VW Vortex - Volkswagen Forum banner
Cancel
Create thread New Garage Forums

1.8T + 50trim = What intake temps?

Jump to Latest
21 - 40 of 58 Posts
Discussion starter · #22 ·
Well, if you were able to do 363whp with that little IC, mine should be ok. So other than the make, everything should work as expected.
I'll have to see if now with the changes to the bumper, it's a bit better. I believe it will improve some.

Thezookeeper, it's painted, but just with a tiny bit of paint. I don't think that will make it raise like it is.
 
#24 ·
HidRo said:
Well, if you were able to do 363whp with that little IC, mine should be ok. So other than the make, everything should work as expected.
I'll have to see if now with the changes to the bumper, it's a bit better. I believe it will improve some.
Click to expand...
Definitively. A lil here and there will help. Worst case scenario, a better core will do.
 
Save
Reply Quote Like Like
#26 ·
IAT spikes with ebay ICs has been tested over and over though. In one of the pics you can see through some of the turbolators which seems to show that thing is not dense at all.

Flash client has locked me out so I gotta reupdate a new download - Thank you Chris Tapp!

Anyone find a better solution to this lock out stuff? Surely there's a folder or file I can edit to keep this from happening. This laptop is old and I don't keep it connected to the internet, but it forces me to reupdate the files if it's not online every 30 days or so. It's really, really annoying.
 
Discussion starter · #27 ·
Yesterday, I went for a slow drive, to test a change to the water system. One thing I noticied is that when I stopped the car, the cold side piping is really cold but the intake manifold was kind of hot (could touch, but I'm assuming over 40C (100F)).
I'm guessing you guys have the intake temp sensor in the default location as well, correct? From what I've been reading, IAT sensor in the cold side will not show heat soak, as it will correctly register the temp the air is going by.
 
Discussion starter · #30 · (Edited)
I also have the sensor in the stock location.

screwball, thanks man! I'll be waiting for your input on this.
Also, could a bad timing map cause the temps to go skyhigh?
At 1.35bar, 19.58lbs, it was doing 13Âş of timing. For stock compression, stock everything except rods, that isn't too low nor high, is it?
 
#31 ·
HidRo said:
At 1.35bar, 19.58lbs, it was doing 13Âş of timing. For stock compression, stock everything except rods, that isn't too low nor high, is it?
Click to expand...
13* up top? That's on the low side. I would like to see around 16-19*
 
Save
Reply Quote Like Like
Discussion starter · #32 ·
Well, I'm doing the tune on this bastard :D So, I'm taking babysteps.
I saw a guy tuning in ME7 and at 1.4 bar, 20 psi, he had 18Âş up there.
But, as I'm not that sure on what I can use safely, as I don't have knock detection system (I did make a det can, but to use on the road, tuning everything myself, is a bit overkill :D) I don't want to bump it up much without having sure it will not blow up :D

But, from the math done, from the timing at 100kpa from a stock map and everything, it does seem I can go that high. Will have to test that on a dyno, somewhat in the near future.
 
#33 ·
Yeah...16-19* is safe. Once u pass around mid 20s* u want to make sure u r ok or at least have water/meth.
 
Save
Reply Quote Like Like
#37 ·
It sounds like the perfect candidate for water injection. It would, not only pick up the slacks from the IC inneficiency, but also offer some cheap insurance against knock if some of the chemical cooling is done in-cylinder (post-TB nozzles or direct port injection).
 
Discussion starter · #39 · (Edited)
Went out for a spin again today. Cooler day, 20C driving, instead of 28C last time.
did a 3rd gear run to 6800RPM, and lower boost. So, this time, 0.8bar 11.5psi was the maximum I saw, and it raised 10C (before it was 20C, but could be due to the colder weather), difference now being the bumper openings and lower boost. Will have to test in higher boost as well again.
At this level of boost, I was doing 22Âş of timing. Too much?
Is this better? Or still too much?
 
#40 ·
The lower the boost, the less heat the compressor will generate when compressing the air. So the cooler day is of minimal consequence comapred to how much boost you are pushing.

As suggested, a better IC core will help or run a WM setup. I know on my setup, I run a smaller core (didn't want to cut into the rebar on a mkiv), it doesn't cool as well as it should, but WM more than makes up for that.
 
21 - 40 of 58 Posts
About this Discussion
57 Replies
13 Participants
Last post:
HidRo
VW Vortex - Volkswagen Forum
posts
85M
members
1.5M
Since
2001
A forum community dedicated to all Volkswagen owners and enthusiasts. Come join the discussion about performance, builds, modifications, classifieds, troubleshooting, maintenance, new releases, and more!
Full Forum Listing
Explore Our Forums
The Car Lounge Golf IV & Jetta IV Golf III & Jetta III Golf II & Jetta II Golf IV/Jetta IV Parts