Glowing red. [Merged 1-7] Exhaust, turbo, glow, hot

[Goblin]

I know that if you drive a TSI hard and pull over and look at the turbo at night it will be glowing red and that is normal.

but...

If you are driving a TSI grandma style and pull over and look under the hood DURING THE DAY and the turbo is glowing red is that a bad thing?

If so what possibly could be wrong with it?

 

[Fabian]

^^^. My 1g had a pacesetter tubular manifold on it, and as everybody knows NOW, those things are junk because the metal's crap and they tend to crack all the time. It ALWAYS glowed red, even when I was on stock boost on the highway, you could ALWAYS pop the hood at night and I had a big cherry red manifold. Got rid of that one pretty quick.

 

[99rtguy]

do you still have a cat? are you dumping extra fuel for some reason? if you still have a cat and are dumping a lot of fuel, that might be a cause, or clogged cat.

 

[LandoAWD]

Glowing manifolds happen. I'd check your AFR and ensure you have the WG issue under wraps before asking again. Let's not forget that this has been answered 100x before and those results are accessible via the SEARCH feature.

 

[Defiant]

It is never good when something glows red...

Look again.

http://www.dsmtuners.com/forums/bol...-7-exhaust-turbo-glow-hot.html?highlight=glow

 

[918dsm]

wastegate is not closing off i dont think it doesnt get boost untill 6k and yes the cat is still on the car also there is no o2 sensor so im sure it is getting to much fuel but i've never seen it glow red before and it's a tubular manifold which i plan to get a log style very soon

 

[LandoAWD]

Major boost leak...and get an O2 sensor in the car.

Anyway to datalog?

Also, please post in English. Yes, that means you use these -> .?,"';:!

 

[91 TSi GP]

Oh yes, you defintalty going to need a O2 sensor ASAP or else your cars not going to run right.

 

[LandoAWD]

yeah your defintalty going to need a o2 sensor asap or else your cars going to run like balls

Also, please post in English. Yes, that means you use these -> .?,"';:!

This goes for everyone.

 

[918dsm]

sorry about that. I know i need a o2 sensor the car did not come with one, also i dont have anyway to data log i also need to get that. I got the wastegate to close and car is pushing out 20psi which i know is to much, also getting test pipe put in and soon o2

 

[LandoAWD]

You need to step back, fix the little things, get a logger, then get back into boost.

Driving with no O2 is silly, boosting an aftermarket turbo with no logging is risky, and adding more parts to the mix is pointless.

Maintenance first.

Also, please make sure your mod list is correct. I get ill thinking about aftermarket FI components and no fuel or fuel management.

 

[918dsm]

i am working on getting the problems fixed. It takes money and time but car will be boosting fine again soon. i bought an new wastegate hoping that fixes the boost issue. Having o2 installed next week

 

[turboback]

Alright, i have a 97 gsx when i started noticing my manifold glowing under normal driving on the highway speeds of around 70, i had just put a front mount on it. besides my exhaust it was stock. i was driving on the highway (normal) when for some reason i decided to check everything. i popped my hood and my manifold was crazy red like i dont think you can get this red even driving the car hard. my oil seals were going so i figured it was my turbo. i bought the evo III 16g not even a week ago and i am still having the same problem. my wideband is saying the a/f is fine like 15.0 idle and 14.8 driving. I need help please. i dont know what to do. even though my a/f are fine could it be fuel pressure? my timing should be fine becuase nothing is burnt up. any suggestions?

 

[hhuricane]

It's normal. The first time I saw mine glowing it kinda freaked me out. I could only see it at night and it was weird but I'm used to it now.

 

[91tizzy]

No it is not "normal"....under hard operation it can happen. Not normal cruising...boost leak test will more than likely find the culprit....if you had a logger I bet your trims would be maxed out from a false lean condition causing too much fuel to be unburnt in the exhaust and igniting inside the manifold causing it to glow....if left untreated it will hurt the turbo.

 

[turboback]

now i have heard of unburnt fuel being thrown into the manifold but isnt that when your timing is messed up? what if my fuel pump is messed up or my fuel pressure is low will that do it too? and also since this has been happenin g my freaking manifold is cracking too. thanks for the quick reply

 

[91tizzy]

yes timing can cause it too or lackthereof....bet its a boost leak....fpr being weak can also do it but do the blt (boost leak test) asap

 

[turboback]

yeah i will blt it now i have one made already...i will do that and let you know.

