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Old 05-15-2018, 11:03 PM #1
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98 Turbo (re)build

Hey guys, those of you that know me know that I turbo'd the runner awhile back..... well that didn't end up so well since apparently I was completely ignorant about tuning (as in i couldnt figure it out so i gave up and just drove it)
Long story short, I cracked a cylinder and melted a piston.
I now have a replacement motor that I plan on rebuilding and then redoing the turbo RIGHT this time.

This is going to be the build thread to track my progress for everyone to follow along and hopefully I can learn as much from you guys as this will be insightful to you.

Right now the plan is to pick up the LCE rebuild kit with the MLS head gaskets and the upgraded forged pistons with 9.0:1 compression ratio for the replacement motor.

The block is going to a machine shop to get worked over and a 0.020 bore.

Im not sure what to do with the heads except for the 3VZ-fe cams (so any input on what to do to upgrade the heads would be appreciated)

I'm switching the crank over to the forged 3VZ-fe as well since its been proven that they are the same (except for the forged part)

The only upgraded rods I can find are the $1400 chromoly rods from LCE (which just isnt in the budget so again any advice on that would be appreciated)

as for fuel upgrades I have an upgraded fuel pump, and the 7th injector from URD with the AIC-T (going to upgrade to the 800cc thanks to advice from Gadget)
I'm also thinking about doing the Water methanol injection for good measure (thoughts/inputs?)
I definitely need to upgrade the auto tranny I have so I would appreciate some input on a good company that doesnt charge out the ass to drill a couple holes in the valve body.
So far thats all im planning so let me know what you think. (pics of first try aftermath and new build progress to come soon)
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Old 05-15-2018, 11:21 PM #2
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Definitely will be following that as I plan to turning my truck in the next few years. For the valve body check out the transgo kit. There's a write up in my signature and it's only a fraction of the cost of the ipt upgrade and does the same thing. Pretty straightforward install as well.
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Old 05-15-2018, 11:28 PM #3
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Quote:
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Definitely will be following that as I plan to turning my truck in the next few years. For the valve body check out the transgo kit. There's a write up in my signature and it's only a fraction of the cost of the ipt upgrade and does the same thing. Pretty straightforward install as well.
Thanks for the info! I'll check it out for sure
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Old 05-15-2018, 11:48 PM #4
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Can you explain a little on the reasoning for swapping to the 3vz cams? I get the reasoning for swapping to the forged crank but what's the advantage of the cams?

When I eventually get to turboing mine I'm only going to be running moderate boost. 7psi tops and tuning either with a URD 7th or a custom 7th I make myself. Just kinda curious if it's something I should look into or not.

What are you running for all of the components? Specifically the manifolds? I've been debating building my own or modifying a set of cx racing manifolds.
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Old 05-16-2018, 12:04 AM #5
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Quote:
Originally Posted by Black798 View Post
Can you explain a little on the reasoning for swapping to the 3vz cams? I get the reasoning for swapping to the forged crank but what's the advantage of the cams?

When I eventually get to turboing mine I'm only going to be running moderate boost. 7psi tops and tuning either with a URD 7th or a custom 7th I make myself. Just kinda curious if it's something I should look into or not.

What are you running for all of the components? Specifically the manifolds? I've been debating building my own or modifying a set of cx racing manifolds.
So for the cams ive learned that they provide a little more horsepower and a higher rpm limit but at the cost of a small amount of torque.
As for the manifolds I'm actually running the cxracing kit. I didnt have to modify it to fit its just kind of a pain getting the crosspipe lined up. I ran the whole cx kit so if you go with that I would replace the bov and Wastegate. Turbo may be chinese but mine held up pretty well. Had it set to 8 psi, the vacuum line to the waste gate came off once and the turbo spooled to 35 psi byt 3500 rpms. That was interesting to say the least.
With 7 psi ive seen other guys on here upgrade their fuel pumps, run colder spark plugs and call it good. But the 7th injector is always a good option.
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Old 05-16-2018, 12:07 AM #6
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Here is the replacement motor I'm tearing down.

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Old 05-16-2018, 12:10 AM #7
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Here is the cx manifolds and turbo. Along with my cracked cylinder and melted piston.

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Old 05-16-2018, 12:15 AM #8
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Here are some other pics of the upgraded fuel pump, 7th injector, aic with timing calibrator, more damage, and another manifold shot.

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Old 05-18-2018, 11:17 AM #9
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Got it mostly torn down last night.

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Old 05-18-2018, 12:02 PM #10
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For cams, Colt Cams has a 5VZ-FE profile that is dyno tested to gain 22 HP. It was made specifically for boosted engines. It's "drop-in" meaning no need to upgrade valves or springs. It costs $600 + shipping to send your cores in.

Quote:
We do offer a mild perf. grind that gained 22 HP

INT: 262° .347L

EXH: 264° .330 L

Cost is $600.00 for the set of 4 + $45.00 return shipping.

Customer supplies cam cores
For heads, they are STUPID expensive. I've contacted two engine builders and they both want about $3k for ported heads with oversized valves. No thank you.
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Old 05-18-2018, 11:45 PM #11
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Quote:
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For cams, Colt Cams has a 5VZ-FE profile that is dyno tested to gain 22 HP. It was made specifically for boosted engines. It's "drop-in" meaning no need to upgrade valves or springs. It costs $600 + shipping to send your cores in.



For heads, they are STUPID expensive. I've contacted two engine builders and they both want about $3k for ported heads with oversized valves. No thank you.
Thank you for the info!! i may have to wait on cams due to budget, but i have a machine shop thats gonna do the bore and work over the head, I havent asked how much to port them yet though. And getting bigger valves would be a nightmare on my budget if its that expensive!
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Old 05-23-2018, 07:24 PM #12
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I got a present in the mail today!!

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Old 06-02-2018, 09:25 PM #13
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OK, so i have the block and the heads at the machine shop, had to get a valve job done, get the heads decked, and the cylinders bored .020 over. magna flux and clean everything. I should be picking it up next week.
I got the rebuild kit with the MLS head gaskets and forged pistons delivered last week.
Once I get the block back it'll be time to paint it, and start assembling it.

In other news, I found a spot on the stock intake that I can mount the 7th injector from URD. it took a bit of drilling but i think its a good spot. I'll upload pics when I get home tomorrow.
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Old 06-03-2018, 12:04 PM #14
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I highly recommend ditching the URD and going the AEM route! The tuning aspect is so easy and better with AEM than the URD.
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Old 06-03-2018, 09:53 PM #15
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Quote:
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I highly recommend ditching the URD and going the AEM route! The tuning aspect is so easy and better with AEM than the URD.
Forgive my ignorance, but what products do AEM carry that could control the 7th injector and timing?
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