NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Single Turbo Discussion (https://www.nopistons.com/single-turbo-discussion-13/)
-   -   My Project (https://www.nopistons.com/single-turbo-discussion-13/my-project-43398/)

rfreeman27 01-28-2005 04:20 PM

https://www.nopistons.com/forums/pub...IR#>/happy.png

rfreeman27 01-28-2005 04:21 PM

last one



the dump tubes go right out of the subframe. The wastegates look awesome installed in the car, nice and tidy.



And yes i know that they are different colors...It was that or wait for them to restock...

rfreeman27 01-28-2005 04:32 PM

https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

manolis 01-28-2005 08:49 PM

Are you going to be able to control boost with the wastegates that close to the ports? Also, it looks like the poor things are going to get roasted! They're right in the middle of 2000* piping...

z8cw 01-28-2005 09:19 PM


Originally Posted by rotor_dee' date='Jan 25 2005, 07:18 PM
yes the 800rwhp was made at 32 psi. The car has been up as high as 46psi and stayed together somebody turned the boost controller to high by accident and I got on the transbrake for about 9sec's according to my data log and when I reviewded it there she was higher then ever. Needless to say this year 32 psi will be the low setting https://www.nopistons.com/forums/pub...IR#>/smile.png




Assuming that the HP was made at 7500 rpm (similar to the peak HP on the website) this is the highest VE I have ever seen with a street port. My calculations says 1.10 which otherwise has only been achieved by PP motors. Very impressive!!!!

yonner 01-29-2005 06:41 AM

nice welding :O

yonner 01-29-2005 12:25 PM

ive just noticed get this out of the single turbo discusion https://www.nopistons.com/forums/pub...#>/biggrin.png lol

TyresmokinRx7 01-29-2005 12:49 PM

Very nice rfreeman27. My old FB was tested at 754rwhp at 25psi on avgas and she ran best ET 8.61@167mph. She had a 13B big street port with a T66.

Last I've heard of the car after selling her, she's run low 8's with a T88.

It's amazing the difference tunning can do.



Luis.

ErnieT 01-29-2005 01:40 PM


Originally Posted by TyresmokinRx7' date='Jan 29 2005, 02:49 PM
Very nice rfreeman27. My old FB was tested at 754rwhp at 25psi on avgas and she ran best ET 8.61@167mph. She had a 13B big street port with a T66.

Last I've heard of the car after selling her, she's run low 8's with a T88.

It's amazing the difference tunning can do.



Luis.




You made 754rwhp with a T66 on a 13B? Supra's don't even make that kind of power with that small of a turbo at at that boost level.

TyresmokinRx7 01-29-2005 01:45 PM


Originally Posted by ErnieT' date='Jan 29 2005, 11:39 AM
You made 754rwhp with a T66 on a 13B? Supra's don't even make that kind of power with that small of a turbo at at that boost level.




Well, what can I say, It was built properly and by a pro shop.

There's pictures of it somewhere here.

rfreeman27 01-29-2005 01:56 PM


Originally Posted by manolis' date='Jan 28 2005, 09:48 PM
Are you going to be able to control boost with the wastegates that close to the ports? Also, it looks like the poor things are going to get roasted! They're right in the middle of 2000* piping...






The wastegates are going to get cooked, this I know.



But, with 80mm of wastegate, I think it will be able to keep the boost down https://www.nopistons.com/forums/pub...IR#>/smile.png



Thanks for the compliment luis https://www.nopistons.com/forums/pub...IR#>/happy.png

rotor_dee 01-29-2005 06:25 PM

Thanks, if you are looking to get your VE very high my advice would be stop worrying about what port makes what VE and put more effort into the air pump (turbo) that is hanging of the side of your motor. Turbo sizing is the key.

z8cw 01-29-2005 08:03 PM


Originally Posted by rotor_dee' date='Jan 29 2005, 05:25 PM
Thanks, if you are looking to get your VE very high my advice would be stop worrying about what port makes what VE and put more effort into the air pump (turbo) that is hanging of the side of your motor. Turbo sizing is the key.






