Wastegate.. Help Me!
11-02-2003, 11:22 AM
#1
Senior Member
Thread Starter
Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
ok so i have a stock hybrid turbo thingy, and *supposively* a ported stock wastegate.
Ever since i got the car my boost simply climbs higher and higher as the rpm's go higher and higher.
This I sorta knew cant be fixed by a boost controller but i got one just to see if maybe i was wrong...but alas i was right and the boost controller is useless right now.
So what are my options with the stock wastegate? can i convert to a better/bigger external wastegate, does anyone make a bigger wastegate for the stock location?
please help, or send me your old stock wastegate so i can test porting it to see if mine actually is ported
kevin.
Ever since i got the car my boost simply climbs higher and higher as the rpm's go higher and higher.
This I sorta knew cant be fixed by a boost controller but i got one just to see if maybe i was wrong...but alas i was right and the boost controller is useless right now.
So what are my options with the stock wastegate? can i convert to a better/bigger external wastegate, does anyone make a bigger wastegate for the stock location?
please help, or send me your old stock wastegate so i can test porting it to see if mine actually is ported
kevin.
11-02-2003, 01:18 PM
#3
Senior Member
Join Date: Jun 2002
Location: WA
Posts: 1,312
s4? I forgot what you have and im too lazy to hit the back button. Who ported it? Ive seen bnr's work on s4 wg's, and its good. S5, i did mine myself and its really really easy. You can take it apart and do it yourself. You shoudlnt have too big of problems with creep if its ported. You can also use the flap off a 3rd gen wg and enlarge the hole to that size, thats how bnr does it, or a s5.
as for telling if its ported or not, you'll know by looking at it.
After i ported mine i had no more creepy problems.
as for telling if its ported or not, you'll know by looking at it.
After i ported mine i had no more creepy problems.
11-03-2003, 06:27 AM
#6
Senior Member
Join Date: Jun 2002
Location: WA
Posts: 1,312
took me a collective hour maybe. Just take off the turbo, take off the back plate on the turbo and open the flap. You might have to bend the arm thingy attached to the flap to get it to open all the way, no worries, just bend it back when youre done. I used a dremel and some metal bits. If you have a die grinder, that would be better.. but dremel works. And then just widen the hole, dont go too wide though .. make sure the flap covers it all still
then put the plate back on, reinstall the turbo ... and youre set.
also forgot to ask, what are you running for boost, and whats it creeping to?
i would run about 7psi in 1st, 10 psi in 2nd, 13-15 psi in 3rd and 4th... then it would slowly drop down the further i revved it. Pretty ghettofied, but it worked
then put the plate back on, reinstall the turbo ... and youre set.
also forgot to ask, what are you running for boost, and whats it creeping to?
i would run about 7psi in 1st, 10 psi in 2nd, 13-15 psi in 3rd and 4th... then it would slowly drop down the further i revved it. Pretty ghettofied, but it worked
11-03-2003, 08:42 AM
#7
Senior Member
Join Date: Jul 2002
Posts: 563
its ported, i can send you pictures of the before and after if you like. there really isnt any more room to open up that turbo without bridging the two wastegate holes. i used a die grinder and a titanium carbide tip to open it up as much as it would allow. ill post pictures when i get home from work
11-03-2003, 01:25 PM
#8
Senior Member
Thread Starter
Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
Originally Posted by sidewinderx7' date='Nov 3 2003, 07:27 AM
took me a collective hour maybe. Just take off the turbo, take off the back plate on the turbo and open the flap. You might have to bend the arm thingy attached to the flap to get it to open all the way, no worries, just bend it back when youre done. I used a dremel and some metal bits. If you have a die grinder, that would be better.. but dremel works. And then just widen the hole, dont go too wide though .. make sure the flap covers it all still
then put the plate back on, reinstall the turbo ... and youre set.
also forgot to ask, what are you running for boost, and whats it creeping to?
i would run about 7psi in 1st, 10 psi in 2nd, 13-15 psi in 3rd and 4th... then it would slowly drop down the further i revved it. Pretty ghettofied, but it worked
then put the plate back on, reinstall the turbo ... and youre set.
also forgot to ask, what are you running for boost, and whats it creeping to?
i would run about 7psi in 1st, 10 psi in 2nd, 13-15 psi in 3rd and 4th... then it would slowly drop down the further i revved it. Pretty ghettofied, but it worked
1st - 10psi at redline
2nd - 13ish psi at redline
3rd - dont redline it but last time i think it was 15psi at redline
4th - never redlined but it will hit around 15psi at about 5-5.5k rpms
5th - never gone past 4k rpms so boost stays low.
i've been trying to baby it which means i haven't experienced the fun of redlining most of the gears yet.
but in like 3rd and 4th the boost just continually builds, no hesitation or slow down in the building of boost.
kevin.
