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Search: Posts Made By: 89JYturbo
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Forum: Power Adders
02-08-2016, 08:48 AM
Replies: 200
Views: 13,242
Posted By 89JYturbo

Re: 401 twin turbo new track best

Yeah that's what I figured. Just messing with you. Makes the results even more impressive for sure.
Forum: Power Adders
02-08-2016, 08:10 AM
Replies: 200
Views: 13,242
Posted By 89JYturbo

Re: 401 twin turbo new track best

I'm sure at full boost there was enough compression to light #4 no problem.
Forum: Power Adders
11-01-2015, 04:46 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I made a few pulls at the sloppy mechanics dyno day yesterday. It didn't make crazy power, but we had fun and had a nice drive there and back in my car. It was the first lengthy drive I took the...
Forum: Power Adders
10-29-2015, 09:26 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

See post #71, there is a link of a video with it idling.
Forum: Power Adders
10-26-2015, 12:12 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I have the heater hoses come off the water pump, down to the right of the radiator, and then up over the RF inner fender. I don't have a pic of the hoses coming off at the engine, but the one below...
Forum: Power Adders
10-24-2015, 11:43 PM
Replies: 200
Views: 13,242
Posted By 89JYturbo

Re: 401 twin turbo new track best

My thoughts exactly. Great job on the car, I enjoyed watching the videos and I like the track announcers reactions! I agree, the big wheels on front make it looks like it shouldn't be that fast!
Forum: Power Adders
10-24-2015, 11:08 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Updated engine bay shot. I painted the compressor covers and polished the compressor inlet pipes. Should be worth an additional 37hp or so.

I hope to find out next weekend, I'm planning to take...
Forum: Power Adders
10-11-2015, 12:01 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I finally got this car running like it should. It hasn't quite felt right since I got it together. I found the cam was retarded 3 degrees from the cam card, and I decided to advance the cam 6...
Forum: Power Adders
10-02-2015, 07:19 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I have 1/8npt bungs welded in my up pipes, then use and adapter from that to 3/16 brake line. A 3ft length of brake line tubing goes to a GM oil pressure sensor (from an LS engine, 0-5v analog...
Forum: Power Adders
10-01-2015, 06:10 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Yes, here are the numbers I got from a pull I did in third gear, going WOT at 2500RPM:

RPM------Boost(psi)----Drive Pressure(psi)
2500-----0.9------------2.2
3000-----6.9------------6.2
...
Forum: Power Adders
10-01-2015, 01:08 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

No, I don't know what I used for bends. I think I used several different ones. I do know I would only use aluminized piping if I did it again, I tried to save money and used some pipe that was bare...
Forum: Power Adders
10-01-2015, 12:18 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Yes, my car is very quiet. I had external waste gate dumps that were obnoxiously loud, so I have a second muffler for them dumping just ahead of the LF wheel (see pic). I shouldn't be plugged up on...
Forum: Power Adders
10-01-2015, 11:31 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Thanks. Yes, I made the exhaust system myself. It is dual 3" into a single 4" out the back. I don't have any pictures showing the ground clearance, but it is pretty good, I'd say better than a lot...
Forum: Power Adders
09-08-2015, 08:04 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Nothing much. I had an IAC valve issue, took out the stepper motor chip in the MS3-Pro ECU. I sent it to DIYautotune, they fixed it up but then USPS squashed it on the way back to me! DIYautotune...
Forum: Power Adders
08-13-2015, 10:40 AM
Replies: 396
Views: 40,501
Posted By 89JYturbo

Re: Project Déjà vu- 87 Z28 5.3L Turbo

In for 10psi video. As for the PRNDL input to the PCM, could you use a scanner or your tuning software to check that PID?
Forum: Power Adders
08-08-2015, 10:42 AM
Replies: 396
Views: 40,501
Posted By 89JYturbo

