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Turbo-ing My N/A L26 Grand Prix -Need Some Help



Re: turbo n/a grand prix help

ok so can someone tell me what should i do with the port that is in the top if the l26 lim ?? my car is a 2005 grand prix n/a and i just installed a custome turbo kit ! should i use it as a vaccum line or should i just leave it alone or should i just tap it out ?
 
Re: turbo n/a grand prix help

Maybe take pictures of your own setup instead of others so we know what were trying to help you with...especially the word "custom" means stuff we don't know what happenededed thur.
 
Re: turbo n/a grand prix help

grandprix5 said:
ok so can someone tell me what should i do with the port that is in the top if the l26 lim ?? my car is a 2005 grand prix n/a and i just installed a custome turbo kit ! should i use it as a vaccum line or should i just leave it alone or should i just tap it out ?
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NPT brass fitting for vacuum port. Looking forward to seeing pics. I've got a L26 U/L I'm thinking about converting to on my L67. The only thing holding me back is the TB adapter plate and needing new rails since the L67 ones won't clearance. :( I dislike the tacky M90 block off plate. You are gonna love the turbo kit. :)
 
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Re: turbo n/a grand prix help

The vent ontop of the L26 is used for the evap I believe.. its part of sucking out crank case gasses...

lotsa people leave it open, or even put a little breather hat on it.

Make sure you blocked the PCV port in the throttle body/adapter so you don't boost your crank case
 
Re: turbo n/a grand prix help

Ok il be posting pictured tomorrow and also what do you mean to block off the throttle plate port? ?
 
Re: turbo n/a grand prix help

khung88876 said:
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What tylerbinski is saying is you can just put a filter there, but some disagree doing that, it WILL allow unmetered air in. http://www.grandprixforums.net/has-anyone-done-2-46116.html Not big deal to me:th_lipssealed1:
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You have no option in a turbo setup but to open that to free air and tune for it or over the oil cap. You do have an option in a S/C or N/A setup and there is no reason to put a breather there unless you are running and intercooler which blocks the passage.
 


Re: turbo n/a grand prix help

ok soo FOSHO99 , said its ok to put a filter there but now omega said to capped off ?? what shhould i do ?? my car its a l29 and its turbo i think omega its right because i wont be able to creat boost with that port open ?? im confused !
 
Re: turbo n/a grand prix help

yeah sorry im going to post another threat because everything seems to be working fine but now im going to look fo cam or rockers !
 
Re: turbo n/a grand prix help

If wanting the most power then go with a cam. If you are ok with only utilizing that power a part of the time then go with rockers.

We still need pics though. Hows she running?
 
Re: turbo n/a grand prix help

Shes running good but im noticing that i may have a boost leak someone becuse its taking really long to make 10psi im going to try to make a boost leak test and find out whats going on at what point should my car should be creating boost? ?
 


Re: turbo n/a grand prix help

dude take pics and throw them up, and make a video of how your car is behaving so we have a visual reference... come on now
 
Re: turbo n/a grand prix help

grandprix5 said:
Shes running good but im noticing that i may have a boost leak someone becuse its taking really long to make 10psi im going to try to make a boost leak test and find out whats going on at what point should my car should be creating boost? ?
Click to expand...

A compressor map tells you all that info. What turbo are you running? What's the AR? Typically the higher the AR the longer it will take to get into boost.
I have a PT-61 that came with the ct kit. With the catback off it starts to build boost at 2600 RPMs. With the exhaust on it's about 3K RPMs when it starts building.
 
Re: turbo n/a grand prix help

my turbo its a turbonetics with this specs T3/T4 T04E-50 trim f1 62 wheel, .63 a/r but i just found the problem last night a really weird sound wascomming out of the turbo so this morning i pulled out the turbo and open it up and found that there was shaft play to all sides and check the turbine wheel it was really damage idk what happend but i already talk to import evolution so they can rebuild it so thats why it was taking really long to creat boost and il be posting pictures ones i get this resolve hopefully everything will work good !
 
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