Man, there you go, theory vs practical experience. I always thought that you have to get your ports right first and then worry about the turbo. On the other forum it is actually very funny how everyone just slaps on the new "best" turbo and noone makes anymore HP than with there old set-up.



In any case, VE depends on the combustion chamber, ports and RPMs. The volume of air you force into the engine is always the same, no matter what boost; it can only fill out the chamber. The density of course changes and that will give you the extra power. More air molecules can play with more fuel molecules...



Where do I go wrong here. Anymore input?



Thanks

CW

ErnieT 01-29-2005 08:29 PM


Originally Posted by TyresmokinRx7' date='Jan 29 2005, 03:45 PM
Well, what can I say, It was built properly and by a pro shop.

There's pictures of it somewhere here.




Ok, I suppose I will just come right out and say it. YOUR FULL OF ****..... https://www.nopistons.com/forums/pub...1047683785.gif

crispeed 01-29-2005 10:46 PM


Originally Posted by ErnieT' date='Jan 29 2005, 06:28 PM
Ok, I suppose I will just come right out and say it. YOUR FULL OF ****..... https://www.nopistons.com/forums/pub...1047683785.gif




Come on Ernie.

Miracles do happen!https://www.nopistons.com/forums/pub...IR#>/smile.png

TyresmokinRx7 01-30-2005 03:15 AM


Originally Posted by ErnieT' date='Jan 29 2005, 06:28 PM
Ok, I suppose I will just come right out and say it. YOUR FULL OF ****..... https://www.nopistons.com/forums/pub...1047683785.gif




If you do a search you'll find info of my old car and pictures too. Then talk to me.

rfreeman27 01-30-2005 10:45 AM

https://www.nopistons.com/forums/pub...IR#>/dunno.gif





https://www.nopistons.com/forums/index.php?...topic=31507&hl=

boost_creep 01-30-2005 11:18 AM


Originally Posted by TyresmokinRx7' date='Jan 30 2005, 05:14 AM
If you do a search you'll find info of my old car and pictures too. Then talk to me.


rfreeman27 just shut the naysayers up..........good job. Now why did'nt they respond to the proof that was provided............................. All are not man enough to say they were sorry. https://www.nopistons.com/forums/pub...1047683664.gif https://www.nopistons.com/forums/pub...1047683664.gif https://www.nopistons.com/forums/pub...1047683664.gif https://www.nopistons.com/forums/pub...1047683785.gif https://www.nopistons.com/forums/pub...1047683785.gif https://www.nopistons.com/forums/pub...1047683785.gif FAAAKERS

ErnieT 01-30-2005 11:22 AM


Originally Posted by boost_creep' date='Jan 30 2005, 01:17 PM



You must not read to well. Nobody was doubting Bobby's goals. I know he'll do it. I said the other guy that was claiming 750rwhp w/ a T66 on a 13B at only 25psi was full of ****........and he is.....lol....Hell he didn't even scan a timeslip.... https://www.nopistons.com/forums/pub...1047683664.gif

rfreeman27 01-30-2005 03:10 PM


Originally Posted by ErnieT' date='Jan 30 2005, 12:22 PM
I know he'll do it.





damn right https://www.nopistons.com/forums/pub...1047683473.gif

eric515 01-30-2005 05:24 PM

That is a nice car...

rfreeman27 01-30-2005 05:56 PM


Originally Posted by boost_creep' date='Jan 30 2005, 12:17 PM





Yeah dude what are you talking about. I just posted that so my thread would stop getting hijacked https://www.nopistons.com/forums/pub...1047683664.gif

rotor_dee 01-31-2005 09:58 AM

Books are great and they will get you started in the right direction but you will eventually have to experiment and apply the knowledge. My advice build a car and try different engine combinations you will learn way more then a generic book that is most likely written for piston vehicles can teach you. The world is full of lemmings that do what the next guy does. Here is the problem when you do the same thing that everyone else is doing and expect different results. Try to get creative and try new things. Take what you learned in the books and apply it and see what really happens. Most of the papers that you are reading that discuss VE on rotary motors cover the topic in NA form. Things change dramatically when you have one air pump feeding another.



