"Smaller" TR Reverse Split; Good or No?
12-08-2007, 01:15 AM
#1
TECH Apprentice
Thread Starter
iTrader: (6)
Join Date: Sep 2006
Location: UCLA
Posts: 330
Likes: 0
Received 0 Likes
on
0 Posts
"Smaller" TR Reverse Split; Good or No? Most people seem to love the TR230 as a reverse split cam.
However, being in Cali, I need to pass the sniffer (visual is easy).
My question is this, then:
Will the smaller reverse split (227/224 .569/.563 114 LSA) pass emissions assuming a good tune and all that?
Also, is it still a good cam? I tried searching and only found like one topic, lol.
However, being in Cali, I need to pass the sniffer (visual is easy).
My question is this, then:
Will the smaller reverse split (227/224 .569/.563 114 LSA) pass emissions assuming a good tune and all that?
Also, is it still a good cam? I tried searching and only found like one topic, lol.
12-08-2007, 05:25 PM
#2
Do they actual drive your car on the dyno or just do an OBD2 plug in test? If it's the OBD2 test you can have your computer re-programmed to pass no matter what you have done (except for maf delete).
12-10-2007, 03:26 AM
#5
Teching In
iTrader: (1)
Join Date: Sep 2007
Location: Texas
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
Cannot tell you about the emissions matter but I can help a bit with info about reverse split cams, they usually give you more mid range power than a traditional cam but a little less power on the top end. RS are cams which are friendly and can be used easier for a daily drive since they give you torque at lower rpm's. If your car is a street/strip car you may have some questions about which type of cam you use. If it's a strip car go right for a traditional split cam and if it's a street car I recommend it but you might consider getting a traditional split. Its up to you, a friend of mine has one reverse split cam really similar to yours and daily drives the car to work.
Good Luck
Good Luck
12-10-2007, 02:44 PM
#7
In order to figure it out you need to calculate the overlap. There's a general range of overlap values that are considered to be able to pass emissions testing. I don't remember these formulas or values because I don't have to bother with it, but that should help you search wise.
Trending Topics
12-10-2007, 07:11 PM
#8
TECH Apprentice
Thread Starter
iTrader: (6)
Join Date: Sep 2006
Location: UCLA
Posts: 330
Likes: 0
Received 0 Likes
on
0 Posts
Ok, so I searched on overlap and read that -6 is a "smoggable" overlap.
For this cam it comes out to be -2.5.
But what is confusing is that the "smog friendly" TR224 on a 114 LSA comes out to only -4 overlap.
Am I missing something or is the difference (i.e. -4 > -6) made up for by the tune or the valve events?
For this cam it comes out to be -2.5.
But what is confusing is that the "smog friendly" TR224 on a 114 LSA comes out to only -4 overlap.
Am I missing something or is the difference (i.e. -4 > -6) made up for by the tune or the valve events?