Engine, Intake, Exhaust Modifications to your Normally Aspirated Hyundai engine. Cold Air Intakes, Spark Plugs/wires, Cat back Exhaust...etc.

Next Upgrade to make??

Old Jan 10, 2005 | 03:09 PM
  #11  
hamhead's Avatar
Senior Member
 
Joined: May 2006
Posts: 4,722
Likes: 0
Vehicle: 2001 Hyundai Tiburon
Default

You sure about the cam gears? Your going to need an hour or so of dyno time to do those (to squeeze the 3whp or so out of them), and then once you turbo your going to have to redo them again. They're not worth the money right now.

The Tigerlily probably has a mm or two that you can bore it out too. I would think boring that out to 68mm to match the Air-Ram would create nice results. Your going to lose power n/a if you do that now, though, because its too big of a path.
Reply
Old Jan 10, 2005 | 03:15 PM
  #12  
Casper's Avatar
Senior Member
 
Joined: Mar 2006
Posts: 1,061
Likes: 0
Vehicle: 2001 Hyundai Tiburon
Default

A 70 mm throttle body is too big for N/A. It will work great with a turbo, but being so big, it reduces the velocity of the air comming in and will hinder performance if used while naturally aspirated. I would wait on installing a throttle body that big until you go turbo in my opinion.
Reply
Old Jan 10, 2005 | 03:25 PM
  #13  
01tiburon01's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2004
Posts: 28
Likes: 0
Default

ok, thats what i thought, ill go ahead and order them then, put the cam gears and underdrive pulley on and set the BBTB and IM to the side..... and as for the cam gear dyno tuning.....thats the beauty of owning a shop, we have some machining equipment that the shop right down the street with the Dyno doesnt have so they said whenever we need it and they arent using it we can come over.

EDIT: if i added the 264 degree exhaust and intake cam in about 4 weeks, would it help to add the intake manifold and BBTB on then? or is that still way to much flow. i mean will it give me anything, cuz if it will just give me like 1-2hp i will go ahead and throw them on there too. I just dont want it to hinder my performance at all. And then that brings up, do i need to change anything on my fuel system if i add those cams?
Reply
Old Jan 10, 2005 | 04:21 PM
  #14  
UltraTibby's Avatar
Senior Member
 
Joined: May 2004
Posts: 2,214
Likes: 0
From: Bel Air, MD
Default

You will need a way to tune your A/F ratio with larger cams. So either the SAFC or the eManage.
Reply
Old Jan 10, 2005 | 04:51 PM
  #15  
hamhead's Avatar
Senior Member
 
Joined: May 2006
Posts: 4,722
Likes: 0
Vehicle: 2001 Hyundai Tiburon
Default

Putting the 70mm on now is not going to kill his performance. It might still help his performance even since it is more matched to the IM than a 61mm one. For a Tiburon n/a, 62mm-64mm is optimum. And geez, come on, a TB is only five inches long. Having any cat in your exhaust is going to hurt performance more than running a slightly overdone TB for a while until you go turbo.

If your going turbo, even thinking about it, do not waste money on those cams. If you want a reliable, street-worthy turbo setup then those cams are a no no. You want lower lift and duration with a turbo.

You can't flow too much with bolt-ons if the velocity stays good. There is nothing wrong with buying an aftermarket intake, throttle body, manifold, and intake camshaft. You won't flow too much if they aren't overbored too much (TB and IM).
Reply
Old Jan 10, 2005 | 05:05 PM
  #16  
silvertibbs's Avatar
Senior Member
 
Joined: Oct 2003
Posts: 3,832
Likes: 0
From: Fort Erie, Ontario
Vehicle: 2004 Acura TL
Default

You will have no velocity in the IM when you go that big NA. You will lose a ton of low end torque due to the engine not getting enough air.

DO NOT install the Bored IM or TB 01tiburon01, you will hurt your performance in the long run. If you must go that way wait until after you go with the Forced Induction. Otherwise your car WILL be sluggish all the time.

Honestly I think the largest we agreed on was 58-61mm or something around there, I'll search for it.
Reply
Old Jan 10, 2005 | 05:11 PM
  #17  
UltraTibby's Avatar
Senior Member
 
Joined: May 2004
Posts: 2,214
Likes: 0
From: Bel Air, MD
Default

Since you are only talking about a few months between now and when you finally do go turbo it would be silly not to just lose a little performance now knowing that it will be 100 times better for you once you get the turbo ya know? Yes the 70mm TB is not good for NA. But who in there right mind is going to buy 2 different TB's in a few months? No one. One thing however I do agree with him on is the Cams. Unless you plan on having a 1/4 mile not street driven beast those cams with a turbo wouldnt be the best idea. Just get a 1.8L intake cam for your 2.0 and that will setup you intake side nicely.

As for saying that a CAT will hurt performance. Well that is true and not in the same sense. You said you have a high flow. So unless you want a testpipe (which 1, is loud as all hell, and 2 will set off you check engine light) I would stick with what you have. Unless you are looking at over 300whp I really doubt you will be able to see that much of an impact.

But in the end these are just each of our opinions and you have to take it for what its worth and decide what you want and what you are willing to sacrifice to get there.

tongue.gif
Reply
Old Jan 10, 2005 | 05:27 PM
  #18  
hamhead's Avatar
Senior Member
 
Joined: May 2006
Posts: 4,722
Likes: 0
Vehicle: 2001 Hyundai Tiburon
Default

62mm is probably about perfect for the Tibby. 64mm is probably pushing it a little too much, I'll agree with you there. Sure, your going to lose some low-end torque running a 65mm throttle body into a 68mm intake manifold n/a. The 70mm is not available on KSpec right now, so he won't be buying that one. The TigerLily is probably what I would go for.

Seriously though. He runs the 65mm TB to the 68mm IM for a few months. By no means is his car not going to be able to be driven around town. Its just going to be a touch sluggish. When he goes turbo, and he takes off the intake piping, he takes off the TB as well and bores it to match the IM. He is going to have the intake off then anyway.

Running that setup can't be worse than what I did with my GSX. First mod I did was run 3 inch piping, even though I was only turning 12PSI on the stock super small turbo and I couldn't run more than that anyway cause I was maxing out the BOV. Sure it hurt driving around town a little having no backpressure, but its harder driving around town now with 350whp.
Reply
Old Jan 10, 2005 | 05:36 PM
  #19  
01tiburon01's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2004
Posts: 28
Likes: 0
Default

so what would yall suggest as my next group of mods, i have about 1500 to play with, and dont say turbo or anything like that, i wanna build my engine up, ive already got most of the compenents for the turbo kit, but i really got to build my engine up because this turbo setup is a beast
Reply
Old Jan 10, 2005 | 05:40 PM
  #20  
hamhead's Avatar
Senior Member
 
Joined: May 2006
Posts: 4,722
Likes: 0
Vehicle: 2001 Hyundai Tiburon
Default

What type of whp goal do you have your car?
Reply


All times are GMT -6. The time now is 05:10 PM.