jtaliaferro

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Ok here we go.


Removing the engine from the OBS SWB, which was a swapped 5.3 th400.









The 383 just before removal





Sizing up the 5.3 for its new home.



Turbo parts



[IMG]https://lh4.googleusercontent.com/HtUXNgMV1cfxOqpCeBEzD7LeEakr_ugVzHCSvqxyFnk=w274-h205-p-no[/IMG

jtaliaferro

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90camaro355rs

am I missing something, are you doing to projects at the same time?

Formula_Fire

Looks like he had the 5.3 in a old C series pickup pulled it and then pulled the engine that was in his F-body dropped it in there and is making a turbo setup. Be easier to understand if there was notations with the pictures though.

jtaliaferro

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Kyle86

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Like the swap with the truck intake. Are you using the f-body pan? Check out my thread someime, I've got a 86 too with 4.8 and gt45. Anyways cool we got similar setups, can't wait to see how yours performs keep updated!

jtaliaferro

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Yeah im using a fbody pan.

jtaliaferro

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FYI I have looked over your build thread several times... Good results on your build!!!!

no green

Nice job on that.

are those 5.3 truck manifolds? mind putting up some more pictures around the drivers side?

jtaliaferro

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They are 6.0l manifolds with no provisions for EGR. I will post some pics tonight of the drivers side.

jtaliaferro

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no green

Thanks! That would be great.

jtaliaferro

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Don't mind the hack job on the wiring, it was a broken ground discovered after harness was installed.

jtaliaferro

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Craptastic video of it building a bit of boost, rolling in till about half throttle.


I have now cleaned some wiring up and changed wastegate springs, now building about 13psi. Hope to have track times this Friday. For me it's always hard to judge how car will run once you reach a certain threshold, but it feels really strong.

jtaliaferro

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DuP

no green

Thanks for the pictures.

Good luck Friday, keep us posted.

jtaliaferro

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Well I was hoping for a little better run but considering not building boost through first due to gears and running fat with low timing 11 psi boost. Left lane 12.8 109 mph

jtaliaferro

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Kyle86

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Congrats on the straight pass. I think you are well below where you should be. Most likely not boosting in low gears is where you're loosing your speed as it obviously picks up towards the end. I say let it eat! I think this car has a 10 sec pass in it if you can leave on boost.

jtaliaferro

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Yeah I have installed some 3.50 gears so im ready for this Fridays TNT.

jtaliaferro

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Headed to the track, I will update times this evening.

jtaliaferro

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Well doing better 11.9 117mph. I forgot my computer so I could not make any adjustments to the tune, AFR was way fat due to the addition of meth injection.

jtaliaferro

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Best time from tonight 11.5 119mph this is 12lbs boost 11deg timing. I am convinced there is a high 10 pass on the next track outing.

Kyle86

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Good job!!!! That's more like it, you are gettin really close. That 10 has been alluding me as well. So far 11.3 @ 127 spitting out pistons on the stripe. Back with a 5.3 now, but waiting a while before I turn up the wick again so you will prob reach 10.9x before me. I'm rootin for you though! 119 is making power especially in our heavy cars.

What do you plan on turning up the boost to?

Kyle86

iTrader: (1)

I like your relay board too BTW.

project89

iTrader: (1)

put some timing in that thing thats why its running so slow
18* of timing and that thing will prolly pick up a full second , and u should prolly be closer to 22* of timing

jtaliaferro

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I have plans on about 20psi boost. I have the top end apart upgrading cam, head gasket and head studs. The ebay turbo is going to be replaced with a S475/480 very soon. I am shooting for 9.50 1/4 mile. When this bottom end lets go I will probably go with a GEN4 5.3

It's a ARC8000, very nice switch/relay setup.

jtaliaferro

iTrader: (1)

I am going to creep up on the timing and see what it likes. Just need time at the track.

project89

iTrader: (1)

i agree with creeping up on it but to lil timing can do just as much damage as to much timing , next time out atleast set it to 16-18*

most ls guys are running in the mid 20*'s so ur not going to hurt it

Marc 85Z28

iTrader: (3)

Completely disregard this OP, this is AWFUL advice. At the very least you'll crack a piston. NOBODY in the LS world is running 22 degrees with a boosted engine with stock pistons and pump gas. "Advice" like this is why so many destroy their ringlands.

