using t2 block to build NA?
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using t2 block to build NA?
Hi, I was just curious if anyone has built a NA engine using 13bt block? Is the port timing not good for NA? What if I got it ported , would I be able ot change the timing to benefit NA?
I was on mazdatrix's website and I noticed instead of using NA alluminum housings, they use the 13bt housings since they dont have that baffle in the way already. They never mentioned anything about building a NA engine starting with a s4 or s5 t2 irons.
I was on mazdatrix's website and I noticed instead of using NA alluminum housings, they use the 13bt housings since they dont have that baffle in the way already. They never mentioned anything about building a NA engine starting with a s4 or s5 t2 irons.
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With the stock NA manifold, the 6 port NA block is the best choice.
Old school methods dictate that for radical porting you would start with a 4 port engine (TII irons), but every NA Mazda rotary since '84 has been 6 port for a reason.
Old school methods dictate that for radical porting you would start with a 4 port engine (TII irons), but every NA Mazda rotary since '84 has been 6 port for a reason.
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Also, if I had a 6 port engine with a stand alone, would the 2ndary intake ports still work?
A friend had told me the older fb engines with 4 ports are better than the newer 6 ports when you build them. ZIm kinda wondering how a t2 4 port in NA high comp application would b. Thanks guys
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heres an na with the 5th and 6th port together with the 3rd and 4th they use a webber though to feed it, they also have a flow bench to there disposal. I always wanted to try this in a na
heres a link to the build http://www.yawpower.com/dec2004.html
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Yeah, so if you are fed up and just strap a header on a 100% stock TII setup would it work? The pressure sensor wouldnt see pressure so it would just be in vacuum I guess, has anyone done this? I guess this is a threadjack, sorry....
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Please read the previous posts more carefully. First off this would not be on a stock ecu, 2nd I would not try to build a Low compression NA engine, no matter the price of fuel.
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heres an na with the 5th and 6th port together with the 3rd and 4th they use a webber though to feed it, they also have a flow bench to there disposal. I always wanted to try this in a na
heres a link to the build http://www.yawpower.com/dec2004.html
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a lot of people have done it. mostly for engine break-in. you'll have a stand alone so fuel and timing can be adjusted for peak horsepower. due to the turbo intake manifold there will be a lack of torque, but not too much.
i currently have a s4 turbo block, but built with a street port and n/a 9.4:1 rotors. depending on how my financial situation for the moment turns out, I might just be running this n/a on the stock computer and a safc.
i currently have a s4 turbo block, but built with a street port and n/a 9.4:1 rotors. depending on how my financial situation for the moment turns out, I might just be running this n/a on the stock computer and a safc.
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[quote]
Also, if I had a 6 port engine with a stand alone, would the 2ndary intake ports still work?[/qute]
You mean the aux ports? Yes.
A friend had told me the older fb engines with 4 ports are better than the newer 6 ports when you build them. ZIm kinda wondering how a t2 4 port in NA high comp application would b. Thanks guys
heres an na with the 5th and 6th port together with the 3rd and 4th they use a webber though to feed it, they also have a flow bench to there disposal. I always wanted to try this in a na
heres a link to the build http://www.yawpower.com/dec2004.html
heres a link to the build http://www.yawpower.com/dec2004.html
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Thanks Aaon Cake, makes perfect sense.
I just mentioned Mazdatrix using the exhaust housings off the turbo engine because I was not sure if the port timing on the NA and Turbo versions being different. I guess if there is a differnence, its not by much and they are porting it anyways.
Great info guys, I guess that engine will b a turbo application if I ever build it
Great info guys, I guess that engine will b a turbo application if I ever build it
#18
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https://www.rx7club.com/defined-autoworks-176/customer-dyno-charts-679163/
And here is a n/a 13B
13B-RE converted to n/a crappy header, small street port
206 rwhp, 151 rwtq
Looks good to me
And here is a n/a 13B
13B-RE converted to n/a crappy header, small street port
206 rwhp, 151 rwtq
Looks good to me
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