Okay cat-fight aside, I have the ZZP S3 h/e and I like it just fine. It's been on for a while now and I've had zero issues. Install was very easy and it came with everything you need to do it. When I did mine I took off the bumper since that only takes like 10 minutes and it makes your life a lot easier than trying to bend around all kinds of stuff. I bought the ZZP one because at the time it was the only h/e that totally filled out the lower grille. That being said, I've never used OTTP's h/e but I'm sure it's just as good as the ZZP unit.

 

Zzp zzp zzp zzp the only h.e worth getting. Ottp has had nothing but issues with there nipples at the bottom.... They were crap and prob still are because all I hear about them are Negative remarks. Zzp is the way to go

 

You never answered my question .... See post #19.

P.S. Serious question not being an ass, so don't get defensive.

Replace with a 1/4" NPT plug = zero issues. Not really a big deal, nor a reason to say their heat exchanger is crap. I agree their past version are no where near as good as ZZP's S3, but their newest version is very nice no matter what people say. Everyone is judging them by their older versions, which were indeed chinese cores, and bar & plate design (which is a shitty design for a heat exchanger). Their newest is a dual pass radiator style core just like ZZP's. They are both good heat exchangers.

 

Well my iat2s are about 15-20 degrees warmer then ambiant, and i run a 2.6 with no other cooling mods other then the s3. meth if for bosot and i dont even have it anymore lol...

Oh yeah and when i ran meth i only used 100% meth and not any mix so three wasnt really any cooling other then a few degress

 

Pulley size really has no effect on crusing temps since youre not in boost. 15-20* over ambient is right where I am as well. The only other cooling mod I have would be the mixture I run which is 80/20. Not arguing. Just saying.

What are your IAT2's at WOT after a pull?

 

the best thing about the OTTP h/e is that you can easily drain everything outta it if you run different mixs of coolant and water in summer and winter.

 

Thank you for being one of the few mature people in this thread man

 

Cruising I see 8-10 deg above iat1. crusing doesnt matter though, comparing iat's with others in general doesn't matter unless conditions are the same between compared cars.
WOT end of 3rd I believe 30-40 deg above iat1 off hand without looking at a log...
90-100 deg weather. prob about 30-50% humidity.

 

Not a problem haha. This forum has been shot to hell in the last year because so many people have no respect for each other on here and can't understand if someone else has a different opinion. It get's old

 

they get to about 40 -60 over ambient for two gear pulls like say from 2 to 3rd. Pulley size should actually because you are still incresing flow. If you think about it. The sc is spinning fast so it might make it a little warmer. or somewhat cooler. Im pretty sure i am correct!! And about the mature quote ontop, correct. But start looking at yourself bro befroe you talk!! I was trying to help and you came in here thinking you knew everything. Ive dealt with almost every product on this earth known to man for cobalts and ZZP STANDS OUT for there more superior products. And i am not saying OTTP is not godd, or there products suck, but what i am saying is in the cobalt world, ZZP IS # 1

 

Final vote ZZP wins by a Land slide lol. I love my S3 no problems with it besides a couple of bugs killed over time

 

Agreed man !!

Never said I knew everything. Never said that once. I never said OTTP's HE is better than ZZP's either. Originally I came in here to give the OP some information on one of the heat exchangers he was questioning (OTTP's). People jumped on me for simply stating some facts about their newest version which a lot of you know nothing about (yet), because it pretty much just came out (less then a month ago). Everyone is basing their facts about OTTP's HE from their earlier versions. I simply stated facts given to me, and through my research. I have been around for a while, and researcing the Cobalt SS/SC since 2005. I know my stuff not everything, but enough.

Thank you !!! I said that to you before, and you landed the remark about how your IAT2's are lower than mine. I mentioned about conditions, and you ignored me. Maybe we got off on the wrong foot, and all of the arguments between us was just us being pig headed .... who knows, but at least we can agree on something now.

 

Yeah I said mine are lower, but they're to be taken with a grain of salt, they're like a dyno # basically. Just measuring something different. LOL.
I do also have dual pass endplate...I assumed since you had st3 stuff you had it also. That has littler to do with temp drop like the h/e and moreso bettering the system and recovering quicker though.

 

Nah, I dont have a dual pass. I pieced my GM Stage 3 kit together. I have the PCM updated by Trifecta with A/C & pulley, but never got the end plate. The end plate def. helps.

 

That it does but I'm going to go with ZZP's Single pass setup. Even more cooling that the dual.

 

Agreed.

 

Allright i first started working with toyota as a diag tech, and then i decided to jump to a damn GM, Last mistake ill make lol. Great car for about a day until somthing else happens lol. staged i wasnt meaning you knew everything i was meaning you knew everything about the h.es.... I built my car from the bottom to top, i know what there is, i know what ther isnt, ive done many ss here in kentucky, ive put different types of h.es, ive tuned corvettes all the way to a cavi lol. in the gm market soi do know what i am talking about.l And like i said before OTTP is just another place to get parts. I hope ottp changed eevrything about there h.e.. larger core no damn nipple on the bottom, larger fluid tanks. But your iats are gonna also be affected by, gear selected, ( Pulley size) Exuast, intake size, porting of head or sc. My iats2 in third gear doing 75 stay about 10 over ambient. lol..

 

Just a little pricey at the moment.

 

Yep, youre totally right about that.

That's why it's tough to compare IAT2's and Heat Exchangers. Their are so many factors to take into consideration. Just like 05Slowline said .... Comparing IAT2's is like comapring dyno numbers. To many factors that end up changing the final outcome

 

Just get as many cooling mods as possible and the better off you shall be. /thread

 

correcto mundo, each thereown. Cooling mods matter why dont a company make a ac system that is only for the ss. But it dont run off the engine, but say like a elitrical motor. And then itll always be cool, and your iat2 will be cooler then ambient. lol for real...

 

That would be cool the killer chiller is similar but still runs off the motor.

 

I like the S3 it fills in the bumper nice but I went with the ottp heat exchanger because I got the stage 2 kit from them and the heat exchanger comes out to only 150 dollars versus the S3's 220 dollars.

 

my stage 3 was included in the ZZP Stage 3 kit and ended up being about the same price as your ottp.

 

No need to talk badly about people. We never claimed to make the heat exchanger, we made the kit and used to weld the tabs on top of the frozen boost model you now sell. We decided not to compete and with you on that unit, so I designed a heat exchanger to fit in the cobalt front grill and picked out the core it would use. Yes it's made in china, just like two of your cores are. The only reason we will have new models is because we are always improving the design, customers don't like the drain location so it will be moved.