Stage 2 turbo bette than stage 3?

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NjLowrider

NjLowrider

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Drex81
On a few of my cars I've noticed stage 2 might be better than 3! Just odd numbers!
03 xanavi nismo gt-r
Stage 3, 607hp 643 ft. Lbs.
Stage 2, 597hp 718 ft. Lbs.
Big torque gain and little hp loss.

Anyone ever make lap comparisons?
 
cb1021
A stage 3 turbo is also heavier right???
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Turbos don't weigh anything in GT Country.

And, yes, in some cases it makes more sense to fit the stage 2 turbo. Depends on the car, the transmission and the track, though. The biggest difference is usually the way the power and torgue are delivered over the powerband. The stage 2 provides a more balanced development throughout the whole RPM range than the stage 3.
 
I'd like to see a lap time comparison, it's pretty much the only way to tell what's better. I'll try it out for myself when I can, though.

Edit: Always thought it was odd they didn't show you torque gains, only horsepower... There's a well-known Carroll Shelby quote about that!
 
This depends massively on the car and driver.

First - BHP sells cars, torque wins races.

On the road, a nice wide spread of torque is desirable. On the race track where the car should be in it's power band all the time, low down torque is not necessarily needed.
 
I drive with manual trans and leave it in a higher gear out of turns. Would be nice to have a bit more torque!!
 
A car with a weak rev range in the mid section of the rev scale will be more responsive to a mid range RPM turbo. That is why the turbos are staged in RPM bands, because engines respond differently, an engine with a high power band (in high rev band) may suffer at low revs therefore needing a turbo which operates at low revs for a boost in that band.
(Hope this makes sense, 5 beers down right now.)
 
Great thread, never even thought about it tbh, will now though!


👍
 
Thats because they're not stages. They're based on the RPM ranges which is different for every car because of their powerband.

If you have a car with peak horsepower at mid range, but falls down at high RPM's, then you should get a mid range turbo. You also wouldnt really want to put a high RPM turbo on a VW bus that has a tiny engine that hardly revs.
 
shem
A car with a weak rev range in the mid section of the rev scale will be more responsive to a mid range RPM turbo. That is why the turbos are staged in RPM bands, because engines respond differently, an engine with a high power band (in high rev band) may suffer at low revs therefore needing a turbo which operates at low revs for a boost in that band.
(Hope this makes sense, 5 beers down right now.)
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Good theory - on a road car, i'd back you 100%

but... We are on circuits, the cars at high rpm all the time. You don't need low down torque if the car is sat in the final 2,000 revs all the time.

What people forget is that torque is a figure of power, BHP is a measure of 'work done'. Lots of torque makes life easier for those ponies :)
 
the stage three turbo is better for drifting with the sambabus ie easy to drop down a gear throw it in and plant it.....and now youre sideways.... On topic for wide open tracks (hsr) a high rpm turbo would be better, but for tight tracks where hp isnt an issue (tsukuba) the stage two would give you the punch out of the tight corners, rather than waiting to come on power and spinning the tyres when you do
 
I will definitely give stage 2 a shot now. Just look at the original posts comparison numbers! I bet for certain cars/tracks its a win win!
 
I don't think torque means anything in GT5, in real life its everything but I really see no evidence that it has any effect in GT5
 
I just ran 5 laps of each with 2 and 3. Grand valley east.
Half a second slower with stage 2!
I had ghost on and straightaway speed was much slower. Also the torque coming out of a turn was a bit too much with stage 2. I like the lag better!
57.459 with stage 3
57.980 with stage 2

Turns out when your racin, you want high rev's!
 
The turbo's aren't listed as stage 1,2 and 3 they are low medium, and high rev range ;)

So you need to know the car's characteristics before assuming the most expensive gives the most most power .