Re: Project Déjà vu- 87 Z28 5.3L Turbo

I like it. Sounds really good.
Forum: Power Adders
06-28-2015, 07:04 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Its not so obnoxious now (added a muffler to the wastegate dumps). Now I can't even hear when the wastegates open up. I thought for sure I'd still hear it, but they are completely silent (which is...
Forum: Power Adders
06-28-2015, 07:03 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I still have it, and it will be getting more attention after the Camaro is done (or I get it to a stopping point, it may never be done!).
Forum: Power Adders
06-22-2015, 07:27 AM
Replies: 396
Views: 40,501
Posted By 89JYturbo

Re: Project Déjà vu- 87 Z28 5.3L Turbo

170*F ECT sounds great. What are you using for radiator and thermostat? I have a stock IROC radiator and stock vette thermostat in mine. I am normally around 195*F when driving, and it will get to...
Forum: Power Adders
06-18-2015, 07:05 AM
Replies: 396
Views: 40,501
Posted By 89JYturbo

Re: Project Déjà vu- 87 Z28 5.3L Turbo

Cool. Ain't the first time something like that happened. At least I don't think so, because I wouldn't know from experience or anything...
Forum: Power Adders
06-15-2015, 08:47 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

It just sounds like all of a sudden there is this huge exhaust leak. I guess that's what it is LOL. I also think just bringing the two dump tubes together into one larger pipe would sound a lot...
Forum: Power Adders
06-15-2015, 07:45 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Okay, I got the turbos spinning! I'm only running 6psi to start. It runs decent, but I found the open waste gate dumps are just way too loud and obnoxious. Sounds like an old farm truck when I'm up...
Forum: Power Adders
06-01-2015, 07:36 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Thanks for the comments. My goal was to produce positive manifold pressure this month, and I worked hard to make it happen. I got burned out a little bit and things were not going to get done the...
Forum: Power Adders
05-24-2015, 01:14 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Okay, still not boosted but I can at least run WOT now (up to this point I couldn't really open it up because the original fuel pump couldn't keep after, even NA).

It took some doing, but I got...
Forum: Power Adders
05-15-2015, 10:32 AM
Replies: 13
Views: 3,877
Posted By 89JYturbo

Re: Vertical vs horizontal core intercooler results

oops, double post.
Forum: Power Adders
05-15-2015, 10:31 AM
Replies: 13
Views: 3,877
Posted By 89JYturbo

Re: Vertical vs horizontal core intercooler results

That was my idea too.
Forum: Auto Detailing and Appearance
05-07-2015, 06:57 AM
Replies: 29
Views: 4,390
Posted By 89JYturbo

Re: May 2015 COTM **WINNER**

I copied the external appearance of my car from another member on here, CrazyHawaiian (paint color and wheels/tires).

These are the specs he gave that I copied:
Front Wheel Boyd Coddington...
Forum: Auto Detailing and Appearance
05-05-2015, 11:11 AM
Replies: 29
Views: 4,390
Posted By 89JYturbo

Re: May 2015 COTM **WINNER**

The wheels and tires are 18".

The hood is actually my original hood my friend modified with the raised center and he hand built the NACA ducts. I can't take credit for the body work or paint. I...
Forum: Power Adders
05-03-2015, 10:57 PM
Replies: 13
Views: 3,877
Posted By 89JYturbo

Re: Vertical vs horizontal core intercooler results

Nice intercooler install. Looks like I wasn't the first to think of a flowtie grill for a third gen.
Forum: Power Adders
05-03-2015, 07:21 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Just a little progress this weekend. Buttoned up a few loose ends and finalized the intercooler install. This is my version of a "flow-tie" grill. I'm undecided whether or not to polished the I/C...
Forum: Auto Detailing and Appearance
05-03-2015, 07:14 PM
Replies: 29
Views: 4,390
Posted By 89JYturbo

Re: May 2015 COTM **WINNER**

Here are some better exterior shots I took today. It was a very nice day to have it out. I'm glad I can drive it in these final stages of the build, but I'm ready for boost!
Forum: Auto Detailing and Appearance
04-30-2015, 08:22 PM
Replies: 29
Views: 4,390
Posted By 89JYturbo

