1G 20psi/big16g/ no fuel cut on stock injectors?

[slowspool91]

Hi to everyone I'm new to the site an fairly new to DSM's but not to automotive mechanics.

I have a 1g Talon TSi AWD with few mods such as hard upper IC, 3"in turbo back exhaust, TDO5h big 16g, Walbro 255, still on stock side mount. My question is I have the internal gate set at 10 psi, it'll hold till around 5,000rpm then creeps fast to around 20psi. I know that on stock injectors that's not safe nor should it be achievable but there is no fuel cut or hesitation it pulls smooth why could this be?

I've been running NGK bpr7's as a step colder from stock, on inspection of the plugs they show lean but not deathly lean. I know its not good being lean so I'm asking for any advice or help on why this happens an how to stay safe other than keeping my right foot out of the throttle?

Would bigger injectors and DSMLink fatten and smooth out a good tune for it as its my daily driver?
Is a good way to stop the boost creep such as externally gateed O2 housing? I know there's a few questions going on but I would really like this solved and fixed.

Thanks for any advice that may come. If anymore info on the car or setup is needed just ask any I'll gladly post it

 

[Bflood]

Id say, if you have the money just buy a link, and say about, 650cc injectors and get a tune and you'll be fine. I know on my car i have a DSMlink V3lite, and all i have to do is type in my injector size in the menu, and it auto adjust the fuel setting's for me, i went to a performance shop and they hooked up a wide band to my car just to make sure it wasn't running to rich or anything and it was just fine. You don't need a external waste gate for a 16g, as for as means of controlling the turbo, i have an Avc-R boost controller, and it does an awesome job. Hope i helped.

 

[brian9397gsx]

You really should have a wideband and a datalogger. That's the only real way to find out if your OK we can't tell you with out knowing what your afr is and what your seeing for knock.

 

[JMS]

You could get alky injection for a little safety especially since you're still on the stock sidemount

Its probably pulling a lot of timing I would guess

Don't you want to do it right, get bigger injectors and DSMlink, then you can turn up the boost a bit and know you're running a nice safe tune?

 

[slowspool91]

Thanks for the replys guys... I understand I can't really give a good idea of what the afr's are till I get a wideband or now how much knock I'm seeing at a specific psi till I'm logging..I also only run 93octane shell v power so its not octane knocking I wouldn't guess ?? ...I want every thing right that's why I ask on the forums.....I was thinking get link an 650's as mentioned that should solve any problem an keep me safe with a good tune ...I was just really curious to y it was pulling 20psi on the stock injectors. I know the injector duty cycle had to be at max but there was no fuel cut at wot any way I need a good boost controller but even if I run a controller won't it still have creep when I hit what I've set it at if my wastegate won't hold that ( example# ..watesgate ajusted to 15psi with no controller what I'm aiming to run safley till upgrades are made ..as for when I have a controller set to 15psi or 14psi just so its not point less example so when the controller sees 14psi an actuates the gate it should hold fine being under what the gates set at..since its creeping bad now won't it just hit 14psi an start creeping if my gate with no controller won't hold 10 psi after 5,000rpm it shouldn't hold any better just running a boost controller should it ???? .....

thanks a bunch for all the replys an help full advice.an I hope to help out the same when needed

 

[Bud92gsx]

16g's creep..Here are some mods that help with creep.. http://www.dsmtuners.com/forums/art...boost-creep-modified-wga-peepers-mod-how.html

http://www.dsmtuners.com/forums/art...oler/186525-how-cure-boost-creep-porting.html

 

[glustic]

Definately port that turbo, and get a wideband. They can be had on ebay for around $150.
Also get better injectors... I would get a set of 550s unless you have plans for a bigger turbo
Lean = no bueno on no tune