NA MIATA 1.8 Rods
Hi,
i am completly new to the Miata and have a question regarding the stock rods. Can anyone tell for how much power and torq the stock 1.8 NA rods good for? At what stage it makes sense to change the rods and do you have any advise? Regards |
Originally Posted by 1080
(Post 955719)
Hi,
i am completly new to the Miata and have a question regarding the stock rods. Can anyone tell for how much power and torq the stock 1.8 NA rods good for? At what stage it makes sense to change the rods and do you have any advise? Regards |
Man this question really does come up weekly. Brain, can we have a little writeup on things like this and make the question(s) you have to answer before you can get a membership be a quiz on the questions that come up constantly?
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Not worth the trouble.
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Sorry, i didnt know that this questions is coming every week cause i dont find anything with the search...
@hochkis thx for your answer, but what is 250wtq for a unit? Can you tell me the torq and bhp? background is i have a NBFL engine which should run in my NA for trackday use. The engine have already 323 GTR pistons with a reduced compression, i guess 8.2:1 or so and a turbo. At least the engine have 230 bhp (not proven yet cause i dont have it on a dyno already) but i want to boost them a little bit more... so the questions is as long as the engine is out of the car, does it make sense to spend some extra money for new rods or can i run 300bhp with the stock ones? Thx in advance for every helpfull answer. |
Originally Posted by 1080
(Post 955756)
@hochkis
thx for your answer, but what is 250wtq for a unit? Can you tell me the torq and bhp?
Originally Posted by 1080
(Post 955756)
background is i have a NBFL engine which should run in my NA for trackday use. The engine have already 323 GTR pistons with a reduced compression, i guess 8.2:1 or so and a turbo. At least the engine have 230 bhp (not proven yet cause i dont have it on a dyno already) but i want to boost them a little bit more... so the questions is as long as the engine is out of the car, does it make sense to spend some extra money for new rods or can i run 300bhp with the stock ones?
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And you'll be back here in a month asking "my 5 speed blew up, what's a good replacement upgrade for it?".
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with that CR level, you'll never need to worry about the rods; not enough torque.
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Originally Posted by ShockerGT
(Post 955760)
It means 250 wheel torque as in the torque applied through the wheels.
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Originally Posted by TurboTim
(Post 955779)
I think he does not know if you mean 250 newton-meters or something else.
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0.125 ft-tons
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3000 in-lbs.
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But how much Work is 250ft lbs?
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250 lb-ft.
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Originally Posted by Erat
(Post 955804)
But how much Work is 250ft lbs?
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There is a thread that covers all noob power questions. Even if it doesn't answer all it gives more info to search on https://www.miataturbo.net/diy-turbo...k-links-56507/
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I'd be like over like 1500lbs if I were 250lb per ft. I'm sure I'd break the rods by then. Must be right. Like. Like. Like.
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Yeah, quiet funny.... but in Germany we have other units compare to the US. So sorry that wtq, lbs etc. dosent ring a bell.
Neverless, thx for the helpfull answers and the rest comments. |
With a small T25 I would say about 10, maybe 12 psi. With a T3/T4, no more than 7-8 psi, and pray for no detonation.
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