There's also the question of turbo lag. The farther away the turbo is, the farther the air has to travel. I would think that with an exhaust mounted turbo your acceleration would be worse than stock when you hit the gas and then kick in late with a burst of power.
turbo build
- Thread starter Dusty
- Start date
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The closer a turbo is to the exhaust gas source the faster it will spool..... (within reason)... however once it spools up it doesn't really matter.
There is a twin turbo STS rear mount kit on an LS1 C5 Vette that runs consistent low 9's@155mph. It just eats transaxles every 10-20 passes ($$$$). The STS system certainly works even if they aren't the most efficient design.
With the amount of room in the "80" engine bay to not put it in there would be rather stupid.
Dusty- When are you going to dyno that truck and see if it is running lean up top?
Have you had any hiccups with the setup thus far? I assume you aren't revving it past 4K RPM?
There is a twin turbo STS rear mount kit on an LS1 C5 Vette that runs consistent low 9's@155mph. It just eats transaxles every 10-20 passes ($$$$). The STS system certainly works even if they aren't the most efficient design.
With the amount of room in the "80" engine bay to not put it in there would be rather stupid.
Dusty- When are you going to dyno that truck and see if it is running lean up top?
Have you had any hiccups with the setup thus far? I assume you aren't revving it past 4K RPM?
Dusty said:
Dusty, I agree with your points as well. Makes sense on a low boost application even though your overall efficiency will be lower. STS kits do work well from what I have read but I can't see me having the turbo under the truck.
- Thread starter
- #164
GNX7
once I make a decision (and have time)on fuel management I will get a dyno to tune.
But the turbo has been flawless. No problems at all. I have been running into the mid 4000rpms and the cheap narrow band a/f meter reads rich when I do. EGTs dont spike durring these revs
once I make a decision (and have time)on fuel management I will get a dyno to tune.
But the turbo has been flawless. No problems at all. I have been running into the mid 4000rpms and the cheap narrow band a/f meter reads rich when I do. EGTs dont spike durring these revs
Dusty, wonder if you've got $300 of your life into your home-brewed manifold 
http://cgi.ebay.com/ebaymotors/Toyo...tegoryZ33742QQihZ008QQitemZ180029642079QQrdZ1
http://cgi.ebay.com/ebaymotors/Toyo...tegoryZ33742QQihZ008QQitemZ180029642079QQrdZ1
semlin
curmudgeon
whoa, that is very interesting. The cost of a booty fabbed home turbo just dropped considerably
WOW, that is cheap. Quality looks fair to. Noticed the expansion gaps between each to sets of runners and it is cast. This manifold would be great for a low boost setup.
=NCG=Blind Man said:
except for one thing - the STS rear mount turbos are small - smaller than you would run mounted at the engine & are in the boost at a very low rpm
- Thread starter
- #169
I just got a new bearing housing fo my turbo. The new housing will allow for water lines. Until now my turbo has only the oil to cool it. if you look at this pic
http://www.yomama.net/Safari Turbo/Turbo Install Pictures/tstatfittingWeb.jpg
of the safari turbo you see that the water from turbo returns at the same point as the heater return. does anyone know if this is anything more than a tee or does this have some sort of one-way vave?
I would love to put a cheap tee in the heater return which on my turbo is no longer a hard line but is a simple 5/8 hose
http://www.yomama.net/Safari Turbo/Turbo Install Pictures/tstatfittingWeb.jpg
of the safari turbo you see that the water from turbo returns at the same point as the heater return. does anyone know if this is anything more than a tee or does this have some sort of one-way vave?
I would love to put a cheap tee in the heater return which on my turbo is no longer a hard line but is a simple 5/8 hose
Yep Dusty, that's all that it is - no valve or anything. The other coolant line is the one tapped into the boss on the elbow just in front of the #1 intake runner.
Safari Turbo
Hi Dusty,
The link seems to be down do you have any picture you can post with the oil and water line´s in and out´s
Hi Dusty,
The link seems to be down do you have any picture you can post with the oil and water line´s in and out´s
- Thread starter
- #173
https://forum.ih8mud.com/showthread.php?t=130619&highlight=water
there you go. my water lines have held up great without leaks.
there you go. my water lines have held up great without leaks.
Yup, If your looking for a cast manifold the original ebay seller is no longer selling them. Try the for sale section or pm me. I have one very slightly damaged I will let go real cheap.
- Thread starter
- #176
thanks cattledog for the manifold.
My home made manifold cracked and I dont want this to become a theme so I am using the same cast job msgrunt is using.
But am planning 10lbs boost so I made a few upgrades that probably are not needed. I replaced HG (which was perfect) and got a nice 3 angle valve job with new valve seals and a shaved deck. (just 4 thousandths) While I had the head apart I did a quick and dirty porting to clean up the casting remnants (see pic)
Got a new bosch BOV
Started tearing up the old downpipe tonite but had to stop due to noise ordanance.
Will dyno this time
My home made manifold cracked and I dont want this to become a theme so I am using the same cast job msgrunt is using.
But am planning 10lbs boost so I made a few upgrades that probably are not needed. I replaced HG (which was perfect) and got a nice 3 angle valve job with new valve seals and a shaved deck. (just 4 thousandths) While I had the head apart I did a quick and dirty porting to clean up the casting remnants (see pic)
Got a new bosch BOV
Started tearing up the old downpipe tonite but had to stop due to noise ordanance.
Will dyno this time
Any plans to install a wideband? I've got an Innovate LC-1 on my VW turbo project, and it's been absolutely invaluable for tuning. This is a very reasonably priced wideband controller as well: http://www.14point7.com/JAW/JAW.htm
Interesting site. Great price for what you get.
