which turbo for 350bhp??
03 April 2011, 10:39 AM
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which turbo for 350bhp??
hi all im currently tuning my v1 sti up to 350bhp, i already have yellow injectors, a walbro fuel pump, aluminium pulley kit, billet flywheel, de-cat exhaust and a hks induction kit. I was gonna get a Hybrid FMIC but was unsure about which turbo to go for?? seen a lot of people on here use ones called 16G, 18G, 20G etc plus vf's but which is best for me? also if any1 knows which ecu is best (was gonna go for a simtek). Thanks, much appreciated 
03 April 2011, 10:59 AM
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Your standard turbo is a TD05 16G, I would get the car health checked, uprate the brakes (after market or atleast subaru 4 pots with uprated discs/pads), maybe a clutch (though you can replace that when your gearbox goes pop 
), after market ecu, gauges to see whats happening to your engine, knocklink or KS3 to also monitor what is happening under the bonnet, so not as cheap as you think if you want to do it correctly, but 350 is tops for reliability, I wouldnt even want to run that on an early car tbh.
Tony
), after market ecu, gauges to see whats happening to your engine, knocklink or KS3 to also monitor what is happening under the bonnet, so not as cheap as you think if you want to do it correctly, but 350 is tops for reliability, I wouldnt even want to run that on an early car tbh.Tony
03 April 2011, 03:53 PM
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Your standard turbo is a TD05 16G, I would get the car health checked, uprate the brakes (after market or atleast subaru 4 pots with uprated discs/pads), maybe a clutch (though you can replace that when your gearbox goes pop ), after market ecu, gauges to see whats happening to your engine, knocklink or KS3 to also monitor what is happening under the bonnet, so not as cheap as you think if you want to do it correctly, but 350 is tops for reliability, I wouldnt even want to run that on an early car tbh.
Tony
), after market ecu, gauges to see whats happening to your engine, knocklink or KS3 to also monitor what is happening under the bonnet, so not as cheap as you think if you want to do it correctly, but 350 is tops for reliability, I wouldnt even want to run that on an early car tbh.Tony
03 April 2011, 03:59 PM
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04 April 2011, 03:16 PM
#9
hi all im currently tuning my v1 sti up to 350bhp, i already have yellow injectors, a walbro fuel pump, aluminium pulley kit, billet flywheel, de-cat exhaust and a hks induction kit. I was gonna get a Hybrid FMIC but was unsure about which turbo to go for?? seen a lot of people on here use ones called 16G, 18G, 20G etc plus vf's but which is best for me? also if any1 knows which ecu is best (was gonna go for a simtek). Thanks, much appreciated
A TD05 16G turbo with all supporting mods which includes ported headers and matched uppipe will do around 340 bhp and a good one in favourable circumstances perhaps 350 bhp.
A good TD05 18G should do an easy 360 bhp with all supporting mods and a VF34 is about the same.
To do justice to a TD05-20G which is 380 bhp plus you need bigger injectors. 550cc.
Remember different rolling roads give different figures so these are only typical estimates.
As pointed out the TY752 gearbox in your car is not very strong and in time at 350 bhp it will break. The TY754 box as fitted to 5 speed cars M/Y 99 onwards is stronger. Driven intelligently they are good a long way past 400 bhp and there are several at 500 bhp plus where I guess life expectancy is greatly reduced.
04 April 2011, 04:17 PM
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Your yellow 440cc injectors will max out somewhere between 320 and 340 bhp subject to fuel pressure and even with an FPR will struggle to get to 350 bhp even with a good pressure lift.
A TD05 16G turbo with all supporting mods which includes ported headers and matched uppipe will do around 340 bhp and a good one in favourable circumstances perhaps 350 bhp.
A good TD05 18G should do an easy 360 bhp with all supporting mods and a VF34 is about the same.
To do justice to a TD05-20G which is 380 bhp plus you need bigger injectors. 550cc.
Remember different rolling roads give different figures so these are only typical estimates.
As pointed out the TY752 gearbox in your car is not very strong and in time at 350 bhp it will break. The TY754 box as fitted to 5 speed cars M/Y 99 onwards is stronger. Driven intelligently they are good a long way past 400 bhp and there are several at 500 bhp plus where I guess life expectancy is greatly reduced.
