400BHP TURBO
17 August 2012, 11:05 PM
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400BHP TURBO
Hi there looking for a turbo to make as above fiqure as my engine has started to knock so want to get everything together for it car is v5 sti spec is so far front mount,headers (rcm) upipe,downpipe,3" exhaust system (hks)uprated fuel pump,got a version 8 shortmotor to build on need decent injectors, turbo and ecu to make that sort of fiqure at moment running vf34 and what intake to go for aswell, hoping the box will be ok for around that mark with uprated clutch and flywheel as only want for weekends as second car thanks in advance
18 August 2012, 11:09 AM
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18 August 2012, 11:36 AM
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Which gearbox are you looking at running? Because if you want relability and the ability to actually use 400 brake then you'll need something stronger than a standard 5 speed - trust me.
18 August 2012, 11:41 AM
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,some break,some dont,if it breaks you replace/upgrade,it the same scenario if a shock absorber fails,or a turbo fails,just another part to replace,many 5 speed have run this sort of power without issues,some have broken,its the name of the game.there is no point scare mongering everyone that goes abouve the power you are running just because your box has broken in the past,it dosent mean that someone with the same box running even more power is going to have gearbox break.its luck of the draw and not everyone wants to upgrade to a six speed.
18 August 2012, 12:23 PM
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always going on about the gearbox,some break,some dont,if it breaks you replace/upgrade,it the same scenario if a shock absorber fails,or a turbo fails,just another part to replace,many 5 speed have run this sort of power without issues,some have broken,its the name of the game.there is no point scare mongering everyone that goes abouve the power you are running just because your box has broken in the past,it dosent mean that someone with the same box running even more power is going to have gearbox break.its luck of the draw and not everyone wants to upgrade to a six speed.
,some break,some dont,if it breaks you replace/upgrade,it the same scenario if a shock absorber fails,or a turbo fails,just another part to replace,many 5 speed have run this sort of power without issues,some have broken,its the name of the game.there is no point scare mongering everyone that goes abouve the power you are running just because your box has broken in the past,it dosent mean that someone with the same box running even more power is going to have gearbox break.its luck of the draw and not everyone wants to upgrade to a six speed.Bla bla bla, many more gearboxes have broken at a lot less than 400 brake. The OP may not necessarily be aware that the 5-speed isn't designed to cope with that kind of power, so it's not scare mongering from me or others, it's advice, which is what forums are for. Just because you didn't want to cough up for a 6 speed or stronger 5 speed PPG, (and danced around gradually raising your power figures hoping people would tell you what you wanted to hear), doesn't mean that others will follow the same path.
The gearbox went in my old UK classic 5 years ago. The scenario was the car had 135,000 miles on it, with 65,000 on the rebuilt engine. The engine prior to my ownership was rebuilt under warranty after a failed oil pump. But also prior to me purchasing it, it was running circa 300-350bhp without my knowledge and returned to standard prior to my purchase of the car. That and the high miles were the cause of the gearbox failure.
Just because you and a few others may have been lucky or simply not used the power to it's extent or potential does not also mean that the majority are going to be fine. I'll say again, I'm not scare mongering, but I am saying it how it generally is rather than telling someone something they want to hear.
Over and out.
Last edited by chocolate_o_brian; 18 August 2012 at 12:25 PM.
18 August 2012, 12:52 PM
#12
Bla bla bla, many more gearboxes have broken at a lot less than 400 brake. The OP may not necessarily be aware that the 5-speed isn't designed to cope with that kind of power, so it's not scare mongering from me or others, it's advice, which is what forums are for. Just because you didn't want to cough up for a 6 speed or stronger 5 speed PPG, (and danced around gradually raising your power figures hoping people would tell you what you wanted to hear), doesn't mean that others will follow the same path.
The gearbox went in my old UK classic 5 years ago. The scenario was the car had 135,000 miles on it, with 65,000 on the rebuilt engine. The engine prior to my ownership was rebuilt under warranty after a failed oil pump. But also prior to me purchasing it, it was running circa 300-350bhp without my knowledge and returned to standard prior to my purchase of the car. That and the high miles were the cause of the gearbox failure.
Just because you and a few others may have been lucky or simply not used the power to it's extent or potential does not also mean that the majority are going to be fine. I'll say again, I'm not scare mongering, but I am saying it how it generally is rather than telling someone something they want to hear.
