View Poll Results: T4 or Gt30
T4
53
36.30%
GT30
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63.70%
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t4 or Gt30 for 500bhp
09-09-2008, 01:59 PM
#81
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Its all horses for courses, you can achive 500bhp either with T4 or GT30 so its bascially all down to the tuner you use as to what they prefer/what they recommend or what you personnaly want to achive with your own engine and how much you want to throw at it.
Personnaly i went the T4 route and am more than happy with the outcome
09-09-2008, 02:04 PM
#82
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Nice statement!? is that based on a poorly specked engine running T4 then? Nothing wrong with a well specked engine and a T4 either mate.
Its all horses for courses, you can achive 500bhp either with T4 or GT30 so its bascially all down to the tuner you use as to what they prefer/what they recommend or what you personnaly want to achive with your own engine and how much you want to throw at it.
Personnaly i went the T4 route and am more than happy with the outcome
Its all horses for courses, you can achive 500bhp either with T4 or GT30 so its bascially all down to the tuner you use as to what they prefer/what they recommend or what you personnaly want to achive with your own engine and how much you want to throw at it.
Personnaly i went the T4 route and am more than happy with the outcome
Or should i attack you for not going the gt-35 route that i am?
09-09-2008, 02:06 PM
#84
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09-09-2008, 02:09 PM
#86
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P.S if i wanted to go GT35 I could have but i think 500BHP is more than enough for a road car!
09-09-2008, 02:13 PM
#87
Too many posts.. I need a life!!
Nice statement!? is that based on a poorly specked engine running T4 then? Nothing wrong with a well specked engine and a T4 either mate.
Its all horses for courses, you can achive 500bhp either with T4 or GT30 so its bascially all down to the tuner you use as to what they prefer/what they recommend or what you personnaly want to achive with your own engine and how much you want to throw at it.
Personnaly i went the T4 route and am more than happy with the outcome
Its all horses for courses, you can achive 500bhp either with T4 or GT30 so its bascially all down to the tuner you use as to what they prefer/what they recommend or what you personnaly want to achive with your own engine and how much you want to throw at it.
Personnaly i went the T4 route and am more than happy with the outcome
i was only saying i ithink they are better to drive and yes you are right its up to what the perticular person wants
09-09-2008, 02:14 PM
#88
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To be honest, i would actually agree with him, BUT the new t4 with gt housing and ballbearings are actually good for an internal wg turbo, but a gt 3076 on external wg will beat it if u ask me
09-09-2008, 02:16 PM
#89
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09-09-2008, 02:19 PM
#91
Nope. See previous page 
. The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.
There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
. The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
09-09-2008, 02:20 PM
#92
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Yep you are probably right, but is the person who only uses there car on the road (eg motorway madness), going to really notice the difference between the T4 and GT30? if both are on properly specked engines for 500 BHP?
09-09-2008, 02:22 PM
#93
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Nope. See previous page . The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.
There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
. The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
09-09-2008, 02:31 PM
#95
Too many posts.. I need a life!!
Nope. See previous page . The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.
There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
. The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
09-09-2008, 02:45 PM
#98
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Nope. See previous page . The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.
There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
. The point I was making is that it is possible to have the best of both worlds (strength of a T4 / response of a GT30), by applying current technology to older turbos. This then negates all the issues with packaging, reliability (turbo and wastegate) and additional costs required with an externally gated turbo.There would have to be some SERIOUS improvements for me to switch to a GT turbo (I only want 500bhp), and there are NONE at this power level, only what people "assume" as they have not explored the other possibilities, or are basing their opinion on poorly specced T4 engines (there is NOTHING worse than a poorly specced T4 engine for lag and response).
What does a fully modified t4 coast? 1400Ł something?
I gt30 is arround 850Ł plus 200 for the manifold + 200 for a cheap wg + 50 for some pipe fo the dp and 120 for a boost controler.
Hmmmm, i´m thinking gt30 here
09-09-2008, 02:56 PM
#100
PassionFord Post Troll
Mike i still think its is funny that you think someone with the development budget/facilities like Honeywell/garrett would develop a turbo that WASN'T any better than something they produced 25 years ago.
There have been huge advances in most technologies over the past 25 years so why would you not expect this to apply to turbochargers??
