Turbo 3800 blazer
- Thread starter BMFB
- Start date
warmpancakes
New member
Re: Turbo 3800 blazer
back when sex was safe and racing was dangerous
That's cool. I like it. Willy Borsch, r.i.p., could have used that as a trainer for his AA/FA back in the day. The squrilliness in the field reminded me of a Fuel Altered. Thanks for sharing.
back when sex was safe and racing was dangerous
SY2455
70's Veteran
Re: Turbo 3800 blazer
My wife came in while I was watching this video and said after sitting though the last 2 min of the video. The difference between men and boys are the price of their toys :rotf:.
My wife came in while I was watching this video and said after sitting though the last 2 min of the video. The difference between men and boys are the price of their toys :rotf:.
BMFB
Not to scale
Re: Turbo 3800 blazer
there more people looking at this than I thought. that tractor has some torque lol.
So progress has slowed a bit over the last few weeks.
After dumping a gallon of water into the coolant through a maimed front cover gasket I noticed that the motor had became a bit noisier than before. Not running a pcv valve didn't seem to be helping..and the noise continued to get worse. Then I started throwing 20 psi at it and although it was making a ton of power, the noise started to get louder at a more rapid pace. Eventually that noise expressed itself as a bad rod bearing that let go during a highway run. Catastrophic failure would be a good way to describe it.
I wasnt all that sad about that motor. I had learned alot with it and in the process beat it to ****ing death. 90* advanced timing, -5 degrees timing, not having a working pcv system and cheaping out on a front cover seal had all lead to the death of that motor. With all of that in mind I have set out to not do that again.
fun listing of failures
cracked #5 piston (believe it happened after the -5* timing week, noted that it has gained some blow by, now I know why)
#4 rod broken in half
#4 exhaust valve bent
#4 pistion distorted from hitting head
#4 exhaust lifter destroyed
head gasket around #4 distorted from heat generated form spraying fuel into a dead cylinder
all exhuast valve seats melted (likely from the timing issues, 90* advanced and -5 *advanced makes bad things happen to exhuast seats)
camshaft taco'd (rod went through the block into the camshaft area and bent it)
camshaft keyway destroyed, leading to it loosing cam timing
all pistons had a cool notch in them from hitting the intake valves.
This motor did not seize, it was still running somehow. I had to shut it off.
I managed to get some pitty head work done on a new set for 100 bucks, I got a good deal on new cometic head gaskets for 75 bucks, and got a cam for 300. with these parts I was able to build up another motor that a friend gave me. Unfortunelty this motor was a gamble, as he had pulled it out of a gtp that was said to be good but not confirmed. we got the motor in and it had good oil pressure at cold start, but once it got hot it lost all but 20psi and we decided to junk it.
a week later RPM in flint had a L67 block sale and we picked up an 03 block out of a gtp that had caught on fire for $150 and we assembled that this last weekend. I started putting it in the truck and its almost ready to fire. With a couple of hours of work tonight I'll see what this motor looks like. If it doest work I'll be pretty let down, but we now have a few extras laying around so at least it won't be a hunt.
I made at least 550 whp on 20psi. I was limited to that pressure by my Lt1 stlye MAF only being able to barely understand that. Fromw hat I have seen these motors are capible of more, I just need to learn from the mistakes I made the first time.
there more people looking at this than I thought. that tractor has some torque lol.
So progress has slowed a bit over the last few weeks.
After dumping a gallon of water into the coolant through a maimed front cover gasket I noticed that the motor had became a bit noisier than before. Not running a pcv valve didn't seem to be helping..and the noise continued to get worse. Then I started throwing 20 psi at it and although it was making a ton of power, the noise started to get louder at a more rapid pace. Eventually that noise expressed itself as a bad rod bearing that let go during a highway run. Catastrophic failure would be a good way to describe it.
