torque turbo?

[normality78]

Guy's,

I've been seeing quite some numbers of dyno graph, i notice some have higher HP thn TQ and some was the other way round. Looking back at mine own graph, my hp figure and tq figure was nearly the same.

thn i was curious (may sound dumb also), is there any tips / tricks on telling at a particular turbo, its more likely will generate more Tq thn hp or the characteristic of this turbo is more on tq?

 

[4G93GTi-R]

hp & tq is up to you setting...normally for more tq use for drag & hp for distance

 

[4G93GTi-R]

hp & tq is up to your engine setting..normally gain more tq it for drag & gain more hp it for distance

 

[jinkl]

raw power of the engine has diffrent variables , CC , Bore , Stroke , this combination makes the characteristics of the engine, this one is indepth studies, which err i also dont fully know

diffrent turbo cant create diffrent torque just like that, u have to understand
the compressor side of the turbo sucks air for ur engine , the turbine side uses exhaust air to spin it.

the bigger ur compressor fin and design efficiency , the more air it will suck , increasing both hp and also torque , a turbine side has a fin and also a housing , turbine size and housing are determined by the application of ur car , drag , drift , daily drive , highway cruiser , there has to be balance between the compressor and the turbine side to avoid surge and chokes.

the best turbo that suits ur car , no one can actually tell it out, unless u state ur application , ur engine and its specs , so a turbo builder can understand and recommend u a suitable turbo, pop ur specs out, there are turbo builders in zth that can help u out.

 

[ihsan000]

agreed......

 

[FatAssRubber]

hi guys,

It is interesting to hear some comments on torque vs hp. Before we can even start to compare which are we looking for, we need to understand the fundamentals of hp and torque.

The definition of torque would be force in lb or newton or kg(which is a derivitive of newton. 1kg=9.8 newton) and multiply that with the distand which create a lever action in in, ft or m,cm. which most time explain a static condition.

hp however, is a dynamic condition. when we want to compete on power of our cars, we send for dynos. have anyone thought how the cowboys compare their horses?? yup, a race, of a known weight over a distant. primitive but accurate.

with both torque and hp is derive from element of force, distance and mass, if is merely a mathematical calculation related. if a dyno is set properly, all hp and torque in lb.ft will intercross at 5252rpm.

That’s the only mathematical way of calculating torque and hp. And computers on dynos use that calculation too. No ifs, no buts about that. The thing is, on any dyno chart, below 5252 rpm the engine's torque number will always be HIGHER than its horsepower number, and above 5252 rpm the engine's torque number will always be LOWER than its hp number. At 5252 rpm the hp and torque numbers will be exactly the same. That’s the holy grail of measuring power since the days of James Watt in the 1700’s.


But the fallacy to me is that horsepower is just an imaginary thing cos, to me, horsepower SELLS the car but torque DRIVES the car. I’d never take anything at face value especially coming from the Japanese car marketers. There are the ones who are confusing the whole issues of hp figures because it has to look good so that the average Joe’s will buy more.

so, answer to your question is questionable and i agree fully with jinkl, what are you looking for. if you want torque according to what we have establish here, probably you want a smaller turbo, fast spooling to give you peak at 3200 to 6000. if hp, then you want a big turbo to start spooling at 4500 and peak at 6000 and hell break loose at 7500. and of course you are to drive your car everyday on the road, you want torque and not hp.

i hope that enlighten some of us here.

do email me if you want to discuss or debate more on this. its my pleasure.

have fun.

 

[normality78]

actually the reason why i asked so is like this. Lets put Evos and Sti as example.

I notice this. the bigger turbo they use, the lower tq output. the lower that im trying to say is it doesnt gain as much as hp. etc, 6xxhp, 4xxnm Tq. Hardly seen those machine which having 6xx hp, have the same 6xxnm Tq output

so i was wondering, is there any turbo which particulary leaning more torque gains instead of hp. It seems to be Mitsu TD series turbo gives better torque then garrett stock series turbo, perhaps even garrett GT series?

