# Few General SR20DET Questions???  Experts, help me out

**URL:** https://forums.speedlife.net/t/few-general-sr20det-questions-experts-help-me-out/110453
**Category:** SON240sx Automotive
**Created:** [October 22, 2007, 4:06pm UTC](https://forums.speedlife.net/t/few-general-sr20det-questions-experts-help-me-out/110453 "2007-10-22T16:06:44Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![Fobwall](https://avatars.discourse-cdn.com/v4/letter/f/7ea924/32.png) [@Fobwall](https://forums.speedlife.net/u/Fobwall)
#### Post date: [October 22, 2007, 9:37pm UTC](https://forums.speedlife.net/t/few-general-sr20det-questions-experts-help-me-out/110453/4 "2007-10-22T21:37:35Z")

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> [@FS: Del Sol Red stripe seats](https://forums.speedlife.net/t/fs-del-sol-red-stripe-seats/12876/23):
>
> How about the stock fuel rails? Will they be able to flow 720cc injectors without choking? I know that gen2 3sgte fuel rails choke at around 300hp on stock injectors. However, you shouldn’t be pushing that much anyways on a stock mr2 fuel system as it’s not safe.
> 
> In terms of the gt2871r .86, wouldn’t you have to run super high boost to get 400hp?

Stock fuel rail with 740cc injectors should be fine. A lot of people do it and have done it. Never heard of any problems to be honest.

I’m not sure how many psi you’d have to run specifically, I’m sure there are guys on this board that know. But I’d assume maybe 18 to 20lbs of boost?

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