wot would i need to do to get 300lb/ft torque
01 January 2004, 12:04 PM
#1
i have a 1999 RB5 non wr, HKS super dragger system with HKS open neck d/p (full decat) and a pipercross induction kit.
on a PE rolling road seesion in produced 255bhp and 247lb/ft torque
the ECU is standard, no boost controllers or anything is is modded
i aint to fussed on the bhp, its the torque i'm after, thats where the power is, thats wot i want!!!
wot will i need to get more torque and wot sort of costs are involved?
on a PE rolling road seesion in produced 255bhp and 247lb/ft torque
the ECU is standard, no boost controllers or anything is is modded
i aint to fussed on the bhp, its the torque i'm after, thats where the power is, thats wot i want!!!
wot will i need to get more torque and wot sort of costs are involved?
01 January 2004, 12:43 PM
#2
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Try a bigger turbo, bigger fuel injectors and get the ecu sorted.
you should be looking at 2-3 grand depending on what parts you go for.
The best way to get advice is by calling tuning companies and asking them. I always do that before I buy any upgrades so I can make an informed choice. :-) (it's very easy to get it wrong)
you should be looking at 2-3 grand depending on what parts you go for.
The best way to get advice is by calling tuning companies and asking them. I always do that before I buy any upgrades so I can make an informed choice. :-) (it's very easy to get it wrong)
01 January 2004, 01:21 PM
#5
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You can get quite near that on a TD04 without changing it and you will have a nice mid-range for drivability. Along with a tek3, 3" catless exhaust, induction kit, up-rated fuel pump,possibly headers
I got 299bhp 292 lb/ft on my 01(without headers) on 1.35bar
scott
I got 299bhp 292 lb/ft on my 01(without headers) on 1.35bar
scott
01 January 2004, 01:22 PM
#6
I'd guess at £2k or just under.
Tek3 is about £700, Walbro stuff £160 or so and I'd imagine a turbo is going to be £750 or there abouts.
Panel filter £40 (airbox you should have), KL £140 & LL £80?
+ fitting, which I guess shouldn't be too hard.
Less if 2nd hand and you can do the fitting bit.
Your injectors are fine for 340bhp & are the same as STi5/6
[Edited by Puff The Magic Wagon! - 1/1/2004 1:23:32 PM]
Tek3 is about £700, Walbro stuff £160 or so and I'd imagine a turbo is going to be £750 or there abouts.
Panel filter £40 (airbox you should have), KL £140 & LL £80?
+ fitting, which I guess shouldn't be too hard.
Less if 2nd hand and you can do the fitting bit.
Your injectors are fine for 340bhp & are the same as STi5/6
[Edited by Puff The Magic Wagon! - 1/1/2004 1:23:32 PM]
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01 January 2004, 01:38 PM
#9
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Will you lot stop talking about modding!
I was just saying to someone last night that i'm happy with the Scoob as it is
Now i come on here and i can feel the Switch card twitching in my pocket 
Brun - 13 hours and 40 mins into 2004 and already planning to be skint
I was just saying to someone last night that i'm happy with the Scoob as it is
Now i come on here and i can feel the Switch card twitching in my pocket Brun - 13 hours and 40 mins into 2004 and already planning to be skint
01 January 2004, 01:47 PM
#10
you could just do what i did to get more torque and add an RA gearbox just got the car back so ive never had time to play with it plus the snow has me fecked, but the car pulls much quicker plus add a lightened flywheel as that makes good differnce to how the car pulls
01 January 2004, 02:09 PM
#11
An RA gearbox doesn't give you more torque, just reduces the gearing so that the torque you have is used at lower speeds/gears. Designed for acceleration with a lower top end. More gear changes required.
Downside to that is at m'way cruising speed, you'll be running higher revs & hence using more fuel.
Downside to that is at m'way cruising speed, you'll be running higher revs & hence using more fuel.
01 January 2004, 05:25 PM
#16
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Hey presto: It'll blow a piston because you shouldn't be running any mods on an STi without getting it remapped for UK fuel, even without the mods.
You'll need to make the same modifications to the STi as you would to the RB5.....just the STi engine is balanced and a fair bit tougher, but unless you're planning to go mad on the horsepower, I would stick with your existing setup, and get yourself a remap to start with. Your current limitation is the turbo, which as a TD04 will be reaching it's limits at 290bhp or thereabouts.