A TD05 16G turbo with all supporting mods which includes ported headers and matched uppipe will do around 340 bhp and a good one in favourable circumstances perhaps 350 bhp.
A good TD05 18G should do an easy 360 bhp with all supporting mods and a VF34 is about the same.
To do justice to a TD05-20G which is 380 bhp plus you need bigger injectors. 550cc.
Remember different rolling roads give different figures so these are only typical estimates.
As pointed out the TY752 gearbox in your car is not very strong and in time at 350 bhp it will break. The TY754 box as fitted to 5 speed cars M/Y 99 onwards is stronger. Driven intelligently they are good a long way past 400 bhp and there are several at 500 bhp plus where I guess life expectancy is greatly reduced.
Just to re-cap then i still need either an 18G turbo or a VFR, a FPR, and an up-pipe and ported headers (any idea where I can get these from). Oh and a new box but i think i will let this one run until the clutch goes which from the pedal position wont be too long
04 April 2011, 05:04 PM
#13
my friend had his v2 wrx mapped by paul @ zen,
esl,
fmic,
fpr,
440s,
apexi avcr,
apexi filter,
full 3in decated nur spec,
ported headers,
cartch tank,
excedy clutch,
Ported 16g @1.4bar
and made 352bhp on surrey rolling road
and another on a ra engine same spec but with a ppg and autronics ecu made 340/340 on JRM (sumo powers) rolling road again using a ported 16g
esl,
fmic,
fpr,
440s,
apexi avcr,
apexi filter,
full 3in decated nur spec,
ported headers,
cartch tank,
excedy clutch,
Ported 16g @1.4bar
and made 352bhp on surrey rolling road
and another on a ra engine same spec but with a ppg and autronics ecu made 340/340 on JRM (sumo powers) rolling road again using a ported 16g
04 April 2011, 06:26 PM
#14
Engine Specialist
I would say you would definately need an adjustable FPR to reach the 350s on 440s, though not ideal. Stick with the 16g TD05, very strong turbo, can definately take a lot of stick and get a FMIC off Harvey, he does some cracking kits which I've had on customers cars and made good power with.
Graham
Graham
04 April 2011, 07:59 PM
#16
ok mate, sounds like sound advice. I think i may aim for 320-340 then as this is only a temporary lift whilst i save for a stoker kit and all the associated mods. Can u recommend an e.c.u. and how much you would charge to fit it?
Just to re-cap then i still need either an 18G turbo or a VFR, a FPR, and an up-pipe and ported headers (any idea where I can get these from). Oh and a new box but i think i will let this one run until the clutch goes which from the pedal position wont be too long
Just to re-cap then i still need either an 18G turbo or a VFR, a FPR, and an up-pipe and ported headers (any idea where I can get these from). Oh and a new box but i think i will let this one run until the clutch goes which from the pedal position wont be too long
If you are happy to aim for 320 to 340 bhp that is within the range of your existing 440cc yellow injectors. It is also within the range of a TD05 16G and as already pointed out these are sturdy turbos so there is no need to go to the expense of a VF34 or TD05 18G.
If you want to go to the top end of the 320-340 power range then as Graham points out you will need a fuel pressure regulator. I can do a Fuelab fuel pressure regulator for £140 but you also need fittings including fuel rail adaptor and pressure guage and you may find that Lateral offer a complete kit. I can price the bits individually.
Ported headers and matched uppipe all DEI heat wrapped and with new studs will make your car livelier and add torque across the rev range. Not essential for what you are doing if you will accept something between 320 and 340 but if you want to get to the top end of that scale then neccessary. £369 exchange. Come to us and we will fit for a fixed £75. With your slanted intercooler you definately need a front mount at that power level and the Hybrid GT is £325 or GT2 £375. We cannot tell the difference in performance between the two. They both have tube and fin cores with the lowest pressure drop of any intercooler we have tested and they represent real value for money coupled with superlative performance.
As regards an ECU it depends on where you want to go from here. There are 2nd hand Apexi Power FCs on the market but that is now a dated option but can do a good job but if you buy the right ECU now it will see you through substantial developments on your 2.1 litre and I would recommend a Simtek which we can supply for £800 plus VAT fitted and mapped.
Come back if you want to ask more questions. Getting everything sorted out before you start so that you know where you are going and what you are going to do with a well thought out plan is the way to go. Unfortunately a lot of people get a good plan and then start chopping and changing so the results are often not as good as they could have been.