Bobby's project is a good example everyone is saying "it won't spool up it won't make the power" etc etc but 99.9 percent of the people have not tried it themselves. Bobby I will now leave your thread alone https://www.nopistons.com/forums/pub...IR#>/smile.png



As for the porting on my car it is a standard oversized street port. I have actually torn it apart for the many non-believers when the dyno sheets and data logs weren't enough proof. I am not the only guy making this power on a street ported motor there are a few others and I'm sure they got there the same way, trial and error because unfortunatley last time I was in Borders theree were no books in the automotive section called "How to make 800rwhp on a 13b."



Hey that is a idea Crispeed want to help me write it?

93 R1 01-31-2005 03:26 PM


Originally Posted by rotor_dee' date='Jan 31 2005, 11:58 AM
Books are great and they will get you started in the right direction but you will eventually have to experiment and apply the knowledge. My advice build a car and try different engine combinations you will learn way more then a generic book that is most likely written for piston vehicles can teach you. The world is full of lemmings that do what the next guy does. Here is the problem when you do the same thing that everyone else is doing and expect different results. Try to get creative and try new things. Take what you learned in the books and apply it and see what really happens. Most of the papers that you are reading that discuss VE on rotary motors cover the topic in NA form. Things change dramatically when you have one air pump feeding another.



Bobby's project is a good example everyone is saying "it won't spool up it won't make the power" etc etc but 99.9 percent of the people have not tried it themselves. Bobby I will now leave your thread alone https://www.nopistons.com/forums/pub...IR#>/smile.png



As for the porting on my car it is a standard oversized street port. I have actually torn it apart for the many non-believers when the dyno sheets and data logs weren't enough proof. I am not the only guy making this power on a street ported motor there are a few others and I'm sure they got there the same way, trial and error because unfortunatley last time I was in Borders theree were no books in the automotive section called "How to make 800rwhp on a 13b."



Hey that is a idea Crispeed want to help me write it?




https://www.nopistons.com/forums/pub...IR#>/bigok.gif

Il RX8 lI 01-31-2005 04:29 PM


Originally Posted by rfreeman27' date='Jan 28 2005, 04:21 PM
last one



the dump tubes go right out of the subframe. The wastegates look awesome installed in the car, nice and tidy.



And yes i know that they are different colors...It was that or wait for them to restock...


Who cares about the different colors? I think it looks pretty cool that way...

rfreeman27 01-31-2005 05:41 PM


Originally Posted by rotor_dee' date='Jan 31 2005, 10:58 AM
Books are great and they will get you started in the right direction but you will eventually have to experiment and apply the knowledge. My advice build a car and try different engine combinations you will learn way more then a generic book that is most likely written for piston vehicles can teach you. The world is full of lemmings that do what the next guy does. Here is the problem when you do the same thing that everyone else is doing and expect different results. Try to get creative and try new things. Take what you learned in the books and apply it and see what really happens. Most of the papers that you are reading that discuss VE on rotary motors cover the topic in NA form. Things change dramatically when you have one air pump feeding another.



Bobby's project is a good example everyone is saying "it won't spool up it won't make the power" etc etc but 99.9 percent of the people have not tried it themselves. Bobby I will now leave your thread alone https://www.nopistons.com/forums/pub...IR#>/smile.png



As for the porting on my car it is a standard oversized street port. I have actually torn it apart for the many non-believers when the dyno sheets and data logs weren't enough proof. I am not the only guy making this power on a street ported motor there are a few others and I'm sure they got there the same way, trial and error because unfortunatley last time I was in Borders theree were no books in the automotive section called "How to make 800rwhp on a 13b."