 

[jinkl]

hi guys,

It is interesting to hear some comments on torque vs hp. Before we can even start to compare which are we looking for, we need to understand the fundamentals of hp and torque.

The definition of torque would be force in lb or newton or kg(which is a derivitive of newton. 1kg=9.8 newton) and multiply that with the distand which create a lever action in in, ft or m,cm. which most time explain a static condition.

hp however, is a dynamic condition. when we want to compete on power of our cars, we send for dynos. have anyone thought how the cowboys compare their horses?? yup, a race, of a known weight over a distant. primitive but accurate.

with both torque and hp is derive from element of force, distance and mass, if is merely a mathematical calculation related. if a dyno is set properly, all hp and torque in lb.ft will intercross at 5252rpm.

That’s the only mathematical way of calculating torque and hp. And computers on dynos use that calculation too. No ifs, no buts about that. The thing is, on any dyno chart, below 5252 rpm the engine's torque number will always be HIGHER than its horsepower number, and above 5252 rpm the engine's torque number will always be LOWER than its hp number. At 5252 rpm the hp and torque numbers will be exactly the same. That’s the holy grail of measuring power since the days of James Watt in the 1700’s.


But the fallacy to me is that horsepower is just an imaginary thing cos, to me, horsepower SELLS the car but torque DRIVES the car. I’d never take anything at face value especially coming from the Japanese car marketers. There are the ones who are confusing the whole issues of hp figures because it has to look good so that the average Joe’s will buy more.

so, answer to your question is questionable and i agree fully with jinkl, what are you looking for. if you want torque according to what we have establish here, probably you want a smaller turbo, fast spooling to give you peak at 3200 to 6000. if hp, then you want a big turbo to start spooling at 4500 and peak at 6000 and hell break loose at 7500. and of course you are to drive your car everyday on the road, you want torque and not hp.

i hope that enlighten some of us here.

do email me if you want to discuss or debate more on this. its my pleasure.

have fun.

nice one , informative :)

 

[bebolagalas T]

actually the reason why i asked so is like this. Lets put Evos and Sti as example.

I notice this. the bigger turbo they use, the lower tq output. the lower that im trying to say is it doesnt gain as much as hp. etc, 6xxhp, 4xxnm Tq. Hardly seen those machine which having 6xx hp, have the same 6xxnm Tq output

so i was wondering, is there any turbo which particulary leaning more torque gains instead of hp. It seems to be Mitsu TD series turbo gives better torque then garrett stock series turbo, perhaps even garrett GT series?

bro every turbo makes torque..
for me..the issue here is not turbo manufacture e.g HOLSET, GARRETT,BORG WARNER AIR WERK TURBONETIC MHI IHI OR ETC..the problem is choosing the rite turbo (best spec) for the engine n have the best setup (tuning)..

 

[jinkl]

actually the reason why i asked so is like this. Lets put Evos and Sti as example.

I notice this. the bigger turbo they use, the lower tq output. the lower that im trying to say is it doesnt gain as much as hp. etc, 6xxhp, 4xxnm Tq. Hardly seen those machine which having 6xx hp, have the same 6xxnm Tq output

so i was wondering, is there any turbo which particulary leaning more torque gains instead of hp. It seems to be Mitsu TD series turbo gives better torque then garrett stock series turbo, perhaps even garrett GT series?

these are great links for u to read to understand more
http://www.carcraft.com/techarticles/horsepower_vs_torque/index.html
http://auto.howstuffworks.com/horsepower1.htm

there are several ways to achieve higher torque, the easiest way it to increase its capacity , higher cc will have higher torque , look at big v8's , see their capacity vs hp and torque, the torque figures are crazy
u can see a 4g63 getting 600hp but their torque figures do not reach them , while u see the LS1 V8 engine , 500hp , torque 500 too ..
maybe u read the article above can unstd more , too many things plays a role in torque.

so in other words, the turbo yes it increases ur hp and also torque , bt diffrent turbo will not make u get diffrent torque values... for example

lets say , a td06 and a garrett t04e both flowing the same amount of air (CFM) , both producing equaivalent HP , u cant say the TD06 produced more torque, they would be the same , just that the turbine wheel , housing and design will play a role in ur spooling , RPM that u achieve ur desired boost levels and such.

i would , garrett has a HUGE variant of turbo's compared to MHI , too many configurations , and u should know , even the GT turbos or old T garretts come with a choice for turbine sizing and such to suite the application of ur car. I guess , mitsu's are more limited in choice for what i see, maybe bebolas can tell us more about MHI turbo's.

