Thread: zzp intercooler

I know Lee, thats I am try to break things down and make it easier to follow And you know I dont have an issue with that! An apples to apples comparison is the only way to see what is going on. You are correct that the hole in the throttle body isnt that large, but it is much larger than the bottleneck downstream that was added in that didnt exist in stock form. Like anything else that have to move from A to B and kink, bend, tight corner, etc will restrict flow, especially with all of the above PLUS a greatly reduced size is at hand. The smalled point of the passage is the hole in the throttle which is the tail end of the path. The modified intake is the largest restriction right at the start of the path where it needs to be the largest in order to move adequately from A to B. The only way to know what you have is to put a pressure gauge right on the fill cap and go make some WOT runs and see what it does. Again this really isnt comparing apples to apples unless you do it as your car sits THEN pull the IC back off and test with factory operation...... But I know you dont want to tear the car back apart to find out lol! Also you will have to run the same boost level and rpm for the A-B comparison otherwise it wont be as accurate.

Originally Posted by Trannyman95

I know Lee, thats I am try to break things down and make it easier to follow And you know I dont have an issue with that! An apples to apples comparison is the only way to see what is going on. You are correct that the hole in the throttle body isnt that large, but it is much larger than the bottleneck downstream that was added in that didnt exist in stock form. Like anything else that have to move from A to B and kink, bend, tight corner, etc will restrict flow, especially with all of the above PLUS a greatly reduced size is at hand. The smalled point of the passage is the hole in the throttle which is the tail end of the path. The modified intake is the largest restriction right at the start of the path where it needs to be the largest in order to move adequately from A to B. The only way to know what you have is to put a pressure gauge right on the fill cap and go make some WOT runs and see what it does. Again this really isnt comparing apples to apples unless you do it as your car sits THEN pull the IC back off and test with factory operation...... But I know you dont want to tear the car back apart to find out lol! Also you will have to run the same boost level and rpm for the A-B comparison otherwise it wont be as accurate.

What you say makes sense, and I get it. I'm just wondering if it is possible that no harm is being done. Without doing what you mentioned, we don't have anything to really go by other than past history and that looks favorable. And you are right, I'm not touching anything.LOL After all it took me a long time to carefully assemble this in the first place.

Worst case IF this is really a concern that should be addressed or avoided from the beginning, I can see excessive gasket oil leaks-minor seepage, excessive oil consumption, loss of power on a very low level at higher rpms.

Originally Posted by Trannyman95

Worst case IF this is really a concern that should be addressed or avoided from the beginning, I can see excessive gasket oil leaks-minor seepage, excessive oil consumption, loss of power on a very low level at higher rpms.

You work on a lot of cars. Have you seen this yet. I only have my car and TooMch's to go by. He has a lot more mileage and has beat on his quite a bit. So that and the forums is all I have to go by. I realized the "new" IC's have only been out since 06 but there should be something showing up by now.

Sorry Lee, everyone I have done an intercooler for has wanted to use a breather outside of one I just finished up a few weeks ago which isnt going to display any signs yet. Most of the intercoolers that I have installed were the earlier ones without the hole and had to run a breather anyways.

Originally Posted by Trannyman95

Sorry Lee, everyone I have done an intercooler for has wanted to use a breather outside of one I just finished up a few weeks ago which isnt going to display any signs yet. Most of the intercoolers that I have installed were the earlier ones without the hole and had to run a breather anyways.

Dang it! How can I go stir up trouble elsewhere without something solid to back up my questioning.

I think I will persue this with Zooomer. I'm interested in finding out what kind of testing ZZP did to determine that groove was sufficient to do the job. Not even sure why they didn't make the relocation path wider with less of a bend.

Dave, thanks for the PCV explanation for the s/c 3800 (best I've seen) and indulging my need to know.

I'm sure this will help others to make a choice when confronted with the IC decision.

I made a new post to carry on this discussion because we are way off the OPs question.

http://www.grandprixforums.net/f18/p...ling-6133.html

This coversation should be relevent to the OP and his decision as to what do about the IC purchase.

Glad to hear that he replied to you with some info and Im sure thought did go into this and he is certainly 100% correct about NOT getting any sealant in this area. The other problem with this though is that there is only a very thin area to seal between this passage and the open into hole under the intercooler, if you have seen the intake you know what I mean-Lee you probably noticed this. Not getting any sealant in the passage means next to none in this area at all, and garlocks need all the help they can get to seal. Take into account oil soaking into the gasket and breaking it down over time, oil "coking" if you will and blocking the small passage off. Not everyone tears their car apart multiple times a year to inspect and clean things and a 5 year run without teardown would really prove its worthiness. As mentioned earlier a bigger passage would be great but they did what they did because there just isnt much room to work with.

Well, since this is appropriate to the OP, I guess I'll respond here.

When zzp looked at my stage 2 setup they took it apart and said rtv had gotten into the track. Said they fixed it. I have one of the early ones that had the pcv fix. My squeal happens less often but it still happens. And when I just pulled my intercooler off the garlock showed signs of the oil soaking into it. I'm using a trimmed OEM to reassemble.

OEM gaskets FTW! Garlocks suck so bad it ain't funny. I can't believe people still buy those POS'....