Also because you are not in a hurry to find a gearbox you can start looking out now for a well priced TY754 but the diff ratio has to match your existing rear diff. If you have that on the floor ready to fit the clutch and gearbox can be taken care of in one operation. We would charge £155 labour to swap your clutch and gearbox at the same time.
07 April 2011, 06:06 PM
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There is no single or simple answer and a lot depends on how much money you have to spend and what your future plans are but I will try and add to the information above.
If you are happy to aim for 320 to 340 bhp that is within the range of your existing 440cc yellow injectors. It is also within the range of a TD05 16G and as already pointed out these are sturdy turbos so there is no need to go to the expense of a VF34 or TD05 18G.
If you want to go to the top end of the 320-340 power range then as Graham points out you will need a fuel pressure regulator. I can do a Fuelab fuel pressure regulator for £140 but you also need fittings including fuel rail adaptor and pressure guage and you may find that Lateral offer a complete kit. I can price the bits individually.
Ported headers and matched uppipe all DEI heat wrapped and with new studs will make your car livelier and add torque across the rev range. Not essential for what you are doing if you will accept something between 320 and 340 but if you want to get to the top end of that scale then neccessary. £369 exchange. Come to us and we will fit for a fixed £75. With your slanted intercooler you definately need a front mount at that power level and the Hybrid GT is £325 or GT2 £375. We cannot tell the difference in performance between the two. They both have tube and fin cores with the lowest pressure drop of any intercooler we have tested and they represent real value for money coupled with superlative performance.
As regards an ECU it depends on where you want to go from here. There are 2nd hand Apexi Power FCs on the market but that is now a dated option but can do a good job but if you buy the right ECU now it will see you through substantial developments on your 2.1 litre and I would recommend a Simtek which we can supply for £800 plus VAT fitted and mapped.
Come back if you want to ask more questions. Getting everything sorted out before you start so that you know where you are going and what you are going to do with a well thought out plan is the way to go. Unfortunately a lot of people get a good plan and then start chopping and changing so the results are often not as good as they could have been.
Also because you are not in a hurry to find a gearbox you can start looking out now for a well priced TY754 but the diff ratio has to match your existing rear diff. If you have that on the floor ready to fit the clutch and gearbox can be taken care of in one operation. We would charge £155 labour to swap your clutch and gearbox at the same time.
If you are happy to aim for 320 to 340 bhp that is within the range of your existing 440cc yellow injectors. It is also within the range of a TD05 16G and as already pointed out these are sturdy turbos so there is no need to go to the expense of a VF34 or TD05 18G.
If you want to go to the top end of the 320-340 power range then as Graham points out you will need a fuel pressure regulator. I can do a Fuelab fuel pressure regulator for £140 but you also need fittings including fuel rail adaptor and pressure guage and you may find that Lateral offer a complete kit. I can price the bits individually.
Ported headers and matched uppipe all DEI heat wrapped and with new studs will make your car livelier and add torque across the rev range. Not essential for what you are doing if you will accept something between 320 and 340 but if you want to get to the top end of that scale then neccessary. £369 exchange. Come to us and we will fit for a fixed £75. With your slanted intercooler you definately need a front mount at that power level and the Hybrid GT is £325 or GT2 £375. We cannot tell the difference in performance between the two. They both have tube and fin cores with the lowest pressure drop of any intercooler we have tested and they represent real value for money coupled with superlative performance.
As regards an ECU it depends on where you want to go from here. There are 2nd hand Apexi Power FCs on the market but that is now a dated option but can do a good job but if you buy the right ECU now it will see you through substantial developments on your 2.1 litre and I would recommend a Simtek which we can supply for £800 plus VAT fitted and mapped.
Come back if you want to ask more questions. Getting everything sorted out before you start so that you know where you are going and what you are going to do with a well thought out plan is the way to go. Unfortunately a lot of people get a good plan and then start chopping and changing so the results are often not as good as they could have been.
Also because you are not in a hurry to find a gearbox you can start looking out now for a well priced TY754 but the diff ratio has to match your existing rear diff. If you have that on the floor ready to fit the clutch and gearbox can be taken care of in one operation. We would charge £155 labour to swap your clutch and gearbox at the same time.
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