 

[normality78]

lets say , a td06 and a garrett t04e both flowing the same amount of air (CFM) , both producing equaivalent HP , u cant say the TD06 produced more torque, they would be the same , just that the turbine wheel , housing and design will play a role in ur spooling , RPM that u achieve ur desired boost levels and such.

.

actually this is what i wana know. Im sucks in asking question

 

[bebolagalas T]

these are great links for u to read to understand more
http://www.carcraft.com/techarticles/horsepower_vs_torque/index.html
http://auto.howstuffworks.com/horsepower1.htm

there are several ways to achieve higher torque, the easiest way it to increase its capacity , higher cc will have higher torque , look at big v8's , see their capacity vs hp and torque, the torque figures are crazy
u can see a 4g63 getting 600hp but their torque figures do not reach them , while u see the LS1 V8 engine , 500hp , torque 500 too ..
maybe u read the article above can unstd more , too many things plays a role in torque.

so in other words, the turbo yes it increases ur hp and also torque , bt diffrent turbo will not make u get diffrent torque values... for example

lets say , a td06 and a garrett t04e both flowing the same amount of air (CFM) , both producing equaivalent HP , u cant say the TD06 produced more torque, they would be the same , just that the turbine wheel , housing and design will play a role in ur spooling , RPM that u achieve ur desired boost levels and such.

i would , garrett has a HUGE variant of turbo's compared to MHI , too many configurations , and u should know , even the GT turbos or old T garretts come with a choice for turbine sizing and such to suite the application of ur car. I guess , mitsu's are more limited in choice for what i see, maybe bebolas can tell us more about MHI turbo's.

I guess , mitsu's are more limited in choice for what i see, maybe bebolas can tell us more about MHI turbo's.[/QUOTE]

hoho...for me..all turbo manufacture have they own 'secret recipe'..they own principle...they own concept when building their product....

MHI dont focusing on performance turbo..MHI BUILT turbo for GREEDY...yup dont hv many choices..AND ALSO
MHI TURBO R XPENSIVE...THE PART ALSO HARD TO GET----NEED RM,

reason y garrett r more popular among us..garrett r easy to get also at reasonable price..:hmmmm:
wat hapen to other turbo by turbonetic, billett, pwr,xs,ihi,airwerk n etc?---they build very good product but again RM is a problem..:)

how about china turbo??..popular rite ----easy to get; lot of choice n cheap..

p/s: i dont know wat i want to say actually :) sory:slug:

 

[jinkl]

I guess , mitsu's are more limited in choice for what i see, maybe bebolas can tell us more about MHI turbo's.

hoho...for me..all turbo manufacture have they own 'secret recipe'..they own principle...they own concept when building their product....

MHI dont focusing on performance turbo..MHI BUILT turbo for GREEDY...yup dont hv many choices..AND ALSO
MHI TURBO R XPENSIVE...THE PART ALSO HARD TO GET----NEED RM,

reason y garrett r more popular among us..garrett r easy to get also at reasonable price..:hmmmm:
wat hapen to other turbo by turbonetic, billett, pwr,xs,ihi,airwerk n etc?---they build very good product but again RM is a problem..:)

how about china turbo??..popular rite ----easy to get; lot of choice n cheap..

p/s: i dont know wat i want to say actually :) sory:slug:[/quote]

hehehe, turbonetic etc , pokai la :P
bro, r u n nick speedspinturbo in terato the same person , might as well pm u here