now i did not do the solenoid mod... just the vacuum tank. i haven't had any issues thus far... was fast to do tho.

 

I'm only doing the Tank delete.

 

I also only unplugged them didnt remove the tank completely... i see there reasoning of putting it there tho... to reduce torque steer... its not on the sky's cause there rwd

 

Or maybe NLS. I'm a really good shifter anyway's so i'm not really worried about it. I cant wait to see how well she does. I will update the tred after i do this mod. Thanks!

 

well reason why i say it cant be that is cause they added it to the sky's for there gms1

 

NO ****! that's crazy. awesome news!

 

So this works? Actual gain in whp?

 

In stock form yes. We have no proof that with a currently tuned car however, spool time is increased for sure. Their is a guy that just posted he is going to dyno a Trifecta tuned car with a few mods. I have suggested that he does a test with the Tank Delete. Let's hope he does it for us.

 

well wish i would of dynoed without the mod and with the mod comparison because a few weeks ago i did a dyno with just the tune and got 294/330

 

How is your car boosting now ? I did it because I wasnt getting the amount of boost I wanted. If you getting 22 or 23 psi now I wouldnt do it. But if all you do is drive it on the weekends and race you could do it.

 

Thank you. So the 6-7 whp gained and torque can be seen on a stock tune? That is awesome. I am planning on doing a baseline dyno on my car soon and I might give this a try.

One more question. Will this mod affect NLS?from reading it seems it affects the car in closed throttle conditions. Also isn't nls done by the PCM under 95-100% throttle or wot only?

Please post your thoughts.

 

my NLS still works...

 

I've successfully NLS'd with the vacuum tank bypass.

 

however, once u get tuned... if you dont do it quick enough u will get a misfire and that hot CEL lol

 

Interesting. Have you taken it back to the dyno since? Have you done any other mods?

 

This is a lil late hahaha. I have had my bypass valve and the vac tank complete removed and tuned for it over a year ago

 

^ You're only running a 13.7 with all of your mods?

 

No that was stock havent rune since.

 

^^^^^What alex said.


Maybe it needs driver mod stage 3?

 

ppl always ask me that so i fixed it and removed it

 

haha that works too

 

I think we need to test thing on a Tuned car. If we get good results we would need to sticky this.

Vote - Please sticky

 

Just gonna throw this out there... but I don't think the HHR SS has the vacuum tank and its FWD

 

Ill be up the track memorial weekend. theres races all weekend and Ill have some results with my ride which is just about maxed out on the stock turbo and clutch.

I think it has to do with the NLS. The extra vacuumn slows down the boost reference signal a split second longer for the turtle shifters . Since I put in my short throw I havnt had any problems pounding the gears. But I might not be right so dont take it to the bank.


http://www.facebook.com/photo.php?pi...c30dec4879ebc4

 

I'm actually going to agree with you here. because since i removed the vacuum tank its kinda harder to NLS. however, i dont do it much anymore