# SR20DET QUESTION? **URL:** \ **Category:** SON240sx Automotive\ **Created:** [February 14, 2006, 9:42pm UTC](https://forums.speedlife.net/t/sr20det-question/92892 "2006-02-14T21:42:21Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![modded](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@modded](https://forums.speedlife.net/u/modded)\ **Post date:** [February 14, 2006, 9:42pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/1 "2006-02-14T21:42:21Z")
Does anyone have an idea how much boost a stock bottom end can hold safely?(SR20DET) I heard @ 18psi is that true… Or false?? ---
**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\ **Post date:** [February 15, 2006, 5:46am UTC](https://forums.speedlife.net/t/sr20det-question/92892/2 "2006-02-15T05:46:04Z")
it can hold ~400bhp what ever boost you need to get there on what ever turbo your running makes no differeace. ---
**Author:** ![S13GG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s13gg/32/5506_2.png) [@S13GG](https://forums.speedlife.net/u/S13GG)\ **Post date:** [February 15, 2006, 6:30am UTC](https://forums.speedlife.net/t/sr20det-question/92892/3 "2006-02-15T06:30:18Z")
I heard the stock T25 losses grunt after 14psi, stock injectors maxed…? motor, on a stock headgasket, 18psi would be too much of a gamble for my liking ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [February 15, 2006, 6:32am UTC](https://forums.speedlife.net/t/sr20det-question/92892/4 "2006-02-15T06:32:52Z")
Ya I would not go over 15psi On the stock head Gasket and that is if it is in good shape ---
**Author:** ![lewtz](https://avatars.discourse-cdn.com/v4/letter/l/439d5e/32.png) [@lewtz](https://forums.speedlife.net/u/lewtz)\ **Post date:** [February 15, 2006, 6:40am UTC](https://forums.speedlife.net/t/sr20det-question/92892/5 "2006-02-15T06:40:33Z")
stock t25’s, most is 16 psi, after that it doesnt do anything and your just killing the turbo. ---
**Author:** ![bing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bing/32/7211_2.png) [@bing](https://forums.speedlife.net/u/bing)\ **Post date:** [February 15, 2006, 8:02am UTC](https://forums.speedlife.net/t/sr20det-question/92892/6 "2006-02-15T08:02:00Z")
stock bottom end has gone up to 500rwhp but ~ 400whp is more realistic if well tuned. if improperly tuned you’d be lukcy to hit 300. stock mafs and turbo are only good till 250, maybe a hair higher stock injectors give out before 275whp you should have a metal headgasket and ARP studs when you upgrade any of these parts for reiabilties sake. good luck running more than 300whp on stock headgasket. ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [February 15, 2006, 10:39am UTC](https://forums.speedlife.net/t/sr20det-question/92892/7 "2006-02-15T10:39:21Z")
someone send me a link of a stockheadgasket failing doesnt happen below 350 stop with the lies stock block sr can hold tons of power as long as you give it enough fuel and dont put in too much spark if you dont take care of it it is really easy to blow it up any power level above 350whp ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [February 15, 2006, 11:09am UTC](https://forums.speedlife.net/t/sr20det-question/92892/8 "2006-02-15T11:09:53Z")
> [@bing](#): > > stock injectors give out before 275whp Injectors are maxed by 10-11psi (98+% Duty) and odds of hitting 250whp @ even 16psi is very slim ---
**Author:** ![modded](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@modded](https://forums.speedlife.net/u/modded)\ **Post date:** [February 15, 2006, 11:17am UTC](https://forums.speedlife.net/t/sr20det-question/92892/9 "2006-02-15T11:17:26Z")
i heard that the motor is aluminum with iron sleeves and solid deck… Anyone has any pics of short block? ---
**Author:** ![Hector](https://avatars.discourse-cdn.com/v4/letter/h/43a26b/32.png) [@Hector](https://forums.speedlife.net/u/Hector)\ **Post date:** [February 15, 2006, 8:15pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/10 "2006-02-15T20:15:17Z")
edited due to me brain is shut off ---
