GT3071??
#1
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GT3071??
Does/is anyone off here running one on there cossie?? always seems to be the 3076, was just wondering what kind of power these make and how responsive etc, i guess they make around 470-480 ish but with less lag than the 3076??
Any advice welcome.........
Any advice welcome.........
#2
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Purely looking at the compressor maps, the 71 seems much more likely to suffer surge problems than the 76, which is probably why the latter is chosen.
#6
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Wil, internal, or external fella, just gauging info in them tbh mate, sounds good posotive boost @ 3k though..that's what i'm after tbh, not fussed about numbers just a responsive nice turbo..
#7
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All the Gtir boys seem to favour the 3071. (3076 will make more power but boosts at a slightly higher rpm) I'd have thought it'd work as well on a cossie as we're both 2L 16V. 400bhp+ is very easy on these turbos at a little over 1bar. They'll run about 450bhp quite happily.
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#8
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pete
if your after a gt30 that makes positive boost before 3k then the one i have on mine is great
it's hard to explain but if in 1st gear and moving of it will make some kind of positive boost as little as 2k and in every gear after than then the boost is nearly striaght away
it comes in hard @ roughtly 3k then pins you to the seat ..lol..
i dont know what mine is but it's a gt30 with internal waste gate
my engine is also low comp but this turbo make the engine feel high comp
it's hard to explain really you need to be in it to see for yourself
i also have bd15 inlet cam aswell
ill try and sum it up in one go if i can
1 , normal driving it pulls like a t3.48 would do
2, about 3k it then pulls like a t4 would do
this turbo is one of the best turbos i have ever driven , it is defo the most modern turbo that really suits my normal driving around town
and when you want to to be quick the turbo is nearly on song
marco
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Marco's description is spot on, pulls really well everywhere, as he says it is hard to put into words The car just felt "easy to drive" round town, then goes like a train ...
#10
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Staffi - i know you had en evo with an fpgreen, in the evo world the 3071 is less favourable than the fpgreen, they both make similar power figures but the green tends to be more responsive and make more torque.
and the externally gated 3076 will do up to 550bhp but not be quite as responsive as you've already said.
and the externally gated 3076 will do up to 550bhp but not be quite as responsive as you've already said.
#11
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Staffi - i know you had en evo with an fpgreen, in the evo world the 3071 is less favourable than the fpgreen, they both make similar power figures but the green tends to be more responsive and make more torque.
and the externally gated 3076 will do up to 550bhp but not be quite as responsive as you've already said.
and the externally gated 3076 will do up to 550bhp but not be quite as responsive as you've already said.
dont think the 76 will make as much as 550.
#14
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Thanks for all your replies folks, really appreciated..
Marco,
That sounds just about perfect mate, the 38 pulls well but it'sjust not a nice turbo imo, i know some will disagree with my view, but it's fooking hard work...
I was spoilt when Karl mapped my 3dr on the T34.48, that was just a hoot to drive and i do miss the response that setup gave, so i may give the 3071 a shot i think..
Marco,
That sounds just about perfect mate, the 38 pulls well but it'sjust not a nice turbo imo, i know some will disagree with my view, but it's fooking hard work...
I was spoilt when Karl mapped my 3dr on the T34.48, that was just a hoot to drive and i do miss the response that setup gave, so i may give the 3071 a shot i think..
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Thanks for all your replies folks, really appreciated..
Marco,
That sounds just about perfect mate, the 38 pulls well but it'sjust not a nice turbo imo, i know some will disagree with my view, but it's fooking hard work...
I was spoilt when Karl mapped my 3dr on the T34.48, that was just a hoot to drive and i do miss the response that setup gave, so i may give the 3071 a shot i think..
Marco,
That sounds just about perfect mate, the 38 pulls well but it'sjust not a nice turbo imo, i know some will disagree with my view, but it's fooking hard work...
I was spoilt when Karl mapped my 3dr on the T34.48, that was just a hoot to drive and i do miss the response that setup gave, so i may give the 3071 a shot i think..
Hi pete
you are like me , no offence i dont give a fiddlers fook about what bhp turbo makes (to an extent) ,
my 3dr is my everyday road car so this turbo is good for i want ,
yes it defo drives like a t3.48 normal driving pulls exactly like that
untill you give it more stick then it kick in properly like a mule
i persoanlly i dont care what power this turbo makes i really dont ,
im over the moon and im glad
it's going to karls shortly for remapping on the 5bar /1000cc/ ect
see what it's like then
trust me pete this is the turbo you will love, it kicks harder than a t38 once it's on full boost
it is most defo the best of both worlds
thats my honest opinion
marco
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#19
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if you take a t34 off a cossie and bolt it onto a skyline engine... its still a 400bhp turbo is it not?