Re: May 2015 COTM **WINNER**

This is a link to the turbo system build thread:
https://www.thirdgen.org/forums/power-adders/683033-89-iroc-twin-turbo.html

AND many thanks to Orr89 for the nomination and support! My car will...
Forum: Auto Detailing and Appearance
04-30-2015, 07:45 PM
Replies: 29
Views: 4,390
Posted By 89JYturbo

Re: May 2015 COTM **WINNER**

Hey everybody, thanks a lot for the support. I'm sorry I didn't respond sooner, I had no idea that I could even be eligible for this award, especially since my car is just a work in progress at this...
Forum: Power Adders
04-26-2015, 09:01 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I copied the external appearance of my car from a member on here, CrazyHawaiian (paint color and wheels/tires).

These are the specs he gave that I copied:
Front Wheel Boyd Coddington "Tuned" 18x8...
Forum: Power Adders
04-26-2015, 08:45 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I really like the MSpro up to this point, but I have a lot of features not enabled yet. The only problem I had so far (really unrelated to the MSpro) was my ignition input had to be reversed from...
Forum: Power Adders
04-26-2015, 01:22 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

More progress. I took three days off work to dedicate to this project. Doesn't seem like I got that much done- maybe I spent too much time playing fetch with Thor?! I'm glad to have the front end and...
Forum: Power Adders
04-18-2015, 01:32 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Just took these today. I'm not a very talented photographer.
Forum: Power Adders
04-14-2015, 07:09 AM
Replies: 396
Views: 40,501
Posted By 89JYturbo

Re: Project Déjà vu- 87 Z28 5.3L Turbo

That looks like #5?
Forum: Power Adders
04-05-2015, 10:52 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Getting this project back into gear.

1) Blouch Turbo in Lebanon PA custom built my turbochargers. They recently developed a lighter weight turbine wheel that is 38% lighter than the stock GTX...
Forum: Power Adders
07-17-2014, 08:45 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Thanks for the input. Now I have more to think about...
Forum: Power Adders
07-17-2014, 04:28 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

You mean from an installation standpoint? Or are there other issues? I liked the idea of always having a back-up fuel pump available in case one would ever fail (say in the middle of drag week...
Forum: Power Adders
07-16-2014, 08:00 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Tuning is going good so far. The MS3-Pro from DIYautotune is working great. Its pretty much dialed in for normal street driving. I can' believe how good it drives with minimal tuning; I don't even...
Forum: Power Adders
07-06-2014, 11:14 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

More pics
Forum: Power Adders
07-06-2014, 11:11 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

All the wiring is done, exhaust is done, its aligned, inspected and drivable. On to the tuning!
Forum: Power Adders
04-25-2014, 04:41 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

No, this is my car. He's saying he will stick to the stock intake on his car since the Edelbrock intake I used won't clear a stock hood (without mods).
Forum: Power Adders
04-24-2014, 09:25 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Thanks for the compliments.

The intake is a very tight fit, it won't fit under a stock hood, especially with the engine installed with your average off-the-shelf mounts (the mounts I made...
Forum: Power Adders
04-23-2014, 01:19 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Some final assembly:

The main project left yet is the wiring and megasquirt EFI installation. I'll basically be rewiring everything under the hood.

I plan to test run/drive the car initially...
Forum: Power Adders
04-16-2014, 11:13 AM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

I am taking a few days off work to get back on this project, I hope to have the engine in for the last time by this time next week, and be started on wiring in the MegaSquirt pro.
Forum: Power Adders
02-13-2014, 02:02 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

Yeah, there's no way you'll fit the flipped truck manifolds with the stock flanges on them without major surgery to the rest of the car. Fortunately the manifolds cut and weld very easily.
Forum: Power Adders
02-12-2014, 06:11 PM
Replies: 106
Views: 30,589
Posted By 89JYturbo

Re: 89 IROC Twin Turbo LQ4 Build

The engine is in the stock location front to back. It is 1/2" lower and 1/2" to the driver side from the original SBC position. I found that the stock SBC location is actually offset 1" to the...
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