i need air my egts are way to high for just drivin around i know a new turbo will help along with cold air intake and bigger exhaust and so forth. i have the stock downpipe to 4 inch to 5 inch stack along with a cheese graded air box.
what i am tryin to figure out is what would be best to add, i dont have the money for a turbo right now so could anyone point me in the direction to lower my egts. which would lower them the most, bigger down pipe or cold air intake or intake horn?

 

Where are your EGT's at? Pyro pre or post turbo?

Zero Plate? Maybe back off the fuel and add BHAF for a low buck cure for now. How much boost are you pulling?

 

pre turbo anywhere from 700 to 800* running 60 mph on the highway with 6-7 psi

 

Get rid of your stock downpipe and put your EGT probe pre-turbo for better readings. For a cheap intake, buy a BHAF. I have more fuel than you do and my truck doesn't run hot if I'm just cruising. Towing heavy on the other hand is a different story.

Edit: 700-900 degrees isn't too high. For some reason I read it as post turbo. A little timing like cumminsdriver said and a 4 inch downpipe will bring down your cruising EGTs.

 

Advance your timing to 16* or so. Best EGT reduction you will get for the money. If you cant afford a turbo, thats the best way to go IMO. It made a big difference in my EGT's. I also had a 3k and 0 plate when i bumped my timing. My EGT's went from 1500*+ on a hard WOT run to about 1300* on a hard run.

A downpipe, intake horn, or cold air intake will make a small difference but for $100-150 you can have the timing advanced and get 3x the EGT reduction any of those mods will give you.

Eric

 

BHAF, bump your timing to 16.5, and a 4in DP should help out alot. 700 - 800 isnt really a danger zone for cruzing at 60. I made a heat sheild for a BHAF out of aluminum flashing for about 10 bucks 3 layers on the bottom for structural integrity and rivets holding the sides together using the stock elbow to hook it up.

Make sure your wastegate is all the way closed so you are getting the most out of your turbo. I blocked the wastegate on my hx35 for a good while with no problems, just use the pedal to keep the boost at or below 35psi.

 

Sorry forgot to mention that I am getting the timing done in a week or so it was to suppose to get done this past weekend when I got my tranny put in. I'm getting it bumbed to 16.5, what do you think I'll be runnin heat wise with that timing? And how would I make sure the wastegate is fully closed? Would a boost elbow work?

 

I was running pretty much the same setup as you except for a few differences.

Stock Turbo, 16cm Exhaust housing
3k GSK
#0 plate
homemade 4" exhaust
K&N cone filter

My Egt's were about 1500-1600* with that setup at WOT with the converter unlocked. If i got on it locked in overdrive, EGT's werent bad until RPM got over 2400 or so.

I advanced the timing to 16* and it brought my EGT's down to about 1300* WOT. At the end of the 1/4 mile i was sitting right at 1300*. I ran a 16.2 with that setup with the stock transmission with a transgo shift kit in it.

The timing advance should make a big difference.

Eric

 

a boost elbow tightened down or some epoxy in a stock elbow works as well. I had a boost elbow tightened down because it came with a fuel plate that I ordered when I first got my truck.

 

thanks everyone I appreciate it alot

 

Mine is overheating pretty bad. Engine wise. If you advance too much engine temps will increase. In other words, there is a sweet spot between 17 and 20* I am still trying to find it. Going to a buddies shop here in about an hour to see where I am at right now.
I am at 1250* on EGT's pe-turbo and engine temps get up to 230* when pulling !!!!!!!!!
I pin the stock temp guage, Idiot light, bell ringing and all.
Fixing to get a turbo and want to see where I am at before I do.
I have problems...

 

Crawler is right. My timing is set up pretty high and causes the engine temp to be on the warm side. If I wasn't such a tight wad, I would decrease it.

 

Wow, all the fuel and no wastegate blocking? That would be hot. I would get a boost elbow for sure and get the peak boost up.

 

Sorry I've never really understood what timing and wastegate blocking does, if anyone wants to school me in I am all ears.

 

Timing will move your power curve further up in the rpms and cool egts a little. Blocking the wastegate will give you more boost because a wastegates function is to allow exhaust gases to escape without going through the turbine. This alternate route for exhaust gases lowers boost and prevents spinning the turbo too fast. Plug the gate and keep the boost at or below 35 with 16-17* timing should work fairly well. You just have to use the pedal to control egts and boost with the wastegate blocked. I had mine at that setup for over a year until I built twins. With DDP4 injectors on a stock plugged hx35 you can see 40psi quick fast and in a hurry but stock injectors and a 4kgsk work great.