As this is the sort of region you are looking at, I'd just get a knocklink, maybe an uprated intercooler and get a remap: it should bring you very close to your target.
If you are looking to go a bit bigger, then a bigger turbo, uprated intercooler and remap should see you with 320-380bhp depending on how risky you want to be.
If you are looking to reliably run more than 350bhp, you need to start thinking about a rebuild, or buying that STi mentioned, though I suspect you are not looking for that much torque.
It is also worthy of comment that making too much torque too early will knacker your gearbox in no time, so your map will need to take account of this, bringing to torque in nice and linearly.
Just an overview of the options: there are more technical people who can give you better advice, but this gives you a rough idea of the spectrum of modifications.
Oh, and get a Knocklink.....it's £140 or so, and could save your engine: even on a standard car.
[Edited by Turbo_Steve - 1/1/2004 5:27:33 PM]
[Edited by Turbo_Steve - 1/1/2004 5:29:54 PM]
You'll need to make the same modifications to the STi as you would to the RB5.....just the STi engine is balanced and a fair bit tougher, but unless you're planning to go mad on the horsepower, I would stick with your existing setup, and get yourself a remap to start with. Your current limitation is the turbo, which as a TD04 will be reaching it's limits at 290bhp or thereabouts.
As this is the sort of region you are looking at, I'd just get a knocklink, maybe an uprated intercooler and get a remap: it should bring you very close to your target.
If you are looking to go a bit bigger, then a bigger turbo, uprated intercooler and remap should see you with 320-380bhp depending on how risky you want to be.
If you are looking to reliably run more than 350bhp, you need to start thinking about a rebuild, or buying that STi mentioned, though I suspect you are not looking for that much torque.
It is also worthy of comment that making too much torque too early will knacker your gearbox in no time, so your map will need to take account of this, bringing to torque in nice and linearly.
Just an overview of the options: there are more technical people who can give you better advice, but this gives you a rough idea of the spectrum of modifications.
Oh, and get a Knocklink.....it's £140 or so, and could save your engine: even on a standard car.
[Edited by Turbo_Steve - 1/1/2004 5:27:33 PM]
[Edited by Turbo_Steve - 1/1/2004 5:29:54 PM]
01 January 2004, 05:59 PM
#17
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m8 i have ran a sti 5 for a year and a half on optimax + nf booster with no remap.full decat and cone filter no probs make about 320 bhp and 300 lbs torque plus the car is sellable when the time comes which another thing u must take into account
just my 2p worth
just my 2p worth
01 January 2004, 08:26 PM
#18
cheers buys, but as i have said that its not the bhp side i want to increase, its the torque
if i added eq length headers will i gain more torque without needing more boost?
as already said the injectors are 440's so can run to a lot more hp's
i know going td05, fmic, tek3, induction kit & uprated fuel pump will get me those horses but as i say, more interested in just upping the torque
if i added eq length headers will i gain more torque without needing more boost?
as already said the injectors are 440's so can run to a lot more hp's
i know going td05, fmic, tek3, induction kit & uprated fuel pump will get me those horses but as i say, more interested in just upping the torque
02 January 2004, 12:01 AM
#19
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TBH mate, torque / bhp are linked anyway: I cannot remember the maths, but bhp is a function of the torque figure, so more of one TENDS to lead to more of t'other (though this doesn't HAVE to be true).
Certainly, I would try the remap and maybe TMIC on yours first: the mapper should be able to aim for torque rather than bhp.
The figure you specified (300lb/ft) should be NEARLY acheievable on your standard setup...you MIGHT need an uprated intercooler.
IF you want to guarantee it then I would go for TD05, headers, full decat, remap, up the fuel pressure and get a FMIC, though you may find the car less driveable, as the TD05 is that much bigger than the TD04 you may notice some significant lag.
It all really depends how much you want to spend?
Mr.Terminator: How many miles a day does your STi5 do? Do you run high revs a lot? Is it mostly motorway miles? Do you only drive it in the dry when it's fairly warm, so charge temps aren't too high?