I wasnt all that sad about that motor. I had learned alot with it and in the process beat it to ****ing death. 90* advanced timing, -5 degrees timing, not having a working pcv system and cheaping out on a front cover seal had all lead to the death of that motor. With all of that in mind I have set out to not do that again.
fun listing of failures
cracked #5 piston (believe it happened after the -5* timing week, noted that it has gained some blow by, now I know why)
#4 rod broken in half
#4 exhaust valve bent
#4 pistion distorted from hitting head
#4 exhaust lifter destroyed
head gasket around #4 distorted from heat generated form spraying fuel into a dead cylinder
all exhuast valve seats melted (likely from the timing issues, 90* advanced and -5 *advanced makes bad things happen to exhuast seats)
camshaft taco'd (rod went through the block into the camshaft area and bent it)
camshaft keyway destroyed, leading to it loosing cam timing
all pistons had a cool notch in them from hitting the intake valves.
This motor did not seize, it was still running somehow. I had to shut it off.
I managed to get some pitty head work done on a new set for 100 bucks, I got a good deal on new cometic head gaskets for 75 bucks, and got a cam for 300. with these parts I was able to build up another motor that a friend gave me. Unfortunelty this motor was a gamble, as he had pulled it out of a gtp that was said to be good but not confirmed. we got the motor in and it had good oil pressure at cold start, but once it got hot it lost all but 20psi and we decided to junk it.
a week later RPM in flint had a L67 block sale and we picked up an 03 block out of a gtp that had caught on fire for $150 and we assembled that this last weekend. I started putting it in the truck and its almost ready to fire. With a couple of hours of work tonight I'll see what this motor looks like. If it doest work I'll be pretty let down, but we now have a few extras laying around so at least it won't be a hunt.
I made at least 550 whp on 20psi. I was limited to that pressure by my Lt1 stlye MAF only being able to barely understand that. Fromw hat I have seen these motors are capible of more, I just need to learn from the mistakes I made the first time.
warmpancakes
New member
Re: Turbo 3800 blazer
where the pick of the new exhaust?
where the pick of the new exhaust?
BMFB
Not to scale
Re: Turbo 3800 blazer
I haven't gotten that far yet unfortunelty. I'm going to see what I can do to get it together this weekend or next, although after its running again and confirmed not ruined heat will be ahead of everything else on the priority list. I am hoping to rig that up with a core, small fan I found, and some flexible pool hose I found. Also zip ties...
I haven't gotten that far yet unfortunelty. I'm going to see what I can do to get it together this weekend or next, although after its running again and confirmed not ruined heat will be ahead of everything else on the priority list. I am hoping to rig that up with a core, small fan I found, and some flexible pool hose I found. Also zip ties...
warmpancakes
New member
Re: Turbo 3800 blazer
dont forget the duct tape, Just a FYI early 90s civics have tiny heater boxes in them , Like the size of a shoebox
dont forget the duct tape, Just a FYI early 90s civics have tiny heater boxes in them , Like the size of a shoebox
BMFB
Not to scale
Re: Turbo 3800 blazer
thats actually what I was aiming for. I saw a buddys CRX heater box and it was one tiny perfect unit with a fan and everything as one small peice.
Also, I did just order a 'raindeer suit' for it, and 60 feet of 12v multi colored led christmas lights that I plan on stringing to the cage for use as interior lighting.
thats actually what I was aiming for. I saw a buddys CRX heater box and it was one tiny perfect unit with a fan and everything as one small peice.
Also, I did just order a 'raindeer suit' for it, and 60 feet of 12v multi colored led christmas lights that I plan on stringing to the cage for use as interior lighting.
warmpancakes
New member
Re: Turbo 3800 blazer
pure class :rotf:
}BMFB;989851. said:
pure class :rotf:
BMFB
Not to scale
Re: Turbo 3800 blazer
the elmer fud thing doest fit quite as well.
I got it running friday, and have been driving it around this weekend. So far so good. I've done a few small improvements, fixed a hole in the floor, ect. Tuesday me and a friend are going to put the exhaust together, and tomorrow I am hoping to get to the junk yards and get a heater setup. The awd didn't help as much as I thought, spins all 4 wheels at 60 on just 12 psi of boost :/ in the rain.
the elmer fud thing doest fit quite as well.
I got it running friday, and have been driving it around this weekend. So far so good. I've done a few small improvements, fixed a hole in the floor, ect. Tuesday me and a friend are going to put the exhaust together, and tomorrow I am hoping to get to the junk yards and get a heater setup. The awd didn't help as much as I thought, spins all 4 wheels at 60 on just 12 psi of boost :/ in the rain.
