NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   20B Forum (https://www.nopistons.com/20b-forum-51/)
-   -   20b (https://www.nopistons.com/20b-forum-51/20b-47113/)

bpmfla 04-08-2005 08:18 AM

Does 450 rwhp on a 20b @ 8lbs.boost sound right with a single turbo set up and intelligent porting?

little rotary 14 04-08-2005 09:23 PM

ANYBODY HERE? Really......is there anybody here that is not full of **** and actually knows something firsthand about ANYTHING 20B? GODDAMN????

boost_creep 04-08-2005 09:31 PM

You talking about this car, I doubt it myself. But hey that's there claim to fame. Its been sold for $36,999.00 to me the car is not worth it.

boost_creep 04-08-2005 09:34 PM

Before I spend $36,999 on that 7 I would buy this. I love my 7 but the MR would also fit very well right next to it.

bpmfla 04-09-2005 03:00 PM

Nice rx7 in the pics. Is that a Petit car? What kind of hhp do you think a 20b makes at 8lbs? Did they make any claims?

boost_creep 04-09-2005 11:01 PM

Not a Petit car. This is from Twilight Performance and claims 362bhp @ 7psi.

RETed 04-13-2005 08:15 AM

[quote name='bpmfla' date='Apr 8 2005, 05:18 AM']Does 450 rwhp on a 20b @ 8lbs.boost sound right with a single turbo set up and intelligent porting?

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Sure.





-Ted

teknics 04-16-2005 04:09 PM

[quote name='RETed' date='Apr 13 2005, 08:15 AM']Sure.

-Ted

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great answer, you should be in politics, way to be helpful.



kevin.

GreyGT-C 04-16-2005 04:19 PM

Mike Hahn made 628rwhp at 13 psi.... with a T72... which is too small of a turbo for that engine. I think 450 @ 8 psi with the RIGHT turbo is possible.

bpmfla 04-18-2005 02:51 PM

[quote name='GreyGT-C' date='Apr 16 2005, 01:19 PM']Mike Hahn made 628rwhp at 13 psi.... with a T72... which is too small of a turbo for that engine. I think 450 @ 8 psi with the RIGHT turbo is possible.

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I guess the next question would be what is the right turbo? I am thinking about a Garret T

04.

rotary_pwr 04-20-2005 10:26 PM

wow never knew the 20B still sat so back into engine bay https://www.nopistons.com/forums/pub...#>/biggrin.png i did find somwhere how much longer the engine is extended with addition of 3rd rotor in 20B but didnt have actual pic...

RETed 04-23-2005 07:12 AM

[quote name='teknics' date='Apr 16 2005, 01:09 PM']great answer, you should be in politics, way to be helpful.

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I think it was more helpful than your answer.

If you got no experience with 20B's, why you sticking your nose in this thread?





-Ted

Node 04-23-2005 07:57 AM

wow, what a whiney bunch





and 362rwhp@7psi with that big ole turbo? that turbo probably hates that low of boost.

sillbeer 05-09-2005 11:58 PM

I made 587rwhp @ 16psi on a greddy t88 which has a 72mm wheel. That was on stock ports.



-Destin

IGY 05-10-2005 05:12 AM

[quote name='sillbeer' date='May 10 2005, 01:58 PM']I made 587rwhp @ 16psi on a greddy t88 which has a 72mm wheel. That was on stock ports.



-Destin

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Did you remove the sleeves from the rotor housings or use 13b housings?

bpmfla 05-10-2005 09:14 AM

nice hp!!!! How long will that motor last running at 16 lbs?

sillbeer 05-10-2005 11:22 AM

With good tuning it should last a long time @ 16lbs. This was with fd housings. As soon as I put it back together it'll be a little over 600. The current injector configuration was holding me back. Primary 550's and secondary 1000's. I picked up a k2rd rail and some 1600's. I'm also going to install a water injection system for it. It'll help the piss gas I have to run here in the states. I don't plan on running race gas in it.



-Destin



[quote name='bpmfla' date='May 10 2005, 06:14 AM']nice hp!!!! How long will that motor last running at 16 lbs?

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Rub20B 05-11-2005 08:03 AM

That's one advantage of europe, we can't get anything lower then 95 octane, usually 98.. but on some stations you can get some really high octane fuel:p



Does afgas has an advantage over regular fuel when it comes to detonation prevention?

bpmfla 05-11-2005 01:26 PM

Just got word from the shipping co. that my 20b will be here tomorrow!! JR plans on doing some mild porting .....if the motor looks good inside......if we have to tear it open he will be a bit more aggressive. Planning on running just 8lbs or even just the spring most of the time. Once it's running will go from there. I'll be posting pics.....JR does sweet work so I'll post as it gets built.


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