New to CI and modding in general.
- Thread starter Chappy
- Start date
Chappy
New Member
So I would get better performance from a 4-1 header on my GS-R?TegSox said:Who the hell told you that? It's BS.
Timing belts on Tegs need to be changed at 60K miles. What manual told you 105K? I've never heard that mileage number thrown out for a T belt change :???:
I was under the impression that 4-1 headers increased high end power only...
Thanks for clearing that up for me.
Wow. I guess I should definately get it changed then. Thats what my father told me he saw in the car manual. I think I am going to go check for myself now tho...
TegSox
Super Duper Moderator
You'll see HP gains throughout the entire RPM range with either a 4-1 or a 4-2-1. The stock exhaust manifold is very restrictive compared to any aftermarket header (well, almost any).
When talking about all the general brand name headers that bolt up at the stock cat location, the 4-1 will show more gains in the upper RPM's, the 4-2-1 will be stronger in the midrange.
Hybrid headers with longer primaries/secondaries, and a collector that bolt's up beyond the stock cat location can outperform either the 4-1 or the 4-2-1 throughout the RPM range, but are alot of money, and obviously, are more work to install. Not a simple bolt on like your basic DC Sports, Greddy, ect....
When talking about all the general brand name headers that bolt up at the stock cat location, the 4-1 will show more gains in the upper RPM's, the 4-2-1 will be stronger in the midrange.
Hybrid headers with longer primaries/secondaries, and a collector that bolt's up beyond the stock cat location can outperform either the 4-1 or the 4-2-1 throughout the RPM range, but are alot of money, and obviously, are more work to install. Not a simple bolt on like your basic DC Sports, Greddy, ect....
Chappy
New Member
I looked in my owners manual and it says under the timing belt section,
Replace this belt at 60k miles if you regularly drive your car in one or more of these conditions:
Then on the maintenance schedule it says to replace it at the 105k mile interval.
Just thought I would let you know. I can give you pics if you want.
But I still think I am going to get it changed. 8)
Replace this belt at 60k miles if you regularly drive your car in one or more of these conditions:
- In very high temperatures (over 110 degrees F)
- In very low temperatures (under -20 degrees F)
Then on the maintenance schedule it says to replace it at the 105k mile interval.
Just thought I would let you know. I can give you pics if you want.
But I still think I am going to get it changed. 8)