Hey that is a idea Crispeed want to help me write it?






Dee, feel free to interject at any time!





Oh and great news, the car will be done this week. Hopefully in a few days https://www.nopistons.com/forums/pub...IR#>/smile.png



and to rx-8, i dont give a ****...makes no difference

z8cw 01-31-2005 07:40 PM


Originally Posted by rotor_dee' date='Jan 31 2005, 08:58 AM
Books are great and they will get you started in the right direction but you will eventually have to experiment and apply the knowledge. My advice build a car and try different engine combinations you will learn way more then a generic book that is most likely written for piston vehicles can teach you. The world is full of lemmings that do what the next guy does. Here is the problem when you do the same thing that everyone else is doing and expect different results. Try to get creative and try new things. Take what you learned in the books and apply it and see what really happens. Most of the papers that you are reading that discuss VE on rotary motors cover the topic in NA form. Things change dramatically when you have one air pump feeding another.



Bobby's project is a good example everyone is saying "it won't spool up it won't make the power" etc etc but 99.9 percent of the people have not tried it themselves. Bobby I will now leave your thread alone https://www.nopistons.com/forums/pub...IR#>/smile.png



As for the porting on my car it is a standard oversized street port. I have actually torn it apart for the many non-believers when the dyno sheets and data logs weren't enough proof. I am not the only guy making this power on a street ported motor there are a few others and I'm sure they got there the same way, trial and error because unfortunatley last time I was in Borders theree were no books in the automotive section called "How to make 800rwhp on a 13b."



Hey that is a idea Crispeed want to help me write it?




You are absolutely right. Unfortunanetly I must have gotten it all wrong. My idea of just coping the next guy was to slap the next best turbo on the engine and hope for a miracle. I really believed the pudding is in the porting. Now I am all back to square again!!!!!



Still, if you take a stock port it would make 800 rwhp at 50 psi and 7000rpm, at least theoretically. We all assume that will be to much pressure for the engine to handle. So now efficiency of the mototr comes into play. You can't chase after HP just with a larger turbo. The engine won't hold up and your turbo is in massive surge most of his life...short life.



Now add some porting and your boost level to make 800 will drop significantly. Substitute some rpms (expensive) and your boost level will drop again.



Shoot, my engine is apart right now and I thought I was on the right track. Looks like I need to take it apart many times to catch up to you....or when is this book going to be published???? https://www.nopistons.com/forums/pub...1047683561.gif



And sorry for hijacking this threat (all related though, I think)



CW

rotor_dee 01-31-2005 08:13 PM

Today boys and girls the word of the day is theoretically, can you say it with me t-h-e-o-r-e-t-i-c-a-l-l-y






Originally Posted by z8cw' date='Jan 31 2005, 05:39 PM
You are absolutely right. Unfortunanetly I must have gotten it all wrong. My idea of just coping the next guy was to slap the next best turbo on the engine and hope for a miracle. I really believed the pudding is in the porting. Now I am all back to square again!!!!!



Still, if you take a stock port it would make 800 rwhp at 50 psi and 7000rpm, at least theoretically. We all assume that will be to much pressure for the engine to handle. So now efficiency of the mototr comes into play. You can't chase after HP just with a larger turbo. The engine won't hold up and your turbo is in massive surge most of his life...short life.



Now add some porting and your boost level to make 800 will drop significantly. Substitute some rpms (expensive) and your boost level will drop again.



Shoot, my engine is apart right now and I thought I was on the right track. Looks like I need to take it apart many times to catch up to you....or when is this book going to be published???? https://www.nopistons.com/forums/pub...1047683561.gif



And sorry for hijacking this threat (all related though, I think)



CW



Fd3BOOST 01-31-2005 08:36 PM

Bobby, who is making this manifold? I have been taking welding classes so I am interested to know. Anyway good luck. IT WILL NEVER WORK. Mwhaa haa.. J/K

https://www.nopistons.com/forums/pub...R#>/tongue.png

Il RX8 lI 01-31-2005 08:44 PM


Originally Posted by rfreeman27' date='Jan 31 2005, 05:40 PM
Dee, feel free to interject at any time!

