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Turboing the GK 2.0l Tib. IS IT WORTH IT??

1.8K views 16 replies 13 participants last post by  JAWS 021  
#1 ·
Hey all,

I know the topic is a stupid one, but I figured it would grab peoples attention. I'm interested in buying the new GK 4cyl. Tib and had some questions for those that really know your stuff. Any accurate Information would be greatly appreciated. Thanks in advance!


I'll go ahead and just list the questions I have:

------------------------------GK 4cyl. 2.0l TIB--------------------------------

1.) How much psi can the stock motor handle?

2.) Any dyno charts I can see from a stock turbo Tib? (Not from modified engines, I'm interested in seeing what the stock motor can do.)

3.) How strong are the internals? Does it need to be changed out when turboed?

4.) Any 1/4 mile times from Turbo Tibs?

5.) Can the tranny handle the boost?

--------------------------------Misc--------------------------------------------

1.) Why in the ##@ did they put the Santa Fe V6 beta in the Tib? A friend of mine is a mechanic at the Hyundai dealership and said that the motor is about equivalent as a 10 year old Honda motor. (This guy knows his stuff: 17 yrs in Korea and 6 years in the state working for Hyundai. Old dude, cool guy.) Under powered? Weak internals.

2.) How strong is the V6....really....handle boost?

3.) What are the new changes for the future Tibs?

-----------------------------------------------------------------------------------

Thanks to all and have a nice day!


Jstyle Motorsports,
Jason

92 Civic HB: b18c5 13.2 all motor
97 Integ LS: 75 shot
 
#2 ·
Originally posted by jstyle
[body]
A friend of mine is a mechanic at the Hyundai dealership and said that the motor is about equivalent as a 10 year old Honda motor.
[/body]
:ermm: That makes no sense at all.
 
#4 ·
In short, here's a few answers for you:

------------------------------GK 4cyl. 2.0l TIB--------------------------------

1.) The stock rods are good for about 300hp, the stock pistons will let go at around 230hp though (if that).

2.) The closest "stock" turbo Tib right now is Random's which has a head spacer on it to lower the compression. His dyno wouldn't be of much value though as he is still having severe tuning issues.

3.) The rods and pistons are answered in #1. The crank should be good to at least 600hp. The block is iron and I've yet to hear of anybody having problems with it under boost.

4.) Not sure off hand.

5.) As far as the gears go, they're fine, but the tranny has a weak stock differential in it. From what we've seen it goes out around 230whp.

--------------------------------Misc--------------------------------------------

1.) I'm guessing they used the Santa Fe engine because they just wanted to get the car to market quickly without having to develop any more engines for use.

2.) I've heard too many different stories to make a judgement on this. Tuners here and in Korea say it's weak but at SEMA the various shops were praising the engine.

3.) Convertible, VVT 4-cyl engine (not much gain), possibly a replacement V6 or turbo 4 for the 2.7L V6 it uses now.
 
#5 ·
I'll keep this short. The 4 is better for turbo than the 6 due to the 4 having an iron block. With just pistons (8.5:1 cast) Yuri is making over 250 Whp, and his is only a 1.8L, not a 2.0L (the engines are identical except for the rods and pistons). The Beta2 in the GK does have some minor external changes, such as a MAP sensor instead of a MAF sensor, and different cams, but otherwise they're the same. With just a piston swap, the 4 in the GK should be able to make 250Whp at about 10 psi, no problem.

EDIT: Here's a post about Yuri's car:
http://www.hyundaiperformance.com/forums/topic.php?t=18733

Ignore all of the talk about MAF sensors, as the new Beta2 uses a MAP sensor instead.
 
#6 ·
Originally posted by i8acobra
[body]
I'll keep this short. The 4 is better for turbo than the 6 due to the 4 having an iron block. With just pistons (8.5:1 cast) Yuri is making over 250 Whp, and his is only a 1.8L, not a 2.0L (the engines are identical except for the rods and pistons). The Beta2 in the GK does have some minor external changes, such as a MAP sensor instead of a MAF sensor, and different cams, but otherwise they're the same. With just a piston swap, the 4 in the GK should be able to make 250Whp at about 10 psi, no problem.

EDIT: Here's a post about Yuri's car:
http://www.hyundaiperformance.com/forums/topic.php?t=18733

Ignore all of the talk about MAF sensors, as the new Beta2 uses a MAP sensor instead.
[/body]
Ummm....Yuri has a 2.0L. He has the Tiburon FX.
 
#9 ·
According to that the crank would not even get half a chance of reaching critical speed before the block fails, but without the numbers this is just an uneducated observation at best.

Long live the BETA!:evil:
 
#11 ·
Hey all,

Thanks for the reply everyone.

When I was talking about the Hyundai mechanic, I knew someone would bring up the fact that it didn't make sense. I agree. However, on the flip side of that, could it really be? I have talked to many Tib owners in Korea and from what they have told me, the internals of the motor isn't all that great for turbo. I did see the V6 HKS turbo Tib in Korea that is just blowing the doors off of cars. Pretty crazy stuff.

FYI: I read in the Korean Auto Show review that there is an AWD Tib with 280+hp? They only made 10 and was sold for X amount of Won, which was equal to $29,000 US dollers.

* The truth is, being a Honda guy since day one, it is hard for me to have a change of heart so fast. I am just wanting to gather all the accurate information about turboing the 4cyl. before I go purchase a Tib. My goal is to blow the doors off of the typical Hondas and Acuras around here.

Having great experience with tuning Honda engines, it is very hard to beat their specs. I know some people think Vtec is all hype, but let me be the first to tell you, your wrong. Before I get crazy over this, I'll stop right here because that is a whole new avenue.

Thanks again to those that provided the info on the Tib motor.
 
#12 ·
Well, the V6 will blow the doors off Hondas and Acuras, in stock form. But there's not much headroom because the block is supposedly weak, due to aluminum construction. The Beta only makes 137hp stock, so you won't blow the doors off any Acuras. But because of it's solid construction, primarily it's iron block, you can do a lot more. But in the end, for most practical purposes, you'll wind up at about the same place with either one.
 
#13 ·
If you plan to go turbo and go all out then stick with the 4cyl. Its not going to kick any ass stock, but it will put a big ass grin on your face when you turbo it. Now if your not going to spend lots of money you could supercharge it. Or you could go N/A. The Delta is known to shows a very good response to modification to the 240WHP mark.
 
#14 ·
Originally posted by 4doorGL
[body]
Ummm....Yuri has a 2.0L. He has the Tiburon FX.
[/body]
Oops. His profile says '98 Tib SE, so I just figured he had the 1.8L.
 
#15 ·
just going back to the topic of the v6 blowin the doors off honda and acura's for a sec... Last summer there was a Drag Warz event held near Lethbridge. The local hyundai group here in Calgary that we have formed went down there with about 15 tibs. The races were set up in three catagories: N/A, FWD forced induction, and RWD forced induction. A few of us raced, and as it turned out, one of our guys with the '03 V6 GT tib won the N/A class. He has no mods whatsoever. :) I'm sorry, but the look on the faces of some of those ppl with teg's and civics with I/H/E, pullies and soforth was priceless when our tib came out on top. By the way, that's not meaning to bash honda owners, it's just nice to see a little justice once in a while :rambo:
 
#16 ·
Originally posted by i8acobra
[body]
Originally posted by 4doorGL
[body]
Ummm....Yuri has a 2.0L. He has the Tiburon FX.
[/body]
Oops. His profile says '98 Tib SE, so I just figured he had the 1.8L.
[/body]
The Tib SE is the FX with the Shark Wing and a few other things on it.