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#23
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yes mate no probs, it's not as if your miles away is it .........lol...see it first hand never mind the waffle mate about how much bhp this and that makes
it has to be live mapped but i can still give it a bit of stick as it's not quite out the fuel/air map
if it's driverbility your after then this is the baby , if your after 520+ then then go external but that will be defo lagger than the internal
all poeple thin is bhp bhp bhp they dont think about how it's going to drive on the road normal driving
people say to me what it's like off boost , i turn around and say "what off boost "it makes boost nearly striaght away
i have nothing to lie about it ,if it was shite i would tell you to stay away
marco
#24
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No.. its about airflow, not displacement.. all a larger engine means is at a given manifold pressure, it flows as much as the smaller engine at less rpm. The turbo itself is still only capable of flowing a certain amount of air, a larger engine just means you get to that choke point earlier!
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Thanks for all your replies folks, really appreciated..
Marco,
That sounds just about perfect mate, the 38 pulls well but it'sjust not a nice turbo imo, i know some will disagree with my view, but it's fooking hard work...
I was spoilt when Karl mapped my 3dr on the T34.48, that was just a hoot to drive and i do miss the response that setup gave, so i may give the 3071 a shot i think..
Marco,
That sounds just about perfect mate, the 38 pulls well but it'sjust not a nice turbo imo, i know some will disagree with my view, but it's fooking hard work...
I was spoilt when Karl mapped my 3dr on the T34.48, that was just a hoot to drive and i do miss the response that setup gave, so i may give the 3071 a shot i think..
Last edited by Jay,; 25-07-2008 at 09:48 PM.
#27
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Plenty of comparisons of 2lt forged and 2.3 ltr forged engines running the same turbo on the MLR, they tend to make the same bhp but at different rev's, the big difference is the torque figure... the 2.3 makes more than the 2.0 and makes it at lower rpm.
i understand this is the case in n/a tuning but i always believed the same as pa_sjo
agree'd
i understand this is the case in n/a tuning but i always believed the same as pa_sjo
agree'd
#29
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So bottom line is, the 3071 spools up like a T34 and makes holds the power better and makes a nice drivable road/track setup yes??
Quite suprised more people don't go down this route then tbh, unless i'm missing somethong, or it's just BHP numbers alot of folks are after.
I've been in an Evo with a 3076.82 on and must admit that it felt superb though tbh, again different setup etc but felt very strong and didn't notice alot of lag to be fair..unless that's cus i was shitting myself..
Any tuners have any views on the turbos mentioned??
Quite suprised more people don't go down this route then tbh, unless i'm missing somethong, or it's just BHP numbers alot of folks are after.
I've been in an Evo with a 3076.82 on and must admit that it felt superb though tbh, again different setup etc but felt very strong and didn't notice alot of lag to be fair..unless that's cus i was shitting myself..
Any tuners have any views on the turbos mentioned??
#35
i agree i haqve near on the same engine build as all the vauxhall boys going for over 500 at the moment, but ive gone for a smaller turbo so it is more drivable
Last edited by sbd16v; 26-07-2008 at 09:46 AM.
#36
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not used one but thats deffo my next step..............I agree about the T38 as well.
Set of blacks, a GT30 and its off to Stus
my only hold up is not having ALS for the maccy D's carpark
edited to add i will probably go for the smaller version as well. I LOVED my .48 stage 3 conversion for general hoon-ability
and miss that ALOT now i have to absolutely positively be gunning the T38 go get my grin factor back...........dont get me wrong once on boost it IS great but there is just something I cant explain for the rest of the powerband and its not that its slow as looking at the speedo does remind you you're going some!!
I guess you would only know if you had the T38 lol
Set of blacks, a GT30 and its off to Stus
my only hold up is not having ALS for the maccy D's carpark
edited to add i will probably go for the smaller version as well. I LOVED my .48 stage 3 conversion for general hoon-ability
and miss that ALOT now i have to absolutely positively be gunning the T38 go get my grin factor back...........dont get me wrong once on boost it IS great but there is just something I cant explain for the rest of the powerband and its not that its slow as looking at the speedo does remind you you're going some!!
I guess you would only know if you had the T38 lol
Last edited by rsnissan; 26-07-2008 at 09:53 AM.
#37
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Yeah i guess Euan, as said though for my needs, i'd rather have a nice drivable car tbh and the 38 isn't the best i've had..
I fuly appreciate folks going for bigger turbos if they're tracking/top speed running etc, but mines just a road car tbh and if i could get around 460 odd with nice early boost and good pull i'd be over the moon.. plus being on the 205 block still i might get away with it, kiss of death..
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whats the spec for a cossie...............3071....3071r...3071rs......w hat size comp wheel and housing are the best to go for.......more info thanks....