Rb25de (supercharged) Project

[r33_racer]

Thickest ring would be the one with the male lip, and its about 13.6mm or thereabouts.

[Craved]

haha bugger, oh well no easy way out for me

keen to see your 4" mufflers too when they arrive

[r33_racer]

Im keen too! I will post pics when they arrive fo shizzle.

I quickly modified the drawings to better represent what actually got made lol.

4inch Female V Band.PDF

4inch Male V Band.PDF

Hopefully that will help. Just gotta be aware that not all the 4" clamps are the same, so these rings might not fit a different clamp, though they would go close.

[r33_racer]

Mufflers came in on friday. They are different to the 3" mufflers in regards to the internals. The 3" had three perforated tubes welded together in a triangle form while these 4" ones as you can see have one big 4" perforated tube in the guts. I guess this one will flow better.

Only took a week from order to delivery. Quick!

I also spent the weekend finishing off the exhaust ports in the head and I lapped all the valves in. All came up pretty good. Though the valves and seats were all cut last year so its no suprise they seated nice and easily with minimal work. Only spent about a minute on each valve with fine compound.

The exhaust ports and bowl area took me about a full day to finish off.

Should get my block back today for o ringing then back for hone and then ready to assemble.

[bigmikespec]

Keep up the good work Mick!

Edited July 3, 2011 by bigmikespec

[r33_racer]

Cheers mang! Im trying!!!!!!!!!!!!!

So, no reply to my pointless email friday morning punk! Whats the deal????

[bigmikespec]

Cheers mang! Im trying!!!!!!!!!!!!!

So, no reply to my pointless email friday morning punk! Whats the deal????

Sorry brother, I was spinning out on Friday from the previous two days in WA...

Those mufflers look much better and a much better option than butchering the other ones. Are they standard size valves? Are they OEM Nissan?

[r33_racer]

Sorry brother, I was spinning out on Friday from the previous two days in WA...

Those mufflers look much better and a much better option than butchering the other ones. Are they standard size valves? Are they OEM Nissan?

Understandable mate.

You are right about the mufflers. Im happy I aborted the dodgy option and did it properly.

Yeh the valves are factory. Stock standard RB25det valves.

[XRATED]

Understandable mate.

You are right about the mufflers. Im happy I aborted the dodgy option and did it properly.

Yeh the valves are factory. Stock standard RB25det valves.

Mufflers look good.. were they made in aus? if so by who??

Nice little clean up on the head too-

Twin charge- I'm loving it.

[Craved]

gonna be loud with that low level of deadening material

who is brett? should we call him?

is that pen holder made out of old muffler perf?

[r33_racer]

Mufflers look good.. were they made in aus? if so by who??

Nice little clean up on the head too-

Twin charge- I'm loving it.

Justin, the mufflers are American, Borla is the name. Come on mate I thought you would have known that! They are very nice and all stainless, so well priced too.

Yeh, nothing too radical since im no pro. That was my first attempt at actually cleaning up the ports, matching, and some minor blending. Its amazing how bad it is inside there.

[r33_racer]

gonna be loud with that low level of deadening material

who is brett? should we call him?

is that pen holder made out of old muffler perf?

Yeh I reckon it will, so im running two in an attempt to reduce the noise. Though I have my doubts that it will work, however, performance first!

It looks like it! I got my nice string of paper weights, a CP piston, PPG dog ring, bottle of oil , 1mm oversize inlet valve inside the perf tube, further across are some valve guides and spark plugs you cant see.

lol. go for gold, so long as your not in Perth, I dont think it would matter!

[Craved]

I'll be curious to see a db reading with them, mines at 105db and it's pretty noticably over limits

[Craved]

Hope you didn't have to pay $60 a pop for new valves from nissan

[r33_racer]

Thats exxy for new std valves. Mine are just original ones out of the head. You can get aftermarket valves for cheaper then that.

[Craved]

ahem ... i been gone for a week and no updates

for shaammmmmeeeee

[r33_racer]

lol. tell me about it. Im still waiting on getting my engine back from machining. Was supposed to be last friday. Now it should be middle of this week. There will be photos when I get it all back and start assembling.

How was your trip?

[XRATED]

Justin, the mufflers are American, Borla is the name. Come on mate I thought you would have known that! They are very nice and all stainless, so well priced too.

Sorry I thought they were custom done locally, re-using the borla outer shells-

So borla made them in 4" for you... cool- loud though.

lol. tell me about it. Im still waiting on getting my engine back from machining. Was supposed to be last friday. Now it should be middle of this week. There will be photos when I get it all back and start assembling.

Your assembally photo diary should be pretty damn good.. I havn't seen a good, step by step bottom end build log on SAU yet.

[r33_racer]

They werent custom or anything. Just off the shelf mufflers from summit. Yeh, im worried they will be quite loud being straight through

I'll do my best to outline what I do when I check it all and put it all together. Though I'm no engine builder so no doubt it wont be as detailed or accurate as one from someone in the game.

[Craved]

lol. tell me about it. Im still waiting on getting my engine back from machining. Was supposed to be last friday. Now it should be middle of this week. There will be photos when I get it all back and start assembling.

How was your trip?

pretty awesome thanks , good to get away from everything for a while.

my machined bottom end has been sitting around for ages, need to find some time to get into it, hope that doesnt happen to you!