There's got to be more to this story. ZZP has done a million dyno pulls, and I'm fairly sure that they didn't drill the thermostat on all of the cars they dynoed.

 

That's what I'm saying, maybe they'll see this and chime in.

 

Really doubting it was a ZZP dyno. You don't make a 710whp LNF without noticing that these cars sit around 200. My car proabably saw 220 on the dyno, I don't know exactly because I wasn't driving but ambient was 97*F.

 

Well they set it so that the fan now comes on at 190.

Yes. Well I think it was reaching 207+ after some time, but I've seen that on the street before. Usually it stayed between 201 and 205 on the street.

No it's an LNF thing. Performance autowerks sells them. I was talking with them and they said it yeilds pretty good gains on the top end. It's more popular with the kappas, but I've seen cobalts on here running it as well. It's a pretty inexpensive mod too.

Part of the problem is the hood on the kappas opens opposite of the cobalt, so there's no real good way to get airflow across the motor. They weren't just doing back to back pulls either, there was a few minutes of cooldown between the pulls.

I don't think I mentioned it either, but I'm running their zfr so that definitely adds more heat. Idk if you'd consider that "more to the story" . I'm going to make build thread detailing the zfr and stuff on the car. There's only a few other kappas running the zfr.

 

Oh it was Zzp's dyno, right there in Wyomin, Michigan . I've got pictures to prove it.

 

Not to sidetrack too much but I had the Werks phenolics on my Cobalt. Intake to head, and intake to throttle body. In 95+ degree weather at Darlington this summer we ran 14 consecutive 50 second AutoX laps with about 3 to 5 minutes between each. After each lap we opened the hood, one of us sprayed the intercooler with a little water while the other checked tire pressure, swapped driver and ran. At the end of the 14 laps I was unable to touch the hot side charge pipe. However, I was able to lay my fingers on the intake and while it was hot, it did not burn me. I was also able to fully grip the throttle body in my hand, it wasn't warmer than ambient temp.

They work. Circle track and drag racy guys have been running them under their holleys for years and years.

 

I wouldn't mess with the fan setting on the LNF. LNF like to run hot. I get the best numbers out of mine when it is running hot. I normally see up to 207 in mine and I have never seen any knock, even at those temps.

 

Temp is based on thermostat not fan setting...fans turn off anyway above 30-40 mph anyway.

 

My Solstice sits around 195 while cruising and creeps up to 205ish at lights. At the track it never went higher than 207 by the end of the 1/4.

Did you share your dyno #s? 60-100 times?

 

No, I haven't. I was going to wait for a semi-sunny day to take a few engine bay pics and then write up a detailed thread on it, which hasn't happened yet. It dyno'd pretty low, 360 wtq and 320 whp at only 10 degrees of timing up top. On the street, thanks to the increased airflow, it was able to take 14 degrees of timing up top, so it's anyone's guess what it's really putting down.

 

sounds fishy they dyoed my car witha zfr does that mean i should have gotten 3 holes drilled in my thermostat. damn i didnt get any guess i got jipped.... story sounds real fishy something else must have been going on.....

 

Maybe you do and you just don't know about it

If there was anything else going on, they neglected to tell me about it.

 

Well what was the temp outside? My car usually runs at 194 degrees up to 205 on a hot day. Standing still on hot day up to 210. It's normal

 

Update: She is now throwing a P0128 code (a faulty thermostat code) . Shortly after, it started throwing a P0300 code (random misfire). I also noticed for the first time since my thermostat was modded, that the car was running at 200 degrees just driving on the freeway, but it's a bit cold outside today so I find that odd.

 

No. When it wouldn't ever go below 210 with the fan on, combined with having a stock IC on the car, we decided to make it run a little cooler.

 

and this is why your car is slow... lol

 

corrected

 

What is it with you guys? His car ran hot. We have dyno'd plenty of Kappas. None ran hot like his. Afterwards, it ran right around 200. I feel 190-200 is ideal for the LNF.

Aaron, make sure your fans are not coming on early. Fan settings in HP tuners do not always work correctly. Also, I was not expecting you to winter drive your Solstice. If you are going to drive in cold weather, then a stock Tstat would be better. You might run in the right range just from replacing it. We didn't have any new ones in stock.

You have high goals for your car I see...

 

which is why I posted a followup that you didn't quote -

 

Sorry, I was posting as I read. Thanks.

 

[QUOTE=Matt M;7182866]
Aaron, make sure your fans are not coming on early. Fan settings in HP tuners do not always work correctly. Also, I was not expecting you to winter drive your Solstice. If you are going to drive in cold weather, then a stock Tstat would be better. You might run in the right range just from replacing it. We didn't have any new ones in stock.[QUOTE]

Ah good call, I'll have to check the status of the fan cycles. I wouldn't call it winter driving , it will be stored in the winter, but I do drive it until just before the snow flies. Maybe I'll play around with it a bit. Pull out the one you guys modded, and only mod a new one half as much, with say 1 hole.