, it's mounted down by the air filter. Off the hit, torque seems a little low @ 700wtq. I think moving it closer to the throttle body should net 30-50wtq and maybe another 5-10whp.
Can't stop tinkering with this thing.
I also want to experiment with my nitrous nozzle placement. Currently, it's mounted down by the air filter. Off the hit, torque seems a little low @ 700wtq. I think moving it closer to the throttle body should net 30-50wtq and maybe another 5-10whp.
Can't stop tinkering with this thing.
#368
Team Owner
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MTPZ06 (08-21-2018)
#370
Le Mans Master
Interested to see how that works.
Last edited by Pb82 Ronin; 08-21-2018 at 07:01 PM.
#371
Le Mans Master
Thread Starter
The last one caused some reversion in the MAF because of the bends I had to use. The MAF placement on this setup and the route of the intake is more optimized this time around. Never heard of manifold surge before.
#372
Le Mans Master
Yeah, I thought about my comment and changed it. Surge is a VERY extreme definition for something highly unlikely in an NA combo. Think basically if the fluid reached max velocity through the intake manifold and couldn't turn down the port...the fluid (laminar flow) would then hit the wall violently and stall. This is a problem in jet engine inlet design, again...I edited my comment because it's pretty much a mythical unicorn in an NA application.
The following users liked this post:
jayyyw (08-21-2018)
#373
Le Mans Master
Thread Starter
Yeah, I thought about my comment and changed it. Surge is a VERY extreme definition for something highly unlikely in an NA combo. Think basically if the fluid reached max velocity through the intake manifold and couldn't turn down the port...the fluid (laminar flow) would then hit the wall violently and stall. This is a problem in jet engine inlet design, again...I edited my comment because it's pretty much a mythical unicorn in an NA application.
#375
Le Mans Master
No. A "sonic choke" is a purpose built turn, radius, or block, into a port or anything the has a flow through it that needs to be slowed down. Think "shock cone" on the nose of a fighter jet. For instance the MiG-21 or SR-71 linked here. https://www.quora.com/Why-do-some-mi...e-nose?share=1 It was one of the first fighter jets capable of sustained supersonic flight and they needed a shock cone in to slow the inlet air speeds to controllable levels. This ensured the engine wouldn't stall.
Flow through stacks greatly accelerate airflow to the point that some can reach near supersonic levels. Easily do-able in front of a compressor...think turbo. On an NA engine with ONE inlet, a stack should be cool. But you may get one or two ports (think front two), the velocity may be so fast that the port actually stalls or tumbles violently disrupting laminar flow. Just thinking out loud man. I'm merely rambling. Dyno will be the truth teller.
Flow through stacks greatly accelerate airflow to the point that some can reach near supersonic levels. Easily do-able in front of a compressor...think turbo. On an NA engine with ONE inlet, a stack should be cool. But you may get one or two ports (think front two), the velocity may be so fast that the port actually stalls or tumbles violently disrupting laminar flow. Just thinking out loud man. I'm merely rambling. Dyno will be the truth teller.
#377
Ordered a velocity stack to test out on the hi ram. The 4.5" intake is great for ingesting a TON of air, but I feel the air speed can be improved. I did some testing a couple setups ago with a 4" intake tube and velocity stack and it was good for around 15wtq and 8-9whp. That's pretty substantial for something overlooked by many people.
I also want to experiment with my nitrous nozzle placement. Currently, it's mounted down by the air filter. Off the hit, torque seems a little low @ 700wtq. I think moving it closer to the throttle body should net 30-50wtq and maybe another 5-10whp.
Can't stop tinkering with this thing.
I also want to experiment with my nitrous nozzle placement. Currently, it's mounted down by the air filter. Off the hit, torque seems a little low @ 700wtq. I think moving it closer to the throttle body should net 30-50wtq and maybe another 5-10whp.
Can't stop tinkering with this thing.
Direct Port
Direct Port
Direct Port
Direct Port
Direct Port
#380