**Author:** ![modded](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@modded](https://forums.speedlife.net/u/modded)\ **Post date:** [February 15, 2006, 8:26pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/11 "2006-02-15T20:26:57Z")
Dumb… Ass ![http://modifiedsociety.com/forum/Smileys/default/bj.gif](http://modifiedsociety.com/forum/Smileys/default/bj.gif) Wanna know if it has a solid deck…? u know where the head bolts on to ---
**Author:** ![Hector](https://avatars.discourse-cdn.com/v4/letter/h/43a26b/32.png) [@Hector](https://forums.speedlife.net/u/Hector)\ **Post date:** [February 15, 2006, 8:30pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/12 "2006-02-15T20:30:32Z")
of course it has a solid deck , and of course it has iron sleves, aluminium would melt, i guess u couldnt see the sarcasam in my last post sorry, yes all aluminium with the exeption of the iron sleeves, yes the block deck is solid ---
**Author:** ![modded](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@modded](https://forums.speedlife.net/u/modded)\ **Post date:** [February 15, 2006, 8:40pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/13 "2006-02-15T20:40:26Z")
thanks man… Was that so hard… ![http://modifiedsociety.com/forum/Smileys/default/36_1_12.gif](http://modifiedsociety.com/forum/Smileys/default/36_1_12.gif) ---
**Author:** ![Hector](https://avatars.discourse-cdn.com/v4/letter/h/43a26b/32.png) [@Hector](https://forums.speedlife.net/u/Hector)\ **Post date:** [February 17, 2006, 4:17pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/14 "2006-02-17T16:17:23Z")
kinda , sorry i have a hard time noit being a dick , but i hope that helps ---
**Author:** ![DTS](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@DTS](https://forums.speedlife.net/u/DTS)\ **Post date:** [February 18, 2006, 7:59am UTC](https://forums.speedlife.net/t/sr20det-question/92892/15 "2006-02-18T07:59:36Z")
> [@Benson240sx](#): > > Ya I would not go over 15psi On the stock head Gasket and that is if it is in good shape lol i love it when people makeup info theres people running 400 whp daily driven on the stock headgasket. and one person on FA who had a boost spike shooting him up to 465 whp and the head gasket survived. ---
**Author:** ![Fobwall](https://avatars.discourse-cdn.com/v4/letter/f/7ea924/32.png) [@Fobwall](https://forums.speedlife.net/u/Fobwall)\ **Post date:** [February 18, 2006, 8:38am UTC](https://forums.speedlife.net/t/sr20det-question/92892/16 "2006-02-18T08:38:03Z")
Well DTS, keyword is SOME. Like there are some people who have hit high 300s in a ka-t on stock internals. But that is just some people. Not everyone can run 400whp daily driven on a stock headgasket in an SR. The SR engine isn’t invincible. ---
**Author:** ![mr200](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mr200/32/5495_2.png) [@mr200](https://forums.speedlife.net/u/mr200)\ **Post date:** [February 19, 2006, 3:53pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/17 "2006-02-19T15:53:16Z")
We bought a used SR with a blown headgasket, and it was stock. Spilner’s headgasket popped, and there’s no way he was running 400 whp. You can’t just guess when a motor will or won’t fail unless it’s fresh. Does your SR knock, or in any way start/run like a bag of crap? Odds are it won’t hold much over what it’s pushing now. Some guys can’t keep stock SRs from blowing apart and some people have 400whp daily drivers. Typically you WANT a headgasket to pop. It keeps the motor from going pop instead. Better head bolts (like new OEM even) will help keep the head from lifting. ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [February 19, 2006, 6:03pm UTC](https://forums.speedlife.net/t/sr20det-question/92892/18 "2006-02-19T18:03:46Z")
> [@DTS](#): > > lol i love it when people makeup info lol yea its funny, happenes all the time, and when you ask something or state seomthing there all like ‘nope’ or they say ‘no!’ and just reword the same thing, and have absolutely no way to support theyr facts, the world is full of people like that