Over and out.
The gearbox went in my old UK classic 5 years ago. The scenario was the car had 135,000 miles on it, with 65,000 on the rebuilt engine. The engine prior to my ownership was rebuilt under warranty after a failed oil pump. But also prior to me purchasing it, it was running circa 300-350bhp without my knowledge and returned to standard prior to my purchase of the car. That and the high miles were the cause of the gearbox failure.
Just because you and a few others may have been lucky or simply not used the power to it's extent or potential does not also mean that the majority are going to be fine. I'll say again, I'm not scare mongering, but I am saying it how it generally is rather than telling someone something they want to hear.
Over and out.
everytime someone mentions modding,you jump on and say"what gearbox you running,it will break trust me".
if the op is unaware of the 5 speed situation then all good,but even top tuners will say the same,its luck of the draw.just because someone wants to run over 300bhp dosent mean they need a six speed or ppg.
just stop being so hasty about the 5 speed.
18 August 2012, 12:57 PM
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Bla bla bla, many more gearboxes have broken at a lot less than 400 brake. The OP may not necessarily be aware that the 5-speed isn't designed to cope with that kind of power, so it's not scare mongering from me or others, it's advice, which is what forums are for. Just because you didn't want to cough up for a 6 speed or stronger 5 speed PPG, (and danced around gradually raising your power figures hoping people would tell you what you wanted to hear), doesn't mean that others will follow the same path.
The gearbox went in my old UK classic 5 years ago. The scenario was the car had 135,000 miles on it, with 65,000 on the rebuilt engine. The engine prior to my ownership was rebuilt under warranty after a failed oil pump. But also prior to me purchasing it, it was running circa 300-350bhp without my knowledge and returned to standard prior to my purchase of the car. That and the high miles were the cause of the gearbox failure.
Just because you and a few others may have been lucky or simply not used the power to it's extent or potential does not also mean that the majority are going to be fine. I'll say again, I'm not scare mongering, but I am saying it how it generally is rather than telling someone something they want to hear.Over and out.
The gearbox went in my old UK classic 5 years ago. The scenario was the car had 135,000 miles on it, with 65,000 on the rebuilt engine. The engine prior to my ownership was rebuilt under warranty after a failed oil pump. But also prior to me purchasing it, it was running circa 300-350bhp without my knowledge and returned to standard prior to my purchase of the car. That and the high miles were the cause of the gearbox failure.
Just because you and a few others may have been lucky or simply not used the power to it's extent or potential does not also mean that the majority are going to be fine. I'll say again, I'm not scare mongering, but I am saying it how it generally is rather than telling someone something they want to hear.
Over and out.
Last edited by trails; 18 August 2012 at 01:00 PM.
18 August 2012, 01:15 PM
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18 August 2012, 01:20 PM
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everytime someone mentions modding,you jump on and say"what gearbox you running,it will break trust me".
if the op is unaware of the 5 speed situation then all good,but even top tuners will say the same,its luck of the draw.just because someone wants to run over 300bhp dosent mean they need a six speed or ppg.
just stop being so hasty about the 5 speed.
if the op is unaware of the 5 speed situation then all good,but even top tuners will say the same,its luck of the draw.just because someone wants to run over 300bhp dosent mean they need a six speed or ppg.
just stop being so hasty about the 5 speed.
Last edited by chocolate_o_brian; 18 August 2012 at 01:21 PM.
18 August 2012, 01:23 PM
#18
i am more than aware of the 5 speed situation.yes 1 gearbox may break at this level,others may not,also depending on which model code gearbox,torque,driver..
this is never ending and has been covered so many times.we don need to keep going over and over it.
this is never ending and has been covered so many times.we don need to keep going over and over it.