Edit: It's performance is right where it should be for a stock cam at the boost level.

Orr89RocZ

iTrader: (20)

How much meth you spraying? What size nozzle?
Could get more timing with the additional meth but creep up on it. Ls take less timing than sbc

jtaliaferro

iTrader: (1)

I am spraying 70/30 mixture. Sadly I am not even sure what nozzle I have, its a crap ebay meth kit using what ever they shipped. 14-16 deg timing will be the max this motor will see. I actually had 14deg timing in that 11.5 sec run but something was pulling timing. I expect it was burst knock but I will have to get back to the track for more testing.

Kyle86

iTrader: (1)

14 deg sounds pretty safe to me. I don't think he is anywhere near too low. Too low of timing all i know can do is burn an exhaust valve or make it glow and cause auto-ignition. So long as afr is in the safe area. i learned to creep up timing 1 degree at a time and stop when it stops picking up. Back with the old carbureted stuff it was a pain to adjust the distributor ignition so most people did 2-3 deg adjustments to tune. Also a change to total advance resulted in change in idle advance so it required constant fiddling. With the turbo stuff we are pushing stuff way harder than the old stuff so the margin for error gets much smaller. Thank goodness with fuel injection we can easily change a degree at a time and be exact with it.

You seem like you got it figured out already. My point is consensus right now for turbo guys is don't listen to what ppl on the net are telling you far as timing. Dude above might run on 22 degrees but lots of people have broken their motors with less than that.

jtaliaferro

iTrader: (1)

Time for a small update. I have added Ebay head studs and LS1 headgasket. Boost is turned up to 18psi with 10 deg timing. I will be going to the track this Friday and let it eat or blow.

shawnc16

What fuel?

shawnc16

I'm running E85 10 psi and 20-21 degrees of timing. Plug is asking for more timing. No meth, no IC. Read the plugs.

no green

I haven't seen what converter you have in that? Stall? Chassis settings? Transbrake?

Looks like the 60' is where your loosing it all at... but it is very cool you picked up 10 miles an hour

jtaliaferro

iTrader: (1)

Pump gas with meth injection.

shawnc16

What plugs are you using? The timing is really low. There is no reason you can't use 15 psi with 15* timing to start on meth.

jtaliaferro

iTrader: (1)

Transmission is a TH400 with a 3500 stall.

There has not been much chassis work done, it has a ford 9" with drag shock.

I am leaving off the footbrake building maybe 1psi boot at launch. That is the reason for poor 60ft times.

I also done a complete brake job last night. I don't think the rear brakes were even working due to bad brake cylinders, I hope that helps my 60ft times by holding boost at the line.

jtaliaferro

iTrader: (1)

BR7EF plugs

We will see what timing it likes tonight at the track. I am going to start out with 18psi and about 12 deg timing.

shawnc16

You should leave all your timing in it until about 6 psi, start pulling timing out. Should help you get that thing lit and pull like a freight train.

no green

Good luck with it tonight!

Brakes should help a bunch

jtaliaferro

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I have about 20deg of timing at 5psi

jtaliaferro

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Thanks..,. I will update a time slip tonight. Or carnage picks lol....

shawnc16

Add 8 degrees of timing down low, try 28, then ramp down after, the engine is NA until you hit boost, that's why it's lazy on the front half.

jtaliaferro

iTrader: (1)

Lost a belt and could not make a run. Will have to wait till next week for a time slip.

no green

You don't need a belt for a turbo car

I've thrown about 4 over the years...

jtaliaferro

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I am ditching the GT45 for the new ON3 78/76. I am hoping it can truly put down 800whp that they are claiming. Pulling the motor do upgrade oil pump and throw a set of ported 862 heads and upgrading the converter.

Kyle86

iTrader: (1)

I think you have more left with the gt45, we have almost the same turbo kit (truck manifolds, crossover pipe with y merge at the flange, gt45 turbo). So i would think you should be putting out similar mph at the same boost so maybe you have a boost leak or something. I'm sure you can wring 800 hp out of one if you sprayed methanol to cool iat or ran an air to water. Btw I almost bought that on3 but the customer service horror stories turned me off from them. If you do go that route, i'm curous how much you pick up. Seems like a great wheel combo for our engines.