Stock LS1 swap dyno run

[Zach33]

Last Time i did talk to them they told me they would only sell the headers with the kit.

Hmmm, might be that they can't guarantee fitment without their mounts. It is a VERY tight fit.

[Madhatter]

Trust me I would lover something bigger, but no one makes a 1 3/4 or 1 7/8 that would fit. The only option would be something completely custom.

What actually gets in the way? Strange that they don't make much over there? You could make a 1 3/4" set in the same design as a 1 5/8" set pretty easily. They sell shorties here with bigger 1 3/4" primaries for our commodores designed to bolt up to stock systems like the factory cast manifolds. Very compact.
Example

http://www.hmheaders.com.au/shopexd.asp?id=147

http://www.pacemaker.com.au/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=132&virtuemart_category_id=27

[bmk]

Last Time i did talk to them they told me they would only sell the headers with the kit.

[Zach33]

Call up Sikky they'll hook you up!

[bmk]

Trust me I would lover something bigger, but no one makes a 1 3/4 or 1 7/8 that would fit. The only option would be something completely custom.

[Madhatter]

1 5/8 is pretty small. I reckon id be running 1 3/4 at the smallest on a 6L with anything resembling a decent cam. Id probably actually step up to 1 7/8 primaries and 3" twin if starting from scratch.

[bmk]

Haha yeah those sikky header are know where close to stock, those are badass long tubes I wish I had the cash for those. I have a pretty big cam with a 112lsa in my 6.0 I hoping that the 1 5/8 sandersons with the 2.5 true dual all the way back will provide enough scavenging..... we'll see.

[Zach33]

No I'm running the IE willwood 6 piston up front with bigger rotors. I'm also running vac boost, not hydro boost.

[SmokeE30]

Zach are you running stock brakes with the garret setup? my buddy that was there at summit point lask weekend with the gold LS swapped early model is running the garret setup with upgraded pads, and was looking at brake options for track abuse. so far on the street even working em on a fun road it hasnt had any issues but it would be nice to find a track tested setup.

[Zach33]

Stock ls1 but with headers right? Or are actually running some assortment of stock cast manifolds?

Stock LS1 with Sikky headers, 2.5 inch duals into 3" single, flow master SUV muffler. Big fat air filter. That's it!

[bmk]

Stock ls1 but with headers right? Or are actually running some assortment of stock cast manifolds?

[The Dark Side of Will]

It needs gussets to keep it straight. Also, the firewall flexes so you at least need to weld in a 1/4" plate to the inside for reinforcement.

Fieros have similar problems with firewall flex with stock and mildly upgraded brakes.
The problem can by addressed by upgrading rotor diameter until the booster is operating in its linear range and pedal loads are low enough that firewall flex isn't a problem.

I did get a firewall reinforcement plate lasered out for the car, though. I haven't put it in yet.

You *should* be able to cut out a reinforcement plate to fit INSIDE the firewall and install it without welding.

[Zach33]

It was fine on the street, it wasn't until I got on the track that the problems started. By the second session, and after we tried bleeding the brakes again thinking it was air, I looked at the firewall bellcrank and saw it was bending. It needs gussets to keep it straight. Also, the firewall flexes so you at least need to weld in a 1/4" plate to the inside for reinforcement.

Really sucked to lose 4 out of 6 sessions because of no pedal. But I'll have it sorted out before the next track day! If I hit 140 at Summit Point I don't want to know what this flying brick will hit on the back straight at VIR!

[LoneWolf]

Yeah, seems fairly cheap & easy to bolt on horsepower, but cam/heads/intake gets expensive. Pretty happy with what I've got now!

Just got back from the track with it, what a bat out of hell! Unfortunately the Garrett brake setup couldn't take track use, just about everything was flexing under hard pedal. So I ended up ripping it out and trying to make up something else at the track. Didn't really work out, I only got two runs :( Might need to email Massive for a manual setup, or go with something like you have JGood.

Ugh. Don't tell me this about the garret set up. I just got done installing it on my m60 swap. I won't be doing much track use though, maybe it's fine on the street.

[JGood]

Yeah, seems fairly cheap & easy to bolt on horsepower, but cam/heads/intake gets expensive. Pretty happy with what I've got now!

Just got back from the track with it, what a bat out of hell! Unfortunately the Garrett brake setup couldn't take track use, just about everything was flexing under hard pedal. So I ended up ripping it out and trying to make up something else at the track. Didn't really work out, I only got two runs :( Might need to email Massive for a manual setup, or go with something like you have JGood.

I bet, a light 340whp e30 is no joke, especially when so much torque is available just off idle. I probably ony have 280whp, and it's a handful with 235's.

Honestly, the e34 remote booster is awesome. It's factory, it doesn't flex one bit if you install it properly. I'm all for stock parts, they almost always work perfectly.