18 August 2012, 01:23 PM
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Supporting mods - i.e. gearbox
Nah, **** it, as a mates sisters illegitimate childs, grandfathers boyfriend once ran 500bhp and 450lbft through a standard 5 speed, it means all MUST be fine at that power level and more. But because I'm a careful driver, mine will never blow up
18 August 2012, 01:32 PM
#20
Supporting mods - i.e. gearbox
Nah, **** it, as a mates sisters illegitimate childs, grandfathers boyfriend once ran 500bhp and 450lbft through a standard 5 speed, it means all MUST be fine at that power level and more. But because I'm a careful driver, mine will never blow up
Nah, **** it, as a mates sisters illegitimate childs, grandfathers boyfriend once ran 500bhp and 450lbft through a standard 5 speed, it means all MUST be fine at that power level and more. But because I'm a careful driver, mine will never blow up
you really are hung up on this gearbox mailarkee arent you?
i do agree with most you say,but its not made in stone.
i see both points yours and mine,and they are alot of depends on this,depends on that.
but i certainly would not try and run 400lb ft through a 5 speed.
18 August 2012, 01:40 PM
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Have a look at this link, it gives you all the gearbox information you could ever need including the codes to help identify which flavour 'box it is and therefore how appropriate it is to the number of torques you are after.
http://spda-online.ca/content.php?44-transmission-chart
18 August 2012, 01:45 PM
#23
As the OP is a newbie I think it’s a little harsh to criticise CoB for providing helpful information, particularly in the context of increasing the OE power output by over a third.
Have a look at this link, it gives you all the gearbox information you could ever need including the codes to help identify which flavour 'box it is and therefore how appropriate it is to the number of torques you are after.
http://spda-online.ca/content.php?44-transmission-chart
Have a look at this link, it gives you all the gearbox information you could ever need including the codes to help identify which flavour 'box it is and therefore how appropriate it is to the number of torques you are after.
http://spda-online.ca/content.php?44-transmission-chart
hi ive looked into the gearbox thing as much as i could and ive researched loads,i just find a little ennoying when as soon as someone asks about modding,cob straight away jumps on the gearbox situation.
but yes,as op is newbie and may not know this then i apologise for the critisim,i just think whoever the op may be there are two sides to the gearbox theory.
18 August 2012, 01:49 PM
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You may think I jump on but I don't. I may have on threads of yours but only as banter and it's obviously wound you up - job done 
I'll continue to offer the advice I have in here with regards to power hikes and the drivetrain taking this. As I will with regards to suspension and brake upgrades, from past experience also. I'll also continue to air my opinions on various other topics including graphics, VTA dumpvalves and the general decline of the subaru marque for several reasons. That won't stop so you're more than welcome to stick me on ignore if you don't like what I write.
I'll continue to offer the advice I have in here with regards to power hikes and the drivetrain taking this. As I will with regards to suspension and brake upgrades, from past experience also. I'll also continue to air my opinions on various other topics including graphics, VTA dumpvalves and the general decline of the subaru marque for several reasons. That won't stop so you're more than welcome to stick me on ignore if you don't like what I write.
18 August 2012, 02:04 PM
#25
You may think I jump on but I don't. I may have on threads of yours but only as banter and it's obviously wound you up - job done
I'll continue to offer the advice I have in here with regards to power hikes and the drivetrain taking this. As I will with regards to suspension and brake upgrades, from past experience also. I'll also continue to air my opinions on various other topics including graphics, VTA dumpvalves and the general decline of the subaru marque for several reasons. That won't stop so you're more than welcome to stick me on ignore if you don't like what I write.
I'll continue to offer the advice I have in here with regards to power hikes and the drivetrain taking this. As I will with regards to suspension and brake upgrades, from past experience also. I'll also continue to air my opinions on various other topics including graphics, VTA dumpvalves and the general decline of the subaru marque for several reasons. That won't stop so you're more than welcome to stick me on ignore if you don't like what I write.
its not that i dislike what you write,i just think you should also point out there are many different different specs/options and to make the op aware of this also.but if i want any advice on dump valves ill come to you.
i have no issues with you cob,just sometimes have a slightly different opinion which we are all entitled to,including yourself.
18 August 2012, 10:43 PM
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19 August 2012, 12:18 PM
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Supporting mods - i.e. gearbox
Nah, **** it, as a mates sisters illegitimate childs, grandfathers boyfriend once ran 500bhp and 450lbft through a standard 5 speed, it means all MUST be fine at that power level and more. But because I'm a careful driver, mine will never blow up
Nah, **** it, as a mates sisters illegitimate childs, grandfathers boyfriend once ran 500bhp and 450lbft through a standard 5 speed, it means all MUST be fine at that power level and more. But because I'm a careful driver, mine will never blow up