Project: The Timebomb

Detroitmuscle

Forum Member
I have been very quiet lately on the car scene as most other things in life take priority but this is an attempt to mix things up a bit and have a little fun and gain some knowledge in the process. As most of you know building a car is an expensive hobby so in the spirit of true budget-minded builds Mike (c0ncEpt) and I have teamed up to try and save at least one of our cars from sitting out this year.

The goal: To get this car up and running this season on a very very tight budget, shake out all the bugs, and possibly get some power numbers as well as track times.

The car: We are using my 98 Trans am as the base, it has some decent suspension pieces, a "built" rear end that may or may not hold (keeping fingers crossed) and very soon to have a trans that should be more than capable of taking anything we will throw at it and then some.

Motor: We recently acquired a junkyard 5.3 LM7 motor with 126K on the clock, complete longblock with accessories. We will be doing very minimal work to this motor the plan is to get some ebay head studs, some LS9 headgaskets, a set of valvesprings, clean it up and beat it to all hell and back.

Transmission: Detroit gearbox fresh built TH400 RMVB trans with trans brake.

Turbo Kit: Huron speed sponsored non-a/c T4 flange kit using a 44mm wastegate and XS 76mm turbo.

Fuel system: Aeromotive A1000 pump, new AN lines for feed and return, regulator, filter ect.

This is a very basic and generic rundown of the setup we will be putting together, of course anything is subject to change at this point and we will be keeping an eye out for any and all good deals but remember this build will be done on the CHEAP until we can afford otherwise. All parts we have so far have been great deals or thing we had lying around. We hope to learn a lot here as there will be a lot of firsts in this build for Mike and myself. We have no set hp or ET goals at this point just looking to have a running car that we can both enjoy and take it from there. Here are a few pics of what we have so far.

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Bye bye H/C setup
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New motor

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Made some more progress on lunch, got the heads off the car and pulled the plugs, not bad at all for a 126K motor in my book somebody took care of this motor by the looks of it.

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1. I don't think we will need any help spooling this turbo but possibly when we get a much needed upgrade.
2. Its actually a Frankenstein 8.8 so we will see how well it holds up, the car is not light and its been mid 1.4s on the old setup.
 
1. I don't think we will need any help spooling this turbo but possibly when we get a much needed upgrade.
2. Its actually a Frankenstein 8.8 so we will see how well it holds up, the car is not light and its been mid 1.4s on the old setup.

Wow, I didn't read carefully enough and just looked at the pics and saw the long tube headers :)

Didn't even notice you were going with a turbo. And if it's an 8.8, it will be fine I bet!
 
What cylinder heads were on you H/C setup?

ETP 5.3s

Wow, I didn't read carefully enough and just looked at the pics and saw the long tube headers :)

Didn't even notice you were going with a turbo. And if it's an 8.8, it will be fine I bet!

Just a last pic of the old setup before I start changing everything again. Just hoping we aren't the laughing stock of the turbo ls community :)
 
Pardon my ignorance on something I clearly must be missing. But why the switch from an all aluminum larger engine to the 5.3? The much better cathedral port heads? Old one blown?
 
Pardon my ignorance on something I clearly must be missing. But why the switch from an all aluminum larger engine to the 5.3? The much better cathedral port heads? Old one blown?

Not ignorant at all, this will be our first turbo setup so I'm sure we will have a lot to learn. Much easier to learn on a cheap junkyard motor than the nice more expensive bullet that will eventually replace this one. Its become pretty popular to grab these junkyard 5.3s and throw a good bit off boost at them, cheap fun and you don't have to worry as much about popping the motor.
 
Ok, makes sense now. I know you can pick them up for a song, too bad you can't pick up everything needed like pcm, harness to do a retrofit for cheap also. I saw the HR article where they thought they had a 5.3 and it turned out to be a 4.8. They fed it copious amounts of boost and it took it in stride for many pulls. I believe in excess of 60 above 1000hp. Should be a very fun experience for sure!
 
Pardon my ignorance on something I clearly must be missing. But why the switch from an all aluminum larger engine to the 5.3? The much better cathedral port heads? Old one blown?

For whatever reason, the standard 5.3l engine just work well with boost! We have 2 customers with junkyard 5.3s making over 600 to the tires!
 
Ok, makes sense now. I know you can pick them up for a song, too bad you can't pick up everything needed like pcm, harness to do a retrofit for cheap also. I saw the HR article where they thought they had a 5.3 and it turned out to be a 4.8. They fed it copious amounts of boost and it took it in stride for many pulls. I believe in excess of 60 above 1000hp. Should be a very fun experience for sure!

there are guys that run very cheap aftermarket engine management systems (microsquirt for example) and make lots of hp and they are easy to wire up. once you start looking into what these engines are capable of, and how simple it really is to make them work. its pretty incredible.
 
Looking good Jeff! Glad we could be part of this with our Turbo Kit..... make us proud! :D

Are all your kits for the GM F body? It be great if someone made a kit for a 5.3 or other LS motors in Fox body. Cheapest way to go fast is a Fox body with a Chevy
 
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