Hyundai Genesis Forum

Hyundai Genesis Forum (https://www.gencoupe.com/forumindex.php)
-   2.0T Discussion 2013 and up (https://www.gencoupe.com/2-0t-discussion-2013-up/)
-   -   Tuned 2.0 vs. 3.8 (https://www.gencoupe.com/2-0t-discussion-2013-up/520562-tuned-2-0-vs-3-8-a.html)

Gencpe 03-31-2016 08:41 AM

Tuned 2.0 vs. 3.8
 
Has anyone raced both tuned 2.0 vs. 3.8?

For ex...

2013 2.0T A/T 8-Speed, mods SFR Tuned ECU stage 1.5, Bolt ons: Down pipe with secondary cat removed and tsudo exhaust, Injen Intake, RFL BOV, OCC.

vs.

2013 3.8 Manual 6-speed or A/T with SFR canned tune, Injen intake and CBE.

Tried to search this with no clear answer and no youtube runs to see real world examples...

On paper who should win? Not interested in dig just roll and what speed/gear does the 2.0 need to be in for best advantage. How close will this race be IRL?

J Long 03-31-2016 08:47 AM

I hope this is a joke......

guybo 03-31-2016 09:00 AM

Tuned 2.0 vs stock 3.8 I think would be a fair fight, but tuned vs tuned? The 3.8 wins.

AKGC 03-31-2016 09:24 AM

oddly enough, from comparing the stage 1 dyno charts for both, the 2.0t makes more torque, but about the same HP....

there's only so much you can do with a tune with naturally aspirated


I say is comes down to gearing.

Gencpe 03-31-2016 09:30 AM

Quote:

Originally Posted by AKGC (Post 4137362)
oddly enough, from comparing the stage 1 dyno charts for both, the 2.0t makes more torque, but about the same HP....

there's only so much you can do with a tune with naturally aspirated


I say is comes down to gearing.

this is why I ask....also we're talking about from a roll...how close

AKGC 03-31-2016 09:31 AM

Quote:

Originally Posted by Gencpe (Post 4137418)
this is why I ask....also we're talking about from a roll...how close

just run them. bench racing is for losers

Gencpe 03-31-2016 09:32 AM

Quote:

Originally Posted by J Long (Post 4137282)
I hope this is a joke......

my next question is what is needed to beat a custom tuned 3.8 with those same mods on the 3.8.

what does the 2.0 need for the bare minimum.

Gencpe 03-31-2016 09:33 AM

Quote:

Originally Posted by AKGC (Post 4137426)
just run them. bench racing is for losers

I agree I hate bench racing but to get somewhat of an idea and not go in thinking crazy that one will beat the other vise versa

Gencpe 03-31-2016 09:36 AM

the next reason I ask is because I've seen some low dyno numbers after a tune for n/a 3.8 not much gain compared to 2.0T

guybo 03-31-2016 10:04 AM

Quote:

Originally Posted by AKGC (Post 4137362)
oddly enough, from comparing the stage 1 dyno charts for both, the 2.0t makes more torque, but about the same HP....

there's only so much you can do with a tune with naturally aspirated


I say is comes down to gearing.

Bk2 A/T for 3.8 and 2.0 have the same final gear ratio, so gearing is not part of the equation. Though tire size could in theory https://www.gencoupe.com/drivetrain/1...nloadable.html

If this is so then it's a lot more interesting. The 2.0 builds torque sooner and carries a flatter torque curve plus it's lighter. But all the dyno charts I see show the 3.8 with a lot more HP, the 2.0 with more torque. Then there's turbo lag. I think in a shorter race the tuned 2.0 would win but once the cars stretch thier legs the 3.8 would win.

Yeah we need a throw down! We need a 3.8 vs tuned 2.0 drag race at a track. Anyone with a 3.8 live close to Bradenton? They have some Sunday Fundays where we could do this.

AKGC 03-31-2016 10:17 AM

Quote:

Originally Posted by guybo (Post 4137546)
Bk2 A/T for 3.8 and 2.0 have the same final gear ratio, so gearing is not part of the equation. Though tire size could in theory https://www.gencoupe.com/drivetrain/1...nloadable.html

If this is so then it's a lot more interesting. The 2.0 builds torque sooner and carries a flatter torque curve plus it's lighter. But all the dyno charts I see show the 3.8 with a lot more HP, the 2.0 with more torque. Then there's turbo lag. I think in a shorter race the tuned 2.0 would win but once the cars stretch thier legs the 3.8 would win.