Mid range rpm gives the best results( and highest bhp) on the RM EVO and STi
 
I think mid rpm boost vs high rpm boost varies on the track. Tracks with long straights and wide turns would be better for high rpm, mid would be better for tight corners and small straights, mazda laguna seca would be great for mid rpm I think. Where as nurburgring would be great for high rpm, imo.
 
I'd say mid range torque is probably more usable in a race. but that said i guess it largly depends on the track.

highspeed ring for example, sees alot of high speed corners and high rpm, no doubt that the stage 3 would be the better choice.

London however, a number of stop and go corners so id probably go for the stage 1
 
liamvr6
Good theory - on a road car, i'd back you 100%

but... We are on circuits, the cars at high rpm all the time. You don't need low down torque if the car is sat in the final 2,000 revs all the time.
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Fuel economy, also, you can't garuntee that you'll always be 2000 RPM from the redline. You may not even want to set up your transimission like that depending on how long it takes you to shift.

What people forget is that torque is a figure of power, BHP is a measure of 'work done'. Lots of torque makes life easier for those ponies :)
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[/quote]
Torque is work when applied over a certain revolution. HP is work rate, or power. What matters in the end is the force pushing the car forward. That is HP/velocity. Torque comes in when you can't be at the redline making max power, though it's less of an issue with super fast transmissions that we see today.
 
Exorcet
Fuel economy, also, you can't garuntee that you'll always be 2000 RPM from the redline. You may not even want to set up your transimission like that depending on how long it takes you to shift.
Click to expand...
Torque is work when applied over a certain revolution. HP is work rate, or power. What matters in the end is the force pushing the car forward. That is HP/velocity. Torque comes in when you can't be at the redline making max power, though it's less of an issue with super fast transmissions that we see today.
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torque is all that matters and rpms. torque * rpm /5250 = HP
 
Damn, I thought most expensive upgrade meant best performance, usually we get what we pay for.

Question, does anyone ever get the $100 cheaper sport Air filter, vs the more expensive Racing filter? Why offer both "in this game"?
 
I get every upgrade for every car. I don't necessarily want maximum horsepower. I also focus on online, so being able to change hp lets me enter a lot of rooms.

Has anyone as of yet mentioned the RPM along with power? People seem to be ignoring it. To make a good comparison, you need the powerbands, but I don't expect anyone to go through the hassle of taking a photo. Just putting up hp numbers doesn't get us anywhere though.
 
^ reliability...

For the last few days I have been driving a 3000 GT VR4 98 with a high rpm turbo installed. I hotlapped trial mountain for about 5-10 laps working on tuning out the awful understeer of the heavy AWD car and I ended up running mid 1:27's over and over.

So I just read this thread and immideatley I thought of the Mitsubishi 3000 GT LM from GT2 or 4. forget which..the silver one. I remember you had to shift early and at different RPM's depending on your gears as that car was all midrange tourque. I remember once I figured that out it was much more fun and engaging setting your individual gears for that than to drive a car that is simply redline redline redline.

So I just finished 2 sloppy laps without being warmed up of trial mountain with a midrange turbo installed and I was over a second faster.

For referance the power difference is...

Highrange turbo installed:

HP: 690 @6900
T: 581@5400

Midrange turbo installed:

HP: 660@5400
T: 688@4900

Off hand I would say if your car has all of its power mid range buy a mid range turbo, if it's all high range buy a high range.

I would love to hear if somone posts a faster lap with a low range verses a mid range though me thinks that low range is just there to save money.

Proven that sometimes mid range is better than high range.
 
NjLowrider
On a few of my cars I've noticed stage 2 might be better than 3! Just odd numbers!
03 xanavi nismo gt-r
Stage 3, 607hp 643 ft. Lbs.
Stage 2, 597hp 718 ft. Lbs.
Big torque gain and little hp loss.

Anyone ever make lap comparisons?
Click to expand...

I'd take torque over hp, especially with those figures. 10hp less but an extra 75lbs of torque. The stage 2 turbo will get you to top end much quicker.
 

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