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  • 3 weeks later...

Where is the flex join Jez? Exhaust looks good other than that.

I have never used a flex join on my exhausts scotty. The dump pipes are very secure near the gearbox. Plus it will test out the 6boost manifolds strength :)

Mitcho im hoping for 400kw from mine and 350+ from the R34 with 5558.

The main thing im aiming for is response. Well as much as possible with a 400kw turbo. I will be tuning mine with stock cams for now. Then poncams, then when the headgasket pops i will look at variable intake cam and port work. I will be testing the bottom end on my 26. If it lets go i will worry about it then.

I will be testing the bottom end on my 26. If it lets go i will worry about it then.

Brilliant attitude!

Hope it all goes well, they're both going to be flex fuel aren't they or is it just yours?

Edited by Mitcho_7

I have never used a flex join on my exhausts scotty. The dump pipes are very secure near the gearbox. Plus it will test out the 6boost manifolds strength :)

I always run a flex in the screamer pipe as the expansion between off gate and on causes the pipes to move too much. The gate pipes are cold then become white hot as the gate opens. (get a video of it on the dyno, its impressive.) It will most probably crack at the base where it joins the dump and load up the gates and manifold/studs like you said. Bugger removing it all for repairs to save the $20 a two inch flex costs.

Thanks Scotty i will look into them tomorrow. Is easily added onmy car but on the 34 the wastagate pipes is only 2 inches long and turns 90 degrees in the 2inches.

Have u seen any crack due to the reason stated?

Besides mine will be on gate more not haha. Dyno time then trailer to circuit.

Here's hoping you can crack a 10 mate