Turbo Intake Manifold Design
#26
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Originally Posted by 86rx7
umm.. wouldnt that mean that the s-dias stuff wouldnt function under
WOT when there is zero vacume? You sure they dont use airpump air or something else?
WOT when there is zero vacume? You sure they dont use airpump air or something else?
#27
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Originally Posted by shelleys_man_06
Back to the intake manifold, would using longer runners affect low-speed power? The goal for any tuner, especially in making a sound street car, would be to increase the average power, not maximizing it at x-rpm. I think this is why S-DAIS is employed, since changing the length of the runners assures a healthy powerband and a flat torque curve.
Yes it would affect low speed power. It would increase it. The turbo makes up for the top end. It would be a nice braod power curve.
#28
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If you blow up an engine at only 5 psi, it is really quite simple, it wasn't tuned. Period. I don't buy into the it was the side seals crap. They are sheltered around the side of the rotor. They may cross over the exhaust ports but the exhaust gasses do not directly cross the seals. Look at a rotor or a picture of one sometime to see what I mean. The side seals are much thicker and stronger than the previous seals as well. I find it interesting yet strangely disturbing that one shop could blow up more than one engine. If it wasn't one shop, they do know the people who have done it. Since no one here knows of anyone who has, it is easy to see that they are affiliated in some way. If I blew up 8 motors, I'd find a new line of work. Don't be afraid to tells us who they are. You'll do us a favor by letting us know who to avoid. I won't use them anyways so no harm done here.
Just some food for thought. If someone were developing a turbo kit and knew they had competition, they could very easily claim that the engines blow up with forced induction. That way they would discredit their competitors systems. Then when theirs hits the market they can claim to be the ones who have solved the problem. Not everyone falls for it but some do. We see it here on this forum from time to time. Some people still claim the engine can't be boosted. It can.
Just some food for thought. If someone were developing a turbo kit and knew they had competition, they could very easily claim that the engines blow up with forced induction. That way they would discredit their competitors systems. Then when theirs hits the market they can claim to be the ones who have solved the problem. Not everyone falls for it but some do. We see it here on this forum from time to time. Some people still claim the engine can't be boosted. It can.
#29
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Originally Posted by rotarygod
I don't buy into the it was the side seals crap. They are sheltered around the side of the rotor. They may cross over the exhaust ports but the exhaust gasses do not directly cross the seals.
Originally Posted by shelleys_man_06
Also, is the intake manifold on the RENESIS symmetrical? If not, what would be the effect of a symmetrical manifold? I hear that Mazda rotary engines employ non-symmetrical manifold designs, but I'm not sure.
What about the position of the fuel injectors? Will the angle with respect to the horizontal suffice under a high-boost application? I hear injectors are not to exceed 20 degrees with the horizontal (Corky Bell).
With the extra boost supplied by the turbocharger, is it necessary to include a MAP, assuming there would be a positive change in pressure in the intake manifold?
What about the position of the fuel injectors? Will the angle with respect to the horizontal suffice under a high-boost application? I hear injectors are not to exceed 20 degrees with the horizontal (Corky Bell).
With the extra boost supplied by the turbocharger, is it necessary to include a MAP, assuming there would be a positive change in pressure in the intake manifold?
#30
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see i should have said my piece first and then had rotarygod back me up. side seals breaking seems to me like it would be more of a oil injection problem than a boost problem. also another thought. how did they get 8 motors to work on? did they buy in bulk? or did they break the same on over and over. what's the going price for a renesis? somewhere close to $6,000 right?
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Don't feel bad Zoom44. You did make a good point .
Is it possible to buy engines in the bulk? Seems kind of like a Sam's Club deal . I hope whoever broke eight engines didn't use the same one over and over. IMO, if it breaks once, there's no point in re-trying. I would imagine that a 13B-MSP new would cost $6,000.
Is it possible to buy engines in the bulk? Seems kind of like a Sam's Club deal . I hope whoever broke eight engines didn't use the same one over and over. IMO, if it breaks once, there's no point in re-trying. I would imagine that a 13B-MSP new would cost $6,000.
#32
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but i think if a "good" rotary shop( think Atkins Rotary) toasted some seals while tuning a new FI component they would pop it open fix what broke and put it back together. they would also know exactly WHY they toasted those seals. so they would not repeat that mistake. if for some reason those seals broke again they would be replaced with much stonger ones. there is no reason for someone to burn thru 8.
#33
rev it up
Guys,
I am not sure if you are aware that a turbo has been sucessfully added to the renesis engine. They claim increased power with low boost. Try the following link for more information. https://www.rx8club.com/australia-new-zealand-forum-37/rotor-master-turbo-30526/
I understand the system is for sale.
skc
I am not sure if you are aware that a turbo has been sucessfully added to the renesis engine. They claim increased power with low boost. Try the following link for more information. https://www.rx8club.com/australia-new-zealand-forum-37/rotor-master-turbo-30526/
I understand the system is for sale.
skc
#36
In rex'es side seal only usually break if you clearence them bad, or the rotor hits the side housing, or super bad detonation or soemthing else catastrophic. It is possible though that the side exhaust ports are stressing them much more, or maybe the new keystone side seals are weaker? or maybe it was a fluke....
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Fickert
Series I Major Horsepower Upgrades
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09-09-2015 01:21 PM
boosted, changing, design, designs, fabricated, forced, intake, intakemanifold, manifold, rx8, symmetrical, turbo, turboxs, weird