BMFB
Not to scale
Re: Turbo 3800 blazer
heater installed and seems to be working well. Came out of the back of a conversion van from a local yard for 10 dollars. I used some sump pump flex hose to point it at the windshield for defrost. I decided to run the heater off of the hot side of the turbo cooling lines and it gets warm really quick. pretty happy with how I did it, I'll post some pics later.
heater installed and seems to be working well. Came out of the back of a conversion van from a local yard for 10 dollars. I used some sump pump flex hose to point it at the windshield for defrost. I decided to run the heater off of the hot side of the turbo cooling lines and it gets warm really quick. pretty happy with how I did it, I'll post some pics later.
Last edited:
fivetodrive
CRISPY
Re: Turbo 3800 blazer
The return cooling from the turbo for heat, I never would have thought of that...
The return cooling from the turbo for heat, I never would have thought of that...
BMFB
Not to scale
Re: Turbo 3800 blazer
it works fantastic, warm within 30 seconds
I fought an issue with what turned out to be a pcm. We dont understand why but it wouldn't read a 99+ style maf, but it loved my lt-1 style maf, and it was an 01 pcm. After going through the entire harness, and double checking everything I ended up putting on a 98 style pcm and it seems to work fine. now with the newer maf I can run an afc, and should be able to run alot more air through it alot safer than before. All I have to do now is completely re-tune it. Starting tomorrow...
some pics from the motor rebuild/general
'new' motor
back in
interior lighting
bong
it works fantastic, warm within 30 seconds
I fought an issue with what turned out to be a pcm. We dont understand why but it wouldn't read a 99+ style maf, but it loved my lt-1 style maf, and it was an 01 pcm. After going through the entire harness, and double checking everything I ended up putting on a 98 style pcm and it seems to work fine. now with the newer maf I can run an afc, and should be able to run alot more air through it alot safer than before. All I have to do now is completely re-tune it. Starting tomorrow...
some pics from the motor rebuild/general
'new' motor
back in
interior lighting
bong
CalgarySS
1000 miles and counting..
Re: Turbo 3800 blazer
This picture sums up this entire project! Awesome/unorthodox/touchofcrazy! Keep it up.interior lighting
BMFB
Not to scale
Re: Turbo 3800 blazer
Thanks man. I'm pretty let down that it isnt really getting together until late this year. I was hoping to go out to the track and get at least 1 good day of passes on it. I wonder if they would let me be a 'big gun' with this...its sorta like a typhoon...right?
Thanks man. I'm pretty let down that it isnt really getting together until late this year. I was hoping to go out to the track and get at least 1 good day of passes on it. I wonder if they would let me be a 'big gun' with this...its sorta like a typhoon...right?
BMFB
Not to scale
Re: Turbo 3800 blazer
lets see,
its an s10 blazer chasis, so its the (longer) frame, and rear end
transfercase came out of a typhoon
front propshaft, although altered, was a typhoon shaft
turbo came off of a typhoon from this forum, although its not stock
V6 Gm motor...
front axle is syty in nature
automatic trans...although th400...
In other news I started tuning it. Little rough to start but its becoming decent. I can at least idle the thing and drive it. Needs alot though still, whole maf table is weird now with the translator.
lets see,
its an s10 blazer chasis, so its the (longer) frame, and rear end
transfercase came out of a typhoon
front propshaft, although altered, was a typhoon shaft
turbo came off of a typhoon from this forum, although its not stock
V6 Gm motor...
front axle is syty in nature
automatic trans...although th400...
In other news I started tuning it. Little rough to start but its becoming decent. I can at least idle the thing and drive it. Needs alot though still, whole maf table is weird now with the translator.
BMFB
Not to scale
Re: Turbo 3800 blazer
tuning has been successful...except for cranking...it hates that...working on that one still...everything else is great, loves idle, loaded idle, light accel, heavy accel, normal accel, angry accel, everything is great, except crank...it take 5% throttle to get it to kick, then its happy as a clam...
tuning has been successful...except for cranking...it hates that...working on that one still...everything else is great, loves idle, loaded idle, light accel, heavy accel, normal accel, angry accel, everything is great, except crank...it take 5% throttle to get it to kick, then its happy as a clam...
