November 17, 2019, 08:16:58 AM

Author Topic: UK RHD LS1 8.8 FD Gunnytron's build thread  (Read 92068 times)

Offline 4packet

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #75 on: February 04, 2013, 12:48:11 PM »
Did you mean to split the 2 halves of the caliper? The seal kits don't include the centre O-rings.

If you get stuck, I can sell you a replacement set. I've got a stock front setup spare and the larger 314x32mm setup from a late spec RS/RZ. Have spare rear rotors also somewhere.

Alternatively I have a 330mm AP BBK for sale too. Its listed on FDUK.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #76 on: February 04, 2013, 01:52:53 PM »
Did you mean to split the 2 halves of the caliper? The seal kits don't include the centre O-rings.

If you get stuck, I can sell you a replacement set. I've got a stock front setup spare and the larger 314x32mm setup from a late spec RS/RZ. Have spare rear rotors also somewhere.

Alternatively I have a 330mm AP BBK for sale too. Its listed on FDUK.

I have got both calipers apart but one of them I had to cut the brake pad pin in half. It's the pin that's stuck in the caliper.

BBK out of my budget at the moment. Will let you know later if I need the stock or RZ ones. Ta
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 Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #77 on: February 07, 2013, 03:21:26 PM »
FAIL!

I tried heating the caliper up with a heat gun then smacked it with a centre punch and this happened:



Next step the drill. Failing that it's new caliper time.
« Last Edit: December 09, 2017, 07:14:27 AM 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.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #78 on: March 23, 2013, 07:15:53 PM »
My build has been pretty non-active recently due to a money shortage. I was getting twitchy so thought I would test fit the headers.

Good new is the steering rack clears the header. I don't think the boot will survive long there though so I am going to have to find an alternative heat proof covering.



The bad news is that the header has only about 1mm gap next to the frame rail. Not sure what to do about this. Options as I see it are:
1 - Bash the frame rail in
2 - Bash the header in
3 - Create an angled spacer that goes between the engine and the header so that it kicks the header inward a bit





I also want to sort the parts I need for my intake. I have done a test fit of the Hinson rad but I am not sure which hole to mount it in. No matter which one I use there is very little space between the water pump and fan. Not only that but there is also very little space for intake piping.

I may have to look at getting a lower profile fan. Ideally I would like enough lean on the rad so that I can get an OTR working. Failing that I will be going for a 102mm piping setup.





« Last Edit: December 09, 2017, 07:19:17 AM 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.

Offline zeeshan

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Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #79 on: March 26, 2013, 08:48:19 PM »
I'd just bash the header in slightly. Please do post about what you're going to do about the steering boot. I'd like to put something better on there too.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #80 on: March 27, 2013, 01:53:22 AM »
I have pretty much decided that cutting the headers by the flange then bending and re- welding is the best option for the headers.

With the steering joint I will probably wrap some heat shield around it or maybe make a heat shield plate and bolt it to the chassis rail. I would have thought that plenty of people on here have already done something similar but not looked yet.
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 4packet

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #81 on: March 27, 2013, 05:32:08 AM »
From memory I think most have melted the boot in the first instance and then given up on it and just removed it. Pete's car in the UK had the Hinson headers. Think he said it took 2 or 3 goes at Hinson sending a part that would remotely fit and he still had issues with heat and the steering joint catching them.

It's what convinced me to stick with the LS3 Camaro maniflds.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #82 on: March 27, 2013, 05:40:18 AM »
Clearance in the joint isn't too bad actually. But you certainly can't say the headers are a good fit.

Still, I got then secondhand and cutting and welding them is going to be cheaper than custom jobs.
« Last Edit: April 01, 2013, 07:05:21 AM 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.

Offline bimbleuk

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #83 on: March 28, 2013, 12:30:22 PM »
I used some reflective heat shield and a couple of high temp zip ties and my boot is still intact after 3 years. The collectors on yours probably don't help the fitment but they look like they'll flow well so worth a bit of hassle!

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #84 on: March 29, 2013, 01:32:09 PM »
Sounds like the easiest option. Did you just fit the shield over the rubber or ditch the rubber?
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 Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #85 on: March 29, 2013, 01:34:13 PM »
Not much to report still.

I removed the rear caliper for rebuilding and painting and will get the other off tomorrow.

I test fitted the other header and there is loads of room that side. With the problematic one I have decided to let the exhaust shop sort when I get my system made (way off yet).
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 bimbleuk

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #86 on: March 31, 2013, 01:47:28 AM »
Sounds like the easiest option. Did you just fit the shield over the rubber or ditch the rubber?
I left the rubber boot in place. Depends on how much yours will chafe.

I also wrapped the primaries on but left an inch or so gap from the head just in case the flange got too hot and warped.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #87 on: April 01, 2013, 06:51:52 AM »
Removed the rest of the calipers and stripped them ready for paint and servicing.



« Last Edit: December 09, 2017, 07:20:22 AM 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.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #88 on: April 01, 2013, 06:58:31 AM »
I am still a little frustrated as I am not really in a position to get my diff mount sorted.

Here are my options:

1 - Current Samberg - Relatively expensive and it can potentially chew bushes.
2 - Samberg rear subframe - If he actually goes ahead with this it will mean a better exhaust route, but more expensive again (god know what shipping to UK would be).
3 - Wait for the guy from Dyno Torque over here to finish his mount. This would be my preferred option, but He is obviously very busy but it's been over a year since he announced it and there's still no eta (if ever).
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 Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #89 on: April 01, 2013, 07:12:05 AM »
Good news is I am 99% sure that I am going to settle for the EFI HP LS1 ecu and loom combo. This resolves my problem of not currently having a loom and also, in the long run, should save me some money from visits to tuners. Especially if/when I stick a lumpier cam in it.

The downside is that it's not cheap at 1300 to my door (tax and import duty included). Most place appear to sell it for about $1400 so if anyone knows of it being cheaper let me know (I want to be able to get tech support so no random eBay people).

One thing to note is that apparently there is a newer version that no longer has the issue with the GM coils. I did have the part number somewhere.
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.