Oh and great news, the car will be done this week. Hopefully in a few days https://www.nopistons.com/forums/pub...IR#>/smile.png



and to rx-8, i dont give a ****...makes no difference


You shouldn't, looks bitchin'. https://www.nopistons.com/forums/pub...#>/biggrin.png Edit: I mean hell, if I were doing it, I'd go different colors on the BOVs too. Uniform things are very *yawn* to me, doing things different...now there's a way to live life. (Reason I chose rotary car.)

Il RX8 lI 01-31-2005 08:51 PM

You know, if there were actually a need for 2 BOVs... https://www.nopistons.com/forums/pub...1047683785.gif

rfreeman27 01-31-2005 09:35 PM


Originally Posted by Fd3BOOST' date='Jan 31 2005, 09:35 PM
Bobby, who is making this manifold? I have been taking welding classes so I am interested to know. Anyway good luck. IT WILL NEVER WORK. Mwhaa haa.. J/K

https://www.nopistons.com/forums/pub...R#>/tongue.png




Kayo Clark, Clark Racing chassis. PM me if you want some contact info.






Originally Posted by Il RX8 lI' date='Jan 31 2005, 09:44 PM
You shouldn't, looks bitchin'. https://www.nopistons.com/forums/pub...#>/biggrin.png Edit: I mean hell, if I were doing it, I'd go different colors on the BOVs too. Uniform things are very *yawn* to me, doing things different...now there's a way to live life. (Reason I chose rotary car.)




https://www.nopistons.com/forums/pub...1047683561.gif https://www.nopistons.com/forums/pub...1047683561.gif

Il RX8 lI 01-31-2005 09:43 PM

Oh, forgive me, it was very https://www.nopistons.com/forums/pub...1047683621.gif . I was referring to how you wouldn't normally see two different colored wastegates under many hoods. (Especially since there's only so many people needing two wastegates in the first place.) I thought that it looked pretty interesting since it's something I've never seen before. Just trying to maybe make you feel better if you thought it looked stupid. (Doesn't.)

Edit: If you were head scratching at me saying "2 BOVs," however, take a look at my next post.

Fd3BOOST 02-01-2005 11:39 AM


Originally Posted by rfreeman27' date='Jan 31 2005, 07:35 PM
Kayo Clark, Clark Racing chassis. PM me if you want some contact info.



No I was just curious what machine was being used now that I know what I am looking at when I look at welds.

rfreeman27 02-01-2005 01:25 PM


Originally Posted by Il RX8 lI' date='Jan 31 2005, 10:42 PM
Edit: If you were head scratching at me saying "2 BOVs," however, take a look at my next post.




Whateva, I might run two bov's just because TXS might give me another for free...

treceb 02-01-2005 01:54 PM


Originally Posted by Il RX8 lI' date='Jan 31 2005, 09:51 PM
You know, if there were actually a need for 2 BOVs... https://www.nopistons.com/forums/pub...1047683785.gif


well 2 BOV's while overkill and not necessary, is the best of both worlds....





cars looking good regina.lol definately let us know when u come to a track in jersey.

rfreeman27 02-01-2005 02:44 PM

Apillar pics

rfreeman27 02-01-2005 02:46 PM

https://www.nopistons.com/forums/pub...1047683894.gif

rfreeman27 02-01-2005 02:47 PM

https://www.nopistons.com/forums/pub...1047683329.gif

rfreeman27 02-01-2005 02:50 PM

Last one.



For the past few days I have really been thinking if doing all of this is going to be worth it. But, I had lost sight of my goal; to make the most badass, reliable street/track rx-7. I feel much better now that it's almost done, I cannot wait to drive it https://www.nopistons.com/forums/pub...1047683894.gif



-ragina https://www.nopistons.com/forums/pub...IR#>/blink.png


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