How to boost for 500$ **Redneck style**
12-03-2014, 12:38 AM
#42
Junior Member
Thread Starter
Join Date: Nov 2014
Posts: 58
Total Cats: 17
Actually no, I re-oriented my AFM tonight because I didn't know that it was important. Might be part of the hesitation I felt when releasing the throttle. I will test drive tomorrow, in half a foot of snow lol Thanks Leafy for the info!
Reply
2
2
12-04-2014, 04:14 AM
#46
Elite Member
Join Date: Apr 2010
Location: Newcastle, Australia
Posts: 2,826
Total Cats: 67
In all seriousness, however, congrats. You've recaptured some of the original cheap-*** spirit that MiataTurbo was founded upon way back before we all became wealthy turbo barons and MegaSquirt snobs.
One aspect of the project does concern me:
Placing an intercooler behind the radiator like that basically turns it into an interheater. In other words, all that warm air flowing into it from the radiator is going to pre-heat it, and thereby reduce or even eliminate its ability to remove heat from the intake air under boost.
If you can relocate the intercooler to a spot in front of the radiator, that would improve its performance considerably. Failing that, if it were my car I'd be tempted to remove it entirely, albeit after instrumenting the "before" and "after" pipes with some fast thermocouples just to see if it's doing anything beneficial at all.
One aspect of the project does concern me:
Placing an intercooler behind the radiator like that basically turns it into an interheater. In other words, all that warm air flowing into it from the radiator is going to pre-heat it, and thereby reduce or even eliminate its ability to remove heat from the intake air under boost.
If you can relocate the intercooler to a spot in front of the radiator, that would improve its performance considerably. Failing that, if it were my car I'd be tempted to remove it entirely, albeit after instrumenting the "before" and "after" pipes with some fast thermocouples just to see if it's doing anything beneficial at all.
Reply
0
0
12-04-2014, 10:51 AM
#48
Honestly, it will - be it minimally - and just marginally better than non intercooled... but it will. Considering the investment, and the grassroots/lemons application - I'd say it's better than nothing. I'd be more worried about the turbo waterlines lol
This threads pretty entertaining.
edit: oh I guess those are vacuum lines, nvm.
This threads pretty entertaining.
edit: oh I guess those are vacuum lines, nvm.
Reply
0
0
12-04-2014, 05:44 PM
#51
Boost Pope
iTrader: (8)
Join Date: Sep 2005
Location: Chicago. (The less-murder part.)
Posts: 33,031
Total Cats: 6,596
I can't quite see what these two things would have in common. In particular, I've heard it said by numerous sources (some of them reputable) that one of the most crucial functions of the water jacket occurs after the engine is shut off, with the combination of convective circulation and localized boiling of the coolant serving to draw heat away from the bearing assembly and prevent coking of the now-stagnant oil which remains there.
Reply
0
0
12-05-2014, 09:59 AM
#56
Junior Member
Join Date: Jun 2014
Location: Baton Rouge, Louisiana
Posts: 91
Total Cats: 1
No I believe it runs, I'm excited to see how it performs. It's actually a little disappointing how I spent 3 times as much as you for a begi kit 3 months ago and still don't have all my parts. I should have gone diy
Reply
1
1
12-05-2014, 10:32 AM
#57
Junior Member
Thread Starter
Join Date: Nov 2014
Posts: 58
Total Cats: 17
What are you missing? Can you temporairely fit something yourself while waiting so you can enjoy your ride before? I guess you are waiting to complete it properly sonyou can tune it only once.
Reply
0
0
12-05-2014, 11:01 AM
#58
Junior Member
Join Date: Jun 2014
Location: Baton Rouge, Louisiana
Posts: 91
Total Cats: 1
im missing the oil drain flange for the bottom of the turbo, couple of hoses and an air filter. The only thing holding me back is the drain flange because I cant find em local anywhere. If I buy a KIT, I expect it to have EVERYTHING I need to install at one time, that would be why I didn't do diy. Im curious to see how that manifold holds up lol
Reply
0
0
12-07-2014, 02:20 AM
#59
Junior Member
Thread Starter
Join Date: Nov 2014
Posts: 58
Total Cats: 17
im missing the oil drain flange for the bottom of the turbo, couple of hoses and an air filter. The only thing holding me back is the drain flange because I cant find em local anywhere. If I buy a KIT, I expect it to have EVERYTHING I need to install at one time, that would be why I didn't do diy. Im curious to see how that manifold holds up lol
On my side, I fixed the hesitation problem: The voodoo box was plugged on a nipple I installed on the piping in between the intercooler and the throttle body. That was wrong. I plugged it today on the same nipple than my boost gauge (on the manifold side so where there is also vaccum) and its works great! No more hesitation, it's a big difference. Since I don't have any blow off, I guess some extra full was delivered each time I release the throttle (because of the turbo that keeps spooling and the butterfly of the throttle body closed) so the voodoo box saw some boost.
It's keep improving
Tomorrow video!!
Reply
1
1
12-08-2014, 02:41 PM
#60
Junior Member
Thread Starter
Join Date: Nov 2014
Posts: 58
Total Cats: 17
Here's a quick video, not the best. Because I dont have wifi here I can't upload it in HD. I'll try to record a better one soon!
Last edited by Joe Perez; 12-08-2014 at 03:04 PM. Reason: Fixed YouTube embed
Reply
2
2
