Piggaz Posted May 31, 2013 Share Posted May 31, 2013 It's only 8.4:1 comp ratio isn't it? Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6872789 Share on other sites More sharing options...
Ants Posted May 31, 2013 Share Posted May 31, 2013 yep it sure is. Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6872792 Share on other sites More sharing options...
wolverine Posted May 31, 2013 Share Posted May 31, 2013 More boost + good tuning = still safe Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6872811 Share on other sites More sharing options...
gtr0321994 Posted May 31, 2013 Share Posted May 31, 2013 I know Paul.....I know. I'm just conservative and want to have an engine tuned to last as well (I will certainly not push my advance spec beyond 25psi). Your car is insane and would of loved to have a 2.8ltr with similar mods to yours Keen to see those graphs though. Look my dyno sheet is in the dyno section running -5 Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6872922 Share on other sites More sharing options...
KING87 Posted May 31, 2013 Share Posted May 31, 2013 I'm running 25 psi on -5's on a stock 2.6 and it's good to drive on the street. How long it will last is the old piece of string rule I guess. On a built motor push it as hard as you can I say Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873069 Share on other sites More sharing options...
Ants Posted May 31, 2013 Share Posted May 31, 2013 dude 25psi on stock 2.6 = BOOM!!! Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873078 Share on other sites More sharing options...
KING87 Posted May 31, 2013 Share Posted May 31, 2013 I'm confident it will hold up for a while and so is the tuner. Running e85 so it helps alot. Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873083 Share on other sites More sharing options...
(OO)SKYLINE(OO) Posted May 31, 2013 Share Posted May 31, 2013 I'm confident it will hold up for a while and so is the tuner. Running e85 so it helps alot. What power figure you making? Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873100 Share on other sites More sharing options...
Marko R1 Posted May 31, 2013 Share Posted May 31, 2013 I've popped 2 bottom ends on 23psi...ringland both times. It will let go, inevitable Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873102 Share on other sites More sharing options...
Ants Posted May 31, 2013 Share Posted May 31, 2013 What power figure you making? I'm gonna guess - 337rwkw Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873104 Share on other sites More sharing options...
Piggaz Posted May 31, 2013 Share Posted May 31, 2013 I've popped 2 bottom ends on 23psi...ringland both times. It will let go, inevitable Built or standard? Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873106 Share on other sites More sharing options...
KING87 Posted May 31, 2013 Share Posted May 31, 2013 Yeah I realise it will let go at some point but why not lean on it a little see how long it holds up. Making 430KW Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873108 Share on other sites More sharing options...
Ants Posted May 31, 2013 Share Posted May 31, 2013 (edited) Yeah I realise it will let go at some point but why not lean on it a little see how long it holds up. Making 430KW HOLY SH!T! Edited May 31, 2013 by Ants Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873115 Share on other sites More sharing options...
Marko R1 Posted May 31, 2013 Share Posted May 31, 2013 Both stock paul. Both tired/pushed engines Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873119 Share on other sites More sharing options...
(OO)SKYLINE(OO) Posted May 31, 2013 Share Posted May 31, 2013 I'm gonna guess - 337rwkw That would be a safe-ish figure for a stock RB26. But personally, I wouldn't push anything past 300 rwkW's on a stock RB26. Yeah I realise it will let go at some point but why not lean on it a little see how long it holds up. Making 430KW Fark! At the rears? 1 Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873120 Share on other sites More sharing options...
KING87 Posted May 31, 2013 Share Posted May 31, 2013 Nah 4WD dyno Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873121 Share on other sites More sharing options...
(OO)SKYLINE(OO) Posted May 31, 2013 Share Posted May 31, 2013 Nah 4WD dyno I see! Still a big power figure! Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873130 Share on other sites More sharing options...
Marko R1 Posted May 31, 2013 Share Posted May 31, 2013 That would be a safe-ish figure for a stock RB26. But personally, I wouldn't push anything past 300 rwkW's on a stock RB26. Under 300kw on a stock engine would be a good buffer. I was only running 325awkw when it let go. But then again I had a 89 gtr so the engine had a long life. Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873138 Share on other sites More sharing options...
Ants Posted May 31, 2013 Share Posted May 31, 2013 I see! Still a big power figure! understatement......I have deep reservations about that engine's longevity at that power / boost level ......I sure as hell would not want to be in the car when she goes BANG! Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873144 Share on other sites More sharing options...
Marko R1 Posted May 31, 2013 Share Posted May 31, 2013 That would be a safe-ish figure for a stock RB26. But personally, I wouldn't push anything past 300 rwkW's on a stock RB26. Under 300kw on a stock engine would be a good buffer. I was only running 325awkw when it let go. But then again I had a 89 gtr so the engine had a long life. Link to comment https://www.sau.com.au/forums/topic/254450-79s-or-5s-garretts/page/35/#findComment-6873145 Share on other sites More sharing options...
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