I can just see it now...
Mrs Rainbird - "Mikewoo woo, i want the 48 inch LCD with HD, dolby surround sound and built in sky plus hard drive"
Mike - " Sorry honey, you just cany beat a cathode ray tube and that crisp mono sound"
There have been huge advances in most technologies over the past 25 years so why would you not expect this to apply to turbochargers??
I can just see it now...
Mrs Rainbird - "Mikewoo woo, i want the 48 inch LCD with HD, dolby surround sound and built in sky plus hard drive"
Mike - " Sorry honey, you just cany beat a cathode ray tube and that crisp mono sound"
Last edited by Garage19; 09-09-2008 at 02:57 PM.
09-09-2008, 02:58 PM
#101
Too many posts.. I need a life!!
Mike i still think its is funny that you think someone with the development budget/facilities like Honeywell/garrett would develop a turbo that WASN'T any better than something they produced 25 years ago.
There have been huge advances in most technologies over the past 25 years so why would you not expect this to apply to turbochargers??
I can just see it now...
Mrs Rainbird - "Mikewoo woo, i want the 48 inch LCD with HD, dolby surround sound and built in sky plus hard drive"
Mike - " Sorry honey, you just cany beat a cathode ray tube and that crisp mono sound"
There have been huge advances in most technologies over the past 25 years so why would you not expect this to apply to turbochargers??
I can just see it now...
Mrs Rainbird - "Mikewoo woo, i want the 48 inch LCD with HD, dolby surround sound and built in sky plus hard drive"
Mike - " Sorry honey, you just cany beat a cathode ray tube and that crisp mono sound"
09-09-2008, 03:02 PM
#102
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09-09-2008, 03:07 PM
#104
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09-09-2008, 03:07 PM
#105
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Why bother modding it in the first place if you are only interested in the magic 500? (as per title of this thread!) As i said earlier ITS ALL DOWN TO HOW YOU WANT YOUR ENGINE TO PERFORM.
09-09-2008, 03:08 PM
#106
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09-09-2008, 03:13 PM
#110
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You can get a t34 to work like a t4 does, and vice versa depending on the above
09-09-2008, 03:17 PM
#111
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09-09-2008, 03:19 PM
#112
Er, regarding the shaft - why don't you look at the photos I posted up on the previous page, instead of jumping to random (incorrect) conclusions .
If you think the T4 has badly designed / inefficient wheels etc, perhaps you should compare compressor maps. From what I have seen, the T4 is still the Daddy....
The ONLY improvement with the GT30 (0.63 a/r) compared to the T4 is in boost-threshold, but at the expense of top end flow (500bhp @ 32psi is it's limit) AND strength. The only way the boost threshold is improved, is due to the lighter weight of the GT turbo's shaft (for a better reciprocating mass), but this makes it inherently weaker than the T4 item. If this is so important to you, and you want to pay for all the associated paraphanalia that goes with an externally gated turbo, then that is entirely your perogative.
However, I researched the differences, and for a 500bhp track car, I stuck with the shonky T4. It's up to you to chose what you want, but don't think that just because something is newer, it is better.
I'm sure Tony would back me up on this, if he wasn't still sulking at me.
A standard T4 may be limited to 520 bhp @ 32psi, but the one I pictured previously (with the mods to the exhaust housing) has produced 500bhp AT THE WHEELS (see Euan's graph).
.If you think the T4 has badly designed / inefficient wheels etc, perhaps you should compare compressor maps. From what I have seen, the T4 is still the Daddy....
The ONLY improvement with the GT30 (0.63 a/r) compared to the T4 is in boost-threshold, but at the expense of top end flow (500bhp @ 32psi is it's limit) AND strength. The only way the boost threshold is improved, is due to the lighter weight of the GT turbo's shaft (for a better reciprocating mass), but this makes it inherently weaker than the T4 item. If this is so important to you, and you want to pay for all the associated paraphanalia that goes with an externally gated turbo, then that is entirely your perogative.
However, I researched the differences, and for a 500bhp track car, I stuck with the shonky T4. It's up to you to chose what you want, but don't think that just because something is newer, it is better.