 

[turboback]

i blt'ed it and i did have a leak from my bov...then my tester took a dump so i cant find any others now i did go through and retightened my ic clamps i have t-bolt clamps so i shouldnt have any leaks on the pipes themselves. any other ideas. if its my timing i have to wait because i dont have dsm link yet and it is electronic to time it. hopefully it is a stupid problem

 

[oVaBoost]

hello everyone unsure where to post this so ill give it a try here. i have couple questions. i own a 91 laser rs fwd automatic i been having issues my exhaust manifold glowing red along with the turbine housing and cant figure the issue out. im guessing im running lean and need more fuel or some type of tune and i dont not have a wideband the manifold only glows at highway speeds 50-55+mph at 2600-2700 rpm automatic and dont get into boost and i do go up and down hills highway here in iowa seem pretty hilly boost is set at 15psi and hits fuel cut. when i drive intown manifold never glows at all even getting on it doing a hard pull so kinda lost all help will be awesome thanks..
mods
1g maf
2g ported mmanifold
272 comp cams w/ springs on stock ported head
fmic w/ tial bov

greedy 18g w/ 38mm wastegate on o2 housing (im running a 6cm turbine off a 14b would this cause a issue as well should i be running a 7cm housing)?

full 3in exhaust no cats
255 walbro rewired
areomotive fpr set to 43psi
stock 450s
stock ecu
boost leak test been done and fixed all leaks
base timing is set 5* along with the biss screw adjustment
timing belt and marks dead on

 

[DSM1G90]

450's were for the manual Laser only, yet you show you're an Automatic? Did you switch out trannies in that 1Ga? 1990-1991 DSM turbo 1GA's were manual only, and didn't do the Automatic option until the following (1992) year for the Laser.

Injectors are too small since you're running stock 450's and a stock ECU against all of them mods done (esp, the cams with more lift), making the thing run on the very lean side and being lean will run on the hot side ... why you are glowing.

Bet if you put an exhaust manifold temp sending unit on the manifold, I bet the needle will be off the gauge due to being way too hot from running very lean. Getting the mixture close to what it should be will cool down the manifold and eliminate the glowing.

Need to mod up the ECU to handle larger injectors so your A/F ratio can be more balanced-to work with your larger cams and added mods.

-DSM

 

[oVaBoost]

450's were for the manual Laser only, yet you show you're an Automatic? Did you switch out trannies in that 1Ga? 1990-1991 DSM turbo 1GA's were manual only, and didn't do the Automatic option until the following (1992) year for the Laser.

Injectors are too small since you're running stock 450's and a stock ECU against all of them mods done (esp, the cams with more lift), making the thing run on the very lean side and being lean will run on the hot side ... why you are glowing.

Bet if you put an exhaust manifold temp sending unit on the manifold, I bet the needle will be off the gauge due to being way too hot from running very lean. Getting the mixture close to what it should be will cool down the manifold and eliminate the glowing.

Need to mod up the ECU to handle larger injectors so your A/F ratio can be more balanced-to work with your larger cams and added mods.

-DSM

i have a manual ecu and manuel injectors but the car was made an auto i bought it that way 91 was when they put the auto in dsms i do believe i figure in a way i was on the lean side. i have good oil pressure and does not over heat

 

[casperfast]

Agreeg. Mine will glow a little thats only visible at night after a long/ hard drive.

 

[oVaBoost]

Agreeg. Mine will glow a little thats only visible at night after a long/ hard drive.

you agree with dsm1g90?

 

[undefined0000]

He's right.

 

[DSM1G90]

(Should have added .. and thx ..) At least, do an engine management attachment and shove in 550's and larger injectors to work with those larger cams...and that "Wally 255...."

Having good oil pressure and no overheating is good to have ... just the exhaust temp is extremely high due to a very lean A/F mixture - just need to 'rich' things up some to get you were you belong.

Someone on here can help you get the proper setup that you need due to your larger cams so you can get that A/F ratio close to the 14.7:1 ratio for best performance and effective power.

I can't offer the help since I'm bone stock and have no interest (thus, no knowledge) in any forms of mods being .. esp where I'm planning on restoring my Laser and want to keep it in stock form being that I'm an early 1989 build.

Good luck as always - DSM