June 06, 2020, 06:52:23 PM

Author Topic: UK RHD LS1 8.8 FD Gunnytron's build thread  (Read 101159 times)

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #525 on: September 19, 2019, 04:25:11 PM »
All I can say is buckle up because the real work starts now! Haha.

Depending on how picky you are it can take years to refine the car to where you want it.

The great news is, it is a hell of a ride!

S$%t, I'm pretty picky  ::)
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #526 on: September 19, 2019, 04:27:25 PM »
Are you intending to control it using throttle position or revs or something? I didn't think the electric ones reacted quickly enough if that was the case.

Also getting a back box with the tips not sticking out at an angle is an issue.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline Exidous

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #527 on: September 19, 2019, 04:33:18 PM »
I've not decided on the details but using the ECU allows me to do whatever I decide. I'll just have to figure out how it moves the motor. It's fully variable so it's probably a stepper motor.
94 BB Sleeved gen IV LS7, MS3ProU with TC, RONIN 8.8 and LT's with custom 3.5"single to VAREX muffler.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #528 on: October 17, 2019, 04:38:49 PM »
My front cover alignment tool took 10 days to get here from the US, so that's not too bad.

I'm in the throes of removing the front of the engine now.

I also saw that the side mounts for my under tray are too low. I thought it was the steering rack bolts that were scraping on the speed bumps but it was these. The bad thing about this is that it means my low radiator fan is in danger of hitting something. To remedy this I either have to get a dual fan setup or remove my fan shroud so that I can put the fan further up.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #529 on: October 19, 2019, 12:31:01 PM »
I got as far as getting the cover aligned and the pulley partly back on. I need to sort a tool though as it is not playing ball this time.

Interestingly I had to undo some of the sump bolts in order to get the front cover aligned properly.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #530 on: October 29, 2019, 05:23:41 AM »
Something is not right with my Racelogic setup. My abs light is in and I don't get any readings from my wheel sensors.

The tach reading appears to just be a flatland too. All be it at the correct rpm.

Going to be modifying my exhaust this week to marry it up with the racing beat twin tip.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #531 on: October 29, 2019, 02:35:27 PM »
Today was spent messing with the TIG. Having an issue where I can't stop the weld from going grey.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline digitalsolo

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Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #532 on: October 30, 2019, 02:20:10 PM »
Gas flow or amperage issue?
Blake MF'ing McBride
1988 Mazda RX7 - Turbo LS1/T56/ProEFI/8.8/Not Slow...   sold.
1965 Mustang Coupe - TT Coyote, TR6060, modern brakes/suspension...  project car
2016 BMW 428i xDrive Gran Coupe - Completely stock...ish

Offline Cobranut

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #533 on: October 30, 2019, 04:40:49 PM »
Gas flow or amperage issue?

I have the same problem, mainly because I haven't had time to practice much.
I'm guessing too little gas flow or too much current causes this oxidation?
1995 FD, 7.0 Liter stroked LS3, T56, 8.8, Samberg kit.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #534 on: October 30, 2019, 06:20:06 PM »
I spent another day chasing my tail with this.

I can get a nice shiny spot weld with and without filler. I also get a pretty shiny end of the weld bead, but everything in between is always grey. I've tried flow rates, cup height, amperage, travel speed (which seams to be controlled by the amperage) but haven't managed to crack it. It's a little frustrating as the underside of the weld is super shiny (I'm using purging flux).

It's crunch time now so I am going to have to make do with grey welds. I don't think there is anything wrong with them structurally, just aesthetically. Can't be any worse than the sugared welds on the current setup.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #535 on: November 04, 2019, 12:21:38 PM »
After a busy week I finally got my Racing Beat Dual tip fitted. I had to modify the Hinson Y-pipe.

Before:



After:



My welds are pretty messy, and inconsistent. I gave up trying to stop them going grey but at least I know they don't have sugaring inside.

Unfortunately I found I have a leak here:


Here:


And here:


So I am going to have to rebuild the gearbox :(

« Last Edit: November 04, 2019, 12:28:59 PM by Gunnytron »
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #536 on: November 04, 2019, 02:55:26 PM »
I forgo to say, I love the RB backbox. It's taken the volume down and made the car sound a little more premium and less nascar. I am glad I didn't bother with a mid muffler.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #537 on: December 16, 2019, 02:07:04 PM »
After watching an episode of The Skid Factory I have started to get paranoid. I can't remember if I got fuel safe wire for the fuel pump  :o


https://www.norotors.com/index.php?topic=12880.msg185244#msg185244

I've taken a few steps back with the car recently. The drivetrain noise was getting worse so I have taken the diff apart to sort it. I thought it might be the axles but it looks like it's the diff bearings.

I did paint my strut bar, make a new shifter handle.

I also managed to drive home in heavy rain with the fuel cap off (lost) and the fuel flap open  :banghead:
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.

Offline Exidous

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #538 on: December 19, 2019, 07:31:34 AM »
Grey welds is almost always not enough speed. I had this issue for a long time. More amperage means more speed and less chromium oxidizing.
94 BB Sleeved gen IV LS7, MS3ProU with TC, RONIN 8.8 and LT's with custom 3.5"single to VAREX muffler.

Online Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #539 on: December 19, 2019, 05:52:42 PM »
Grey welds is almost always not enough speed. I had this issue for a long time. More amperage means more speed and less chromium oxidizing.

OK, thanks for the info. Hopefully I will get to have another go at some point.
http://www.norotors.com/index.php?topic=12880.0
FD, LS1 running 220 3.90 Trickflow heads, Comp Ultra-gold Arc 1.72 Rockers, 7.550 BTR Pushrods, BTR Stage II NA Cam 227/234 .614"/.576" 113+2, ARP Head Bolts, BTR Platinum Springs, Ported FAST 90, NW 90mm TB, FAST 60lb Injectors, Textralia Clutch/Flywheel, T56, Cobra 8.8, 31 spline, trac-loc 3.55 Diff, Holley HP EFI, Racelogic TC.