btfarm
America First!
Lookin' good David! Your Dad did a nice job on the valve covers...:thumbsup:
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88GMCtruck's never ending 88 GMC build thread
- Thread starter 88gmctruck
- Start date
88gmctruck
02GMCtruck
In stock trim they are about 670CFM. After shaving the shafts and installing a spacer for the injector pod, it is in the ballpark of 730-750.
He's a dang good painter for sure. I wouldn't have spent near the time on them with all the other crud i have to do right now.
DieselSlug
Well-Known Member
Wow, that will be a nice setup! Cant wait to hear it fire off!!
88gmctruck
02GMCtruck
On my way. Hoping to hear it run this weekend.
88gmctruck
02GMCtruck
That... was... a... long... weekend. *thuds*
Short story: The motor is in.
Long story (photos): Spent all friday night installing the second head, valve covers, intake, plug wires, etc. Saturday was installing the manifolds, accessories, cleaning the engine bay and rebuilding the 350 wiring harness to work with the 454. Sunday, everything came together. Tonight I got it fired up after dealing with minor fuel and timing adjustments.
And, done.
I've got it running, set the base timing and that is about it. The 3-wire oxygen sensor heats up quickly and the truck goes close loop, thinks it's running lean since as the sensor is RIGHT next to the open manifold. Next step is to find a way to get it to my parents house to get the exhaust welded up.
Short story: The motor is in.
Long story (photos): Spent all friday night installing the second head, valve covers, intake, plug wires, etc. Saturday was installing the manifolds, accessories, cleaning the engine bay and rebuilding the 350 wiring harness to work with the 454. Sunday, everything came together. Tonight I got it fired up after dealing with minor fuel and timing adjustments.
And, done.
I've got it running, set the base timing and that is about it. The 3-wire oxygen sensor heats up quickly and the truck goes close loop, thinks it's running lean since as the sensor is RIGHT next to the open manifold. Next step is to find a way to get it to my parents house to get the exhaust welded up.
NVW
Well-Known Member
Congrats David, that 454 should light the tires.
DieselSlug
Well-Known Member
Very cool!
88gmctruck
02GMCtruck
Last weekend this
Became this.
3" 409 Stainless True Dual exhaust with stainless Magnaflow XL mufflers. Took a day to get it fit together, but it's in. It's loud. Much louder than I expected. It sounds like a musclecar... definitely a big block rumble. It is quieter in the cab though. I think my neighbors might not like it much, particularly at 5AM.
I've also gotten the data logging up and running using winALDL and am working on getting it tuned. As of now it's running rich at idle and lean at WOT. It also idles WAY too high but that should be fixed soon.
And yes, that is a tail under my bumper.
Became this.
3" 409 Stainless True Dual exhaust with stainless Magnaflow XL mufflers. Took a day to get it fit together, but it's in. It's loud. Much louder than I expected. It sounds like a musclecar... definitely a big block rumble. It is quieter in the cab though. I think my neighbors might not like it much, particularly at 5AM.
I've also gotten the data logging up and running using winALDL and am working on getting it tuned. As of now it's running rich at idle and lean at WOT. It also idles WAY too high but that should be fixed soon.
And yes, that is a tail under my bumper.
83GMCK2500
Active Member
Damn I can't wait to see/hear/light it up in person. I've only seen/heard a video so far and it is freakin' awesome.
3500GMC
What T F, over
Pretty much all the rest of us only get to see the pics and vids .. 
which are cool and all, but that's one unique truck and deserves to be 'seen' ..
Looking GOOD.
which are cool and all, but that's one unique truck and deserves to be 'seen' .. Looking GOOD.
88gmctruck
02GMCtruck
FWIW Matty beat everyone and he's driven it
You'll get your turn though.Yeah it's one thing to see/hear on the PC.Pretty much all the rest of us only get to see the pics and vids ..
Looking GOOD.
Alrighty, here is an idle video. Once I get more tuning done i'll have to get another video together.
- Staff
- #92
Sounds bad ass! :thumbsup:
Pepperidge
Member Advocate
very loud...sounds great
but I'm feeling too old for that kind of noise for me these days...
but I'm feeling too old for that kind of noise for me these days...
88gmctruck
02GMCtruck
Honestly, I thought the magnaflow mufflers would be much quieter... I was wrong. The set on my 02 are nice a mellow.
They might get switched out eventually.
They might get switched out eventually.
Suburbank2500
New Member
Nice sound, and very nice truck.
Is the Impreza also yours, is it a WRX / STI.
i work at a Subaru dealer, they are fun to drive...
Is the Impreza also yours, is it a WRX / STI.
i work at a Subaru dealer, they are fun to drive...
88gmctruck
02GMCtruck
Not mine, although I do get to drive it occasionally. It's a 2005 sti.
btfarm
America First!
Nice lope! :thumbsup: But yeah, kinda loud for Magnaflows.
3500GMC
What T F, over
If it's too loud you're too old.
:hello::rof::rofl:
:hello::rof::rofl:
btfarm
America First!
88gmctruck
02GMCtruck
Not a ton of news surrounding the truck. Been mostly fine tuning things and working on the trailer project. I was having an odd intermittent idle issue, after a bunch of adjusting and checking, I ended up replacing the Idle Air Control Valve, and after the most recent datalog and chip it's really getting dialed in.
I FINALLY got airbag installed on the truck. I've had them (they were on here long ago and were on the 99 diesel as well) and just hadn't got around to building something that I could use with the truck. So i don't rip them up I made a removable "leg" so to speak that makes up the space between the axle due to the lift, and will allow them to be disconnected when i'm not towing the trailer.
Excuse the lack of paint, I haven't gotten around to spraying some on it yet.
I also finally got a new spare for the truck too, just a stock steel wheel and a worn out 315/75r16 bfg a/t
I FINALLY got airbag installed on the truck. I've had them (they were on here long ago and were on the 99 diesel as well) and just hadn't got around to building something that I could use with the truck. So i don't rip them up I made a removable "leg" so to speak that makes up the space between the axle due to the lift, and will allow them to be disconnected when i'm not towing the trailer.
Excuse the lack of paint, I haven't gotten around to spraying some on it yet.
I also finally got a new spare for the truck too, just a stock steel wheel and a worn out 315/75r16 bfg a/t