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450's?

Old 04-04-2009, 06:20 PM
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Default 450's?

how much hp can u get out of some 450's? And would a walbro 255 help getting to 300whp? Or is it not needed for 300whp?
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Old 04-04-2009, 07:42 PM
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YOU need to more specific there buddy...you boosted or n/a its pretty much useless unless boosted. All you going to do is over kill unless you have a strong built N/A. I put mine 450s in just to get a good idea how to run um and do a decent tune.Get what im coming from pimping
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Old 04-05-2009, 12:37 AM
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300whp is pushin it on 450's even with a walbro there almost maxed out at that point depending on your setup
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Old 04-05-2009, 06:33 PM
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It's a boosted z6 with big 16g turbo, and zex 59300 cam. Where can i get some injectors from on the cheap? How much whp would 750's support?
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Old 04-07-2009, 06:42 PM
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just check the forsale section.
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Old 04-08-2009, 03:43 AM
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Is your motor built, stock ,headwork other than the cam, front mount, what?, what kinda boost you runnin, and 750's will net you around a 450whp level on that pump
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Old 04-08-2009, 06:06 PM
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I run the 450cc at 53 psi tuned for excompany raceline and they run 78percent duty cycle making 238whp and 247 wtq on a f22bdohc with a ported 16g.
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Old 04-09-2009, 08:44 AM
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check the duty cycle value on your ROM editor
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Old 04-09-2009, 11:03 AM
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450's for 300 whp is plenty. My brother made 313hp with a t3 with his gsr and stock fuel pump. Then again, that was on a t3 and duty cycle was at 85-90%. As for a big 16g, i don't know. That's really pushing it for a small snail like that. I made 322hp on my 18g setup but that was with 750cc's ,a pump, and 14psi. Guess you won't know until you try.
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Old 04-10-2009, 03:50 PM
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Depends on what duty cycle you feel comfortable with. They can do over 300, but that's at 90-100%DC. You can get 550cc's from an EVO for cheap, and RX-7 injectors too. Also depends on how hard you push the 16g. 400+hp can be had from the big 16g, which would probably max out 550's, but that won't be happening at less than 25psi.
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