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Originally Posted by miatamania
(Post 573274)
A little late to the party but as we talked about yesterday, I still think for what you are wanting to do 9.5:1 would be what you need.
Hustler's motor is overbuilt with plenty of headroom. For the goals you have it just seems like a waste to leave power on the table like that for a car that is going to see more street time than a dedicated track car. |
Doubt your 6 speed will break on 16-20psi out of a 28.
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Im starting to lean a lot more towards the 9.0-9.5 CR range, as adam mentioned, hustler's setup does seem to be built with long track sessions in mind, and in the sense that I ever thought 9.5 would be a little too much for me I do have a brand new water/meth kit in the garage ;). Recommendations from you fellas on good/trustable brands, combinations of brands? Ive seen the rods for sell over at 949 have a good price but I dont want to be lured in by "good prices" only. (no disrespect or doubt towards emilio or his parts) I've been proposed good prices on Supertech pistons and I was curious as to who actually makes the rods that 949 sells, M-tuned as well?
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running mtuned rods and they are great. many on here use supertech with good results though a couple have had bad. Wiseco is usually agreed upon as making good pistons. I'd say you can't go wrong with wiseco+mtuned
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Originally Posted by 18psi
(Post 573309)
running mtuned rods and they are great. many on here use supertech with good results though a couple have had bad. Wiseco is usually agreed upon as making good pistons. I'd say you can't go wrong with wiseco+mtuned
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Off topic kinda but as for rods you could get away with anything as long as you have em miced and theres no out of rounds or any problems like that. i used a set of eagles in my dsm i used to have and was not pleased but i was shooting for alot more then 280hp, eagle rods seem to get a lil on edge with anything over 400hp iv seen some hold 500-600 but imo thats like making 325 on a stock bp bottom end, it will do it, for a little. btw im not sure but i belive m-tuned rods are very comparable to eagles and are beefy enough im sure to hold up to all the power you could want in a street driven miata. as for pistons i would go will je but that dosnt mean wiescos are a bad chioce either, i only say je because iv seen a good few wiescos broken at the ring lands in the ford mod motors.
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Originally Posted by na8psi
(Post 573579)
If you dont mind me asking, are you running Wiseco's? A little off topic of the current rod/piston conversation, I've obviously been looking at the other aspects of the engine itself, i.e. new water pump, pickup tube/strainer, new main bearings, thrust etc etc etc....I originally had budgeted to go with a Boundary Engineering Billet oil pump, but is this necessary would I be completely fine with just a new OE Mazda pump? I've never heard of having a billet oil pump being a bad thing really, just curious to be honest? I'm also a little interested in seeing what you guys used as far as bearings for your Mains, Rod, Thrust? ACL? King? Is there a difference in quality? I know that FM sells nothing but King bearings for their bottom ends, but my experience working with local friends and engine builders a lot of Honduh guys go with ACL and swear by them? Input?
Some will tell you to get billet opg just cause you don't want to go back in there later if they fail. Its not absolutely necessary. Esp on a street car. Regardless of what anyone says. But a GOOD idea. Many swear by ACL bearings and I've yet to hear anything bad about them. |
Might as well post the list of "planned" modifications for the top-end for you guys to oh so elegantly pick it apart and tell me whats overkill and whats not enough.
Head- 99 Head pretty much stock, just appropriately freshened up for use. This is still in the air just depending on whether or not I can find one for a good price, if not I have a 95 head laying around. Fuel- RX7 or RC 550s whichever I can get a better price on. Still up in the air if I NEED a dual feed rail? Also, whether its dual feed or not, what type of FPR I need to go with, assuming I cant get by with a stocker? 190hp Walbro pump. Manifold(exhaust)- Use my current ARTtech log manifold with EWG. Manifold(intake)- Trying to get "Gotpsi" to make me one ;) if not, I guess a stocker :( Cams-Stock Cam Gears-Stock Valvetrain- Planned for stock, mild work basically, 5 angle valve job but otherwise stock keepers and springs etc.... Do interject with good opinions if something needs to be done or doesnt need to be done. Good info can only help |
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