February 19, 2025, 06:38:36 PM

Author Topic: UK RHD LS1 8.8 FD Gunnytron's build thread  (Read 252057 times)

Offline bimbleuk

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #105 on: June 11, 2013, 11:09:20 PM »
It's costing me a fortune. The only card I can get near me is portfolio mounting board. I hope I don't have to do too many more mockups :)

Soak the card in resin and duct tape it to the TB and you're finished :)

Offline perf0rmance

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #106 on: June 19, 2013, 05:38:44 AM »
How is the fitment with the fast 90/NW 90?
Did you chop your hood anywhere?

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #107 on: June 19, 2013, 06:13:39 AM »
How is the fitment with the fast 90/NW 90?
Did you chop your hood anywhere?

The intake fits fine for the bonnet but the bulkhead had to have a hefty smack.

The TB front edge has had the corner ground off by the previous owner. He was running Hinson subframe though (I am on Samberg) so it probably doesn't mess to be.
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 perf0rmance

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #108 on: June 19, 2013, 10:33:59 PM »
How is the fitment with the fast 90/NW 90?
Did you chop your hood anywhere?

The intake fits fine for the bonnet but the bulkhead had to have a hefty smack.

The TB front edge has had the corner ground off by the previous owner. He was running Hinson subframe though (I am on Samberg) so it probably doesn't mess to be.

Any chance you've got pics of the amount of smackage? LOL

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #109 on: June 20, 2013, 01:46:59 AM »
Afraid all the pics I have are in this thread. The engine is in at the mo, otherwise I would have taken some more for you.
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 #110 on: July 20, 2013, 02:26:08 PM »
Still making the intake. The good news is I think I have a final mockup so hopefully I will get it made soon.

I Purchased a Mazda 323 wheel and fitted that (not done electrics yet). It's amazing how much lighter it is than the old one.



Holes drilled for the indicator cancellation things


Got some stereo controls..nice.


The old lump. In pretty good shape but very hefty.


« Last Edit: December 09, 2017, 07:42:37 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 #111 on: July 24, 2013, 05:34:56 AM »
My "blem" pulley turned up today. It is obviously one that has been fitted then removed. But at $250 I don't mind a few scratches.





« Last Edit: December 09, 2017, 07:47:00 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 #112 on: July 24, 2013, 07:09:25 AM »
Hurry with the intake!

I swapped the heads plus a cam a couple of weekends a go and also fitted a used ATI damper. I hadn't thought that much about pinning the crank but one of your other posts and got me thinking.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #113 on: July 24, 2013, 08:53:38 AM »
Hurry with the intake!

I swapped the heads plus a cam a couple of weekends a go and also fitted a used ATI damper. I hadn't thought that much about pinning the crank but one of your other posts and got me thinking.

I am hoping to get the intake made this next week :)

Almost seams silly not to pin the crank whilst it's off.

You driven the car since the heads and can swap? What spec you go for?
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 #114 on: July 25, 2013, 03:23:58 AM »
Hurry with the intake!

I swapped the heads plus a cam a couple of weekends a go and also fitted a used ATI damper. I hadn't thought that much about pinning the crank but one of your other posts and got me thinking.

I am hoping to get the intake made this next week :)

Almost seams silly not to pin the crank whilst it's off.

You driven the car since the heads and can swap? What spec you go for?

My pulley is on now so I'm going to mark the bolt and pulley for location and check it.

I was waiting for 243 heads to come up and some did on the HSV/Monaro forum. Bought them and spent the next 2-3 weeks porting them at home. I'd already bought a low mileage Comp Cams kit from Craig including a 222/224 566/568 112 cam, dual springs, push rods. Also had the ATI pulley and LS7 lifters tucked away waiting for the right day.

So far I've only driven it a few times but the impression is that the engine revs better without the heavy cast crank pulley and feels smoother to me anyway. As for power well I've gained another 1000 RPM as it's still making power right up to 7K! my exhaust is restricting any actual gains in peak numbers until I change it (I can compare airflow numbers in the EFI Live software).

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #115 on: July 25, 2013, 04:19:09 AM »
I have to confess that I have yet to find the patience to read up on cam and head numbers. It's all a little gibberish to me at the mo.

I don't really know even what I have got on mine. I may actually be better off selling mine and buying a complete kit.

Maybe it would be cheaper just to supercharge or turbo it :)
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 #116 on: July 26, 2013, 04:03:29 AM »
I have to confess that I have yet to find the patience to read up on cam and head numbers. It's all a little gibberish to me at the mo.

I don't really know even what I have got on mine. I may actually be better off selling mine and buying a complete kit.

Maybe it would be cheaper just to supercharge or turbo it :)

Just depends on your aim. Mine was to increase the useable rev range as I was not getting the best use of the gearing. The mild cam has done that. For more power then yeah forced induction.

I 've been checking some of my logs and to back up that feeling of the engine being smoother. So far I've not seen any knock spikes in the maps where before I used to get the odd 0.5 - 1 deg peak during a WOT power run. I think they were mechanical knocks not true detonation so it does appear to be smoother. I can only assume the ATI crank is helping.

Offline Gunnytron

Re: UK RHD LS1 8.8 FD Gunnytron's build thread
« Reply #117 on: July 29, 2013, 06:36:43 AM »
Last pic of mockup. I have now handed over the blue prints and mockup to the fabricators. Should be done by the end of the week hopefully.

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 #118 on: July 29, 2013, 09:17:19 AM »
Got my mate to machine some nice 10mm spacers for the clutch pedal.




« Last Edit: December 09, 2017, 07:46:51 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 #119 on: August 02, 2013, 11:05:31 AM »
My intake is now made. I still have to cut the hole for the filter and figure out the best way to clamp it.

I will get some pics of it in situ once I get back home.









« Last Edit: December 09, 2017, 07:48:50 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.