And how many miles have you done in a year and a half. Do you have a knocklink? If you don't have a knocklink, or det cans, how do you KNOW the car is running fine? You could be making more boost than the map intended at high revs on a cold day, getting detonation and not knowing it. Certainly if you thrash the nuts off your car every day for 20miles and it's a year and a half down the line then the octane booster & optimax is obviously working for you. But I think you'll find the most people on here would reccomend against what you are doing without a remap...especially if you do not have a knocklink, as it may go bang with no warning. The ECU has only got 20degress retardation on the ignition (IIRC) and once that's gone, if you're detting, you're detting.
I don't disbelieve that your car is running fine, just that plenty of people have blown engines, and I would advise caution.
Incidentally, if you remap the car, it's still reversable. In fact, most people will buy an STi with or without a rema: anyone in the know will in fact prefer it, especially if the map is from someone reputable: I can't see how it would effect the resale all that much to anyone who has the slightest clue about imported cars.
Certainly, I would try the remap and maybe TMIC on yours first: the mapper should be able to aim for torque rather than bhp.
The figure you specified (300lb/ft) should be NEARLY acheievable on your standard setup...you MIGHT need an uprated intercooler.
IF you want to guarantee it then I would go for TD05, headers, full decat, remap, up the fuel pressure and get a FMIC, though you may find the car less driveable, as the TD05 is that much bigger than the TD04 you may notice some significant lag.
It all really depends how much you want to spend?
Mr.Terminator: How many miles a day does your STi5 do? Do you run high revs a lot? Is it mostly motorway miles? Do you only drive it in the dry when it's fairly warm, so charge temps aren't too high?
And how many miles have you done in a year and a half. Do you have a knocklink? If you don't have a knocklink, or det cans, how do you KNOW the car is running fine? You could be making more boost than the map intended at high revs on a cold day, getting detonation and not knowing it. Certainly if you thrash the nuts off your car every day for 20miles and it's a year and a half down the line then the octane booster & optimax is obviously working for you. But I think you'll find the most people on here would reccomend against what you are doing without a remap...especially if you do not have a knocklink, as it may go bang with no warning. The ECU has only got 20degress retardation on the ignition (IIRC) and once that's gone, if you're detting, you're detting.
I don't disbelieve that your car is running fine, just that plenty of people have blown engines, and I would advise caution.
Incidentally, if you remap the car, it's still reversable. In fact, most people will buy an STi with or without a rema: anyone in the know will in fact prefer it, especially if the map is from someone reputable: I can't see how it would effect the resale all that much to anyone who has the slightest clue about imported cars.
02 January 2004, 12:09 AM
#20
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turbo steve
knocklink - yes
10 - 12k per year on ave
all weather conditions
redline most certanly
just dont be stingy on the nf its ok
no motorway miles
boost gauge yes about 18 psi peak
no problems
[Edited by The Terminator wrx - 1/2/2004 12:10:58 AM]
knocklink - yes
10 - 12k per year on ave
all weather conditions
redline most certanly
just dont be stingy on the nf its ok
no motorway miles
boost gauge yes about 18 psi peak
no problems
[Edited by The Terminator wrx - 1/2/2004 12:10:58 AM]
02 January 2004, 12:18 AM
#21
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Why not get involved with the GEMS group Buy and get Steve simpson to mar it properly for you I am sure he is a top mapper. and the group nuy price is a cracking offer. Ok me and Widnows is running it
02 January 2004, 12:22 AM
#22
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Fair enough Terminator. The knocklink is a really good idea, as you will agree. As has been proven one engine differs very much from another, so it pays to be cautious. I would still reccomend a remap, as the benefits in driveability are unreal: The japanese maps are not rated by most mappers, as a lot more can be got from the car, with a lot less gearchanging and lag etc etc.I am certainly NOT criticising NF, which has got me out of many a scrape when I cannot find a shell garage
02 January 2004, 09:43 AM
#25
wrc cars have really high boost as they know they are going to rebuild the engine, if all you are after is the same as me that all important acceleration factor, 1 st i would like i said before get a lightend flywheel you car will develop less torque on the rollers due to a lightend flywheel but will give you the disired effect that you are after
i think the flywheel is one of my better mods, and for how cheap it is for what the car pulls like after it is done
i think the flywheel is one of my better mods, and for how cheap it is for what the car pulls like after it is done
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