Yeah we need a throw down! We need a 3.8 vs tuned 2.0 drag race at a track. Anyone with a 3.8 live close to Bradenton? They have some Sunday Fundays where we could do this.

I assumed that the transmissions had different ratios. Apparently they have the exact same transmissions, or the ratios are so close that it doesn't really matter.

if they both have stock tire sizes, then they both have the same the same tread diameter.

turbo lag? they're both automatics.

DubbuD 03-31-2016 11:02 AM

That's because the 2.0 has a turbo. You can pump up the pressure on the turbo and get big boosts to power and torque.

DubbuD 03-31-2016 11:06 AM

and yes, turbo lag is contributing to the loss of time on a drag run. from a roll in high RPM its probably really similar.

J Long 03-31-2016 11:07 AM

He's actually serious......

From a roll:
Stock 2.0 vs Stock 3.8 = 3.8 win
Tuned 2.0 vs Stock 3.8 = 2.0 win
Tuned 2.0 vs Tuned 3.8 = 2.0 win and it wont be close
Tuned 2.0 vs Tunedish 370Z = 2.0 win by a good bit too (which I have seen)

A turbo vs any n/a is not a fair fight

Gencpe 03-31-2016 11:22 AM

see that's what I thought too...

but somehow this guy thinks i'll barely hang with him...

I'm the 2.0 with the mods above A/T 8-Speed and he's the 3.8 with mods above 6-speed manual.

Gencpe 03-31-2016 11:26 AM

Although i'm a premium i'm probably the heaviest 2.0T with sunroof, navi but 18" wheels...he's the heaviest 3.8 manual in track form with all the bells and whistles navi, sunroof, etc....he's got aftermarket wheels (extremely heavy) but says they're close to the r-spec 19" wheels in overall diameter.

Still I should be about 200+lbs difference (lighter) between him I could imagine atleast.

Gencpe 03-31-2016 11:30 AM

Quote:

Originally Posted by guybo (Post 4137546)
Bk2 A/T for 3.8 and 2.0 have the same final gear ratio, so gearing is not part of the equation. Though tire size could in theory https://www.gencoupe.com/drivetrain/1...nloadable.html

If this is so then it's a lot more interesting. The 2.0 builds torque sooner and carries a flatter torque curve plus it's lighter. But all the dyno charts I see show the 3.8 with a lot more HP, the 2.0 with more torque. Then there's turbo lag. I think in a shorter race the tuned 2.0 would win but once the cars stretch thier legs the 3.8 would win.

Yeah we need a throw down! We need a 3.8 vs tuned 2.0 drag race at a track. Anyone with a 3.8 live close to Bradenton? They have some Sunday Fundays where we could do this.

I always thought 3.8 had more torque and the manual version of the 2.0 had good torque but i'm an A/T 8-speed. so yeah....

it's a hit or miss I've seen similar dyno number for both the 2.0 and 3.8 for canned tune + mods for both vehicles. This is why I ask.

And I thought because the 2.0T with A/T has two more extra gears vs. the 3.8 6-speed manual that it would make a difference on a roll run lets say at highway/freeway speeds on the Mexican highway.

Gencpe 03-31-2016 11:32 AM

Quote:

Originally Posted by AKGC (Post 4137586)
I assumed that the transmissions had different ratios. Apparently they have the exact same transmissions, or the ratios are so close that it doesn't really matter.

if they both have stock tire sizes, then they both have the same the same tread diameter.

turbo lag? they're both automatics.


2.0T being automatic and 3.8 being Manual,

but I wanted to get input on both regardless of trans.

AKGC 03-31-2016 11:46 AM

Quote:

Originally Posted by Gencpe (Post 4137714)
2.0T being automatic and 3.8 being Manual,

but I wanted to get input on both regardless of trans.

Sorry, saw A/T on the first post and assumed.

So, yes gearing will be a factor, also shifting.
The automatic will have a bit more loss in power going through the transmission, than a manual.

guybo 03-31-2016 12:04 PM

The torque converter eats power, M/T has an advantage. Look at the dyno threads for the differences in HP and torque.

Weight makes a huge difference too. With my 100+ lbs of work tools in the back I feel a big difference in my car. It affects my 80-100 time too.

It doesn't take a whole lot of tuning of the 2.0 to get big torque numbers over the stock 3.8 this is an interesting question. I'd love to drag race a 3.8 on track and see. Plus with a tune, there's launch control to think of.


All times are GMT -8. The time now is 06:16 PM.

Powered by vBulletin® Copyright ©2000 - 2019, vBulletin Solutions, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

 
For the best viewing experience please update your browser to Google Chrome