professorN-Ray

After installing my admin tuning 3" cai on my vq35hr the engine when started surges to 3k rpm then goes to around 300 rpm and tries to die. I am getting a tune asap. Does this sound normal for a 3" cai install on a vq35hr with no tune?

Surfer90291

You can't install a different size of MAF without a reflash. The ecu is having a hard time figuring out the air ratio. Put your old intake back until then

nizmo_0385

iTrader: (5)

Lol.

travlee

iTrader: (8)

i thought this was common sense.... guess not

professorN-Ray

I understood that just wanted some others input appreciate it . im just waiting to get a reflash im not going to re-install stock airboxes .

bealljk

iTrader: (13)

not on this forum!

bigger intake = more air = WAY more horsepower!!!!

had nothing to do with the airboxes...do yourself a favor and read-up on how MAFs function and why changing to a 3" intake (and changing nothing else) confuses the ECU.

when you go and dyno tune will you have your tuner run a few passes with the OEM setup and then swap on your new 3" intakes and let us know how much power you gain?

professorN-Ray

Thanks for the info i used the term airboxes because the intake tube leading off the airbox is where my MAF plugs in its all made in one piece . i have a basic understanding of MAF functions and why this happens when you change the intake tube diameter especially where the MAF itself fits. I dont believe i am going to put my original airboxes back on for a baseline tho im not concerned with gaims as much as havimg the car run nice and crisp with throttle response and a good smooth power curve and just run its best for what it is with the bolt ons. But on the other hand i would like to see my gains and know my bolt ons are making an improvent but i have to go out of town about 2 hrs for the tune now that all the fitment is perfect on intakes it would be easier to reinstall when i get there if i were to put stock airboxes back on but i dont like the idea of changing parts out of town when i dont have too. Ill be taking a truck and car hauler

bealljk

iTrader: (13)

i think it'd be foolish to NOT to get a baseline! I'd be interested seeing what sort of gains the HR would put down.

what are you tuning with? Assuming Uprev? Do you need their MAFs for the additional air flow these intakes will provide?

Surfer90291

Full 3" intake, headers or tp and exhaust should get you around 300whp.
Oem MAF sensor will be ok.

bealljk

iTrader: (13)

Dont tell me ... Tell the OP!

Surfer90291

Op apparently needs to do more reasearch.

travlee

iTrader: (8)

Ya think?

nova15566

iTrader: (2)

We offer remote tuning over email or Facebook messenger with live video chat.
we can get you setup with an uprev standard kit and tuning package or we also have a cable rental option (have to buy a license)

https://www.nedautoparts.com/products/limp-mode-tuning-for-uprev

pm me if you would like more information. We specialize in large bore maf tuning as we make them for hr vhr and de/revup cars.

email is LimpModeTuningNED@gmail.com for fastest contact or via our facebook page
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https://youtu.be/2ECCofH0DP4

https://youtu.be/kejM36av0Kk

https://youtu.be/0VGRO4Nd_aM

professorN-Ray

appreciate the info. i knew after some more research that i didnt need to upgrade maf with an NA set up like mine i dropped the car off today at the tuner

professorN-Ray

man i would love to have had a baseline it just wasnt my best option right now . i agree with you totally having a baseline and knowing your gains and seeing improvement is half of the point but i trust my tuner and know i will be getting good gains. Wise to baseline yes , '"Foolish" not too i disagree

professorN-Ray

Thank so much for the response. I have heard great things about you guys and now that have an uprev license i will definetely be looking to you guys in the future whnn i order eps throttle bodies

professorN-Ray

i have seen you all over this forum with nothing but negative comments and no help from this supposed wealth of knowledge you have we get it your a smart guy but do you constantly have to validate that with yourself by putting others down . also i never asked why it was running like crap i just wanted others input .

professorN-Ray

300whp id be a happy camper!!!!

Surfer90291

Good luck and would be cool if you posted the graphs

professorN-Ray

will do shouldnt be know more than 10 days possibly soone . no baseline but mods with uprev tune are. Berk test pipes, Borla td catback, stage 2 clutch , lightweight 17lb smf , and admin tuning 3" Cai