Author Topic: Just general info on boost (Read 5052 times)

LoneWolf · « **on:** April 04, 2008, 11:52:43 am »

Anyone know what the standard boost pressure is on a mk2 Golf GTD?

mines only giving me 3/4 of a barr, and its as slow as hell.

also, does anyone have any idea where to start tuning up the boost side, or even just checking it for leaks?

Cheers everybody,

Matt

burn_your_money · « **Reply #1 on:** April 04, 2008, 01:04:45 pm »

I think 8-12 lbs is stock. I always forget.

There is an excellent writeup in the FAQ "making your 1.6 faster" or something to that tune. Read it, re-read it and go nuts

LoneWolf · « **Reply #2 on:** April 08, 2008, 06:26:34 am »

Okie dokie, ive read through the FAQ, done what it says, but all im getting is LOOOAAAADDDSSSS of pure black smoke, and its no faster than it was, could it be the turbo acting up?

the cars done just shy of 204,000 miles, is there any way i can test for problems?

boost is only at 0.75barr :?

jimfoo · « **Reply #3 on:** April 08, 2008, 07:19:07 am »

Maybe your wastegate is stuck? Try it with the line for the actuator removed, and the boost should go up if the actuator is actually closed. That will eliminate any settings. If it's still low boost, then it's time to work on the actuator. I'd undo your mods or not drive the car until you get it worked out as you are probably getting really high EGT's with so much smoke. You do have an EGT gauge don't you? If not, GET ONE BEFORE YOU DO ANYTHING ELSE!!!

LoneWolf · « **Reply #4 on:** April 08, 2008, 08:40:12 am »

EGT= Exhaust Gas Temp?

if so then no, i havent got one

jimfoo · « **Reply #5 on:** April 08, 2008, 10:25:15 am »

Quote from: "LoneWolf"

EGT= Exhaust Gas Temp?

if so then no, i havent got one

Yes. You better get one before doing any mods or your engine won't last long...

LoneWolf · « **Reply #6 on:** April 08, 2008, 10:34:36 am »

Why is it so important? everyone keeps mentioning these, but i dont actually understand why its so important?

truckinwagen · « **Reply #7 on:** April 08, 2008, 10:41:42 am »

running EGT's too high will damae valves/seats and can destroy the turbo!

LoneWolf · « **Reply #8 on:** April 08, 2008, 10:46:35 am »

Hmm, could be worth looking into getting one, but even if it does melt everything its not too bad, its not like theres a shortage of TD lumps in the shed anyway, i can always throw another engine together

jimfoo · « **Reply #9 on:** April 08, 2008, 11:09:59 am »

If that's your outlook, why waste our time on your problems? Sounds like that's what you will be having from now on, problem after problem. :roll:

LoneWolf · « **Reply #10 on:** April 08, 2008, 11:12:43 am »

Calm down dude, all i was saying is if i need it ive got pleanty of spares so i wont be car-less, im not trying to sound like a twat, and if i have then i apologise :oops:

jtanguay · « **Reply #11 on:** April 08, 2008, 12:04:32 pm »

i've been running my turbo with the wastegate disabled for quite some time... on a highway run i'll reconnect it because the boost spikes way too much, and in 5th gear the egt's skyrocket.

no problems so far, except quicker oil burning. with boost set to 10 psi it barely burns any.

you could try blocking off the wastegate boost, but none of us are responsible for what you do to your engine :wink: :lol: just need to exercise caution when driving and keep an eye on the amount of black smoke coming out the rear. (poor man's egt gauge :lol:) too much = high egt's = very bad. just adding boost alone will not cook your engine, unless someone set up your LDA to add more fuel past 10 psi.

for the wastegates with the solid line you'll need to cut it and then install a soft rubber line. with a soft line you can actually pinch it off with a small pair of vice grips for testing purposes...

i think maybe jimfoo doesn't want to see a TD blown because of irresponsibility, but the engines are yours to do with as you please... :cry:

Sc0rian · « **Reply #12 on:** April 27, 2008, 02:31:30 pm »

what temp is to hot?

what is the temp that is ok?