Rossco's Engine Build - Page 11 - Perth-WRX.com

Riggs · #**101** 04-01-2011, 07:23 PM

Quote:

Originally Posted by Rossco

I've never seen a black manifold myself.....

Theres a couple floating around.

Rex bays for some reason always look cluttered, coming alony nicely though!

astralex · #**102** 04-01-2011, 07:39 PM

Quote:

Originally Posted by Rossco

It will be back to black soon.....Red coil pack is a hangover from the previous owner who had a thing for red paint......

Coil On Packs... Rid the need for a coil pack.

dtrally · #**103** 04-01-2011, 09:41 PM

Quote:

Originally Posted by astralex

Coil On Packs... Rid the need for a coil pack.

I don't kow if it's that easy on 99/00 model. It only has 2 ignition drivers unlike the pre 97 that has 4. Maybe you could group them into pairs and waste spark them? Have you seen it done on a 99?

astralex · #**104** 04-01-2011, 10:22 PM

Quote:

Originally Posted by dtrally

I don't kow if it's that easy on 99/00 model. It only has 2 ignition drivers unlike the pre 97 that has 4. Maybe you could group them into pairs and waste spark them? Have you seen it done on a 99?

There is a thread on Rexnet in which someone has done so to a V5 or V6, something like that. Also, with the help of Tuna I'm setting up a MY02 engine loom to suit my 99 wrx. As you've mentioned, it involves grouping them into pairs. I've got a diagram around here somewhere for just modifying a 99 loom for COP.

tuna · #**105** 05-01-2011, 03:13 PM

you can use them as wasted spark using GD coil packs on a GC8 yes

Rossco · #**106** 05-01-2011, 03:30 PM

What's the advantage?
I ran 1.7 bar previously with the standard wasted spark coil block & had no mis-fire issue.

Rossco · #**107** 05-01-2011, 05:45 PM

Well Wednesday sucks!

I've just been informed that both of my heads are fucked.
They both have multiple cracks from the spark plug holes to the valve seats.....Fuckin spewing!!

REXXXED · #**108** 05-01-2011, 05:51 PM

Where's the dislike button....!

Mister Two · #**109** 05-01-2011, 05:59 PM

Heads may not be fucked. This happens to heaps of Suby heads.

To quote Tony Knight:

Quote:

Originally Posted by TK383 @ RSLC

I'll show you some later today man, they almost all have them, but you won't see them unless you know what you're looking for.

I work on a limit of 3-4 threads down into the plug hole, more than that & I reckon it's a problem, less than that & they're good to go.

I always knock the lumps off around the plug holes - those ridges cause hot sopts which cause the cracks, remove them & polish over the area & the problem goes away. Removing the ridges usually gets rid of about 50% of the crack & the rest won't go anywhere once the hot spot is removed.

Rossco · #**110** 05-01-2011, 06:09 PM

The cracks have propagated to the valve seats which are in interference fit to the heads, there is a chance that a valve seat may dislodge when hot & that would an expensive GAME OVER!

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