I'm sure Tony would back me up on this, if he wasn't still sulking at me
.A standard T4 may be limited to 520 bhp @ 32psi, but the one I pictured previously (with the mods to the exhaust housing) has produced 500bhp AT THE WHEELS (see Euan's graph).
Last edited by Mike Rainbird; 09-09-2008 at 03:21 PM.
09-09-2008, 03:19 PM
#113
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09-09-2008, 03:25 PM
#114
PassionFord Post Troll
09-09-2008, 03:28 PM
#115
IMHO There is only one reason why you would fit a T4 over a GT series and that's packaging.
Oh and reliability problems ?? What problems I used a GT series and battered it on the Gumball, Lee did the same any failures?.. Not here!
Last edited by Martin-Hadland; 09-09-2008 at 03:37 PM.
09-09-2008, 03:29 PM
#116
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ok ignore the modded T4 for a minute (and mike, just for the modded bit mike!), basically we all know a T4 will work for 500 and so will the GT30, so at the end of the day it comes down to whoever and however the person chooses to build the engine and how well it is speced and put together. old technology or new they both work for the the big 500 choosing either way they will have a quck car if done right!
choosing either way they will have a quck car if done right!
09-09-2008, 03:30 PM
#117
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Er, regarding the shaft - why don't you look at the photos I posted up on the previous page, instead of jumping to random (incorrect) conclusions .
If you think the T4 has badly designed / inefficient wheels etc, perhaps you should compare compressor maps. From what I have seen, the T4 is still the Daddy....
The ONLY improvement with the GT30 (0.63 a/r) compared to the T4 is in boost-threshold, but at the expense of top end flow (500bhp @ 32psi is it's limit) AND strength. The only way the boost threshold is improved, is due to the lighter weight of the GT turbo's shaft (for a better reciprocating mass), but this makes it inherently weaker than the T4 item. If this is so important to you, and you want to pay for all the associated paraphanalia that goes with an externally gated turbo, then that is entirely your perogative.
However, I researched the differences, and for a 500bhp track car, I stuck with the shonky T4. It's up to you to chose what you want, but don't think that just because something is newer, it is better.
I'm sure Tony would back me up on this, if he wasn't still sulking at me.
A standard T4 may be limited to 520 bhp @ 32psi, but the one I pictured previously (with the mods to the exhaust housing) has produced 500bhp AT THE WHEELS (see Euan's graph).
.If you think the T4 has badly designed / inefficient wheels etc, perhaps you should compare compressor maps. From what I have seen, the T4 is still the Daddy....
The ONLY improvement with the GT30 (0.63 a/r) compared to the T4 is in boost-threshold, but at the expense of top end flow (500bhp @ 32psi is it's limit) AND strength. The only way the boost threshold is improved, is due to the lighter weight of the GT turbo's shaft (for a better reciprocating mass), but this makes it inherently weaker than the T4 item. If this is so important to you, and you want to pay for all the associated paraphanalia that goes with an externally gated turbo, then that is entirely your perogative.
However, I researched the differences, and for a 500bhp track car, I stuck with the shonky T4. It's up to you to chose what you want, but don't think that just because something is newer, it is better.
I'm sure Tony would back me up on this, if he wasn't still sulking at me
.A standard T4 may be limited to 520 bhp @ 32psi, but the one I pictured previously (with the mods to the exhaust housing) has produced 500bhp AT THE WHEELS (see Euan's graph).
A gt-30 can also come with internal wg btw, even in trim 82 and that will make the t4 look bad in my appinion.
09-09-2008, 03:30 PM
#118
Too many posts.. I need a life!!
ok ignore the modded T4 for a minute (and mike, just for the modded bit mike!), basically we all know a T4 will work for 500 and so will the GT30, so at the end of the day it comes down to whoever and however the person chooses to build the engine and how well it is speced and put together. old technology or new they both work for the the big 500 choosing either way they will have a quck car if done right!
choosing either way they will have a quck car if done right!
09-09-2008, 03:39 PM
#120
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ok ignore the modded T4 for a minute (and mike, just for the modded bit mike!), basically we all know a T4 will work for 500 and so will the GT30, so at the end of the day it comes down to whoever and however the person chooses to build the engine and how well it is speced and put together. old technology or new they both work for the the big 500 choosing either way they will have a quck car if done right!
choosing either way they will have a quck car if done right!