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Upgrading to 6 bolts now seems like the better way to go in my opinion. Less stuff to worry about failing.
Originally Posted by thompson
Awesome build. Thank you for letting us be a part of this!!!
I'll probably give ya a call sometime this week to discuss heads and a few other dumb things that i dont feel like waiting for engine to get here to figure out.
Originally Posted by gnx7
you are a madman! Can't wait to see this run....
keep saying i'm almost done with this thing, but theres always just a few more things to do before its finished
and yea, you and me both.. hoping to have it back together before the cooler weather comes back
welllll back to it... after a failed attempt at shipping engine #1 it had to be sent back to thompson. zero hassle on my end they started building another engine and it safely arrived a couple weeks later.
i mocked up a few things on the stand threw it in, trying to get it fired up in the next few days.
also had thompson throw on a set of frankenstein/monster ls3 heads
bunch of pics in no particular order.
last pic....
prior to this i had the stock fuel system line running as it was to up under the hood. 2nd pump fed the fuel rails in the back of passenger side, cross over in the front, out the back of the driver side to the regulator.
and i had the stock fuel line connected directly to the top side of the regulator (with flex fuel sensor in line) - i knew this wasnt ideal but i didnt intend for this to get out of hand. both had check valves on them. the fuel pressure sensor was on the stock line.
regulator was mechanically set to 60psi, stock fuel pump would never crack it in low demand or high demand. the second fuel pump (magnafuel 4303) is on a hobbs switch @3psi. I had some trouble with it stumbling when the second pump would come in - i think this had something to do with the pressure sensor on the stock line, when big pump would come on it would over power the stock (shutting check valve) and leaving ecm not knowing what pressure it was at.
Y-block has stock line in (-6an), magnafuel line in (-10an), and -10an out to fuel rails. stock line was cut and flared to connect to the flex fuel sensor, check valve. and the fuel pressure sensor is mounted to the block.
got side tracked with converter issue, stopped pumping fluid through transmission and ate up the pump, spit aluminum throughout the whole thing. ordered a new converter and sent the trans to get cleaned up, they also replaced planetaries with some billet ones while it was there?
in the mean time i picked up a np149 transfer case, a la silverado ss with viscous coupler, rebuilt it and am waiting for the correct input adapter to throw it all back together. the awd transfer case i have now (bw4485) acts like an open so it just wants to spin the front when weight transfers, the np149 should help out a lot
got it all back together (with the BW transfer case) still have a bit of tuning to do but wanted to see what it would trap....i didnt have the boost reference hooked up to the regulator, which i need to do, idc% was up there. but ultimately i just need some larger injectors. was only running about 13psi and turbo held it but was just making heat i think lol
1st slip left lane left on zero boost at idle , 2nd slip right lane left on 4 or 5 lbs maybe
plan at this point is to boost reference the regulator and/or bump the base pressure, clean up the tune and it should "safely" run a 10. I'll grab some 2200cc injectors and probably a VSR 92/110 or s491 if I can find a cheap one
update:
not sure how much of this was explained but had a converter fail, sent a bunch of trash through the transmission while also chewing up the thrust bearing. had to get them both cleaned up/rebuilt, new converter with mech diode, triple disc, anti balloon plates, etc . the S480 was a bit to small for 427ci. has some probs with it chucking belts at high rpm, trying to keep some sort of pcv system.
kinda bored while all that was going on, i scraped all the gm frame wax crap off from the cab forward and painted the frame, swapped out all the front suspension stuff to the newer aluminum pieces - upper/lower arms and spindles.
grabbed a vsracing 92/110 to replace the s480/96
417 motorsports water manifold, meziere pump, aluminum radiator with some bungs welded to it (20an to pump, 16an to/from engine) tried to be cute and keep the cabin heater lines but am currently having some cooling issues so i took them out of the loop.
rebuilt and swapped in a np149 (viscous coupling) awd transfer case, swapped input shaft to mate it to the 4l80, new rear chromoly driveshaft from PST.
ditched the engine driven power steering pump for the volvo electric one, running hydroboost and steering. seems to be a little weak on some low speed parking lot maneuvering - prob going to try and feed both of them from the pump rather than pump to hydroboost then to steering rack to see if that helps.
i did find a stretch belt that would fit with the alternator low mounted but still had problems throwing it, replaced the balancer with an ATI super damper same problems... i used the tensioner as just an idler pulley for the most part and has been good since then.
ordered the driveshaft, wrong slip yoke for a transfercase ... i threw the stock on onto the pst shaft and ordered the chomoly one havent had it back out to swap it yet tho
suspension - kind of petty, but they kept sending me left and right arms that didnt match. different cast, different balljoint. went thru a couple sets before i ordered different ones all together
throwin the belts, the electric pump for brakes/steering worked great! and electric water pump kept on rollin. belt wrapped up around balancer tore up the front seal a little, while pulling it i grabbed a little deep and chipped the housing. oem balancer looked like it was getting beat pretty bad dont know if that had anything to do with it
08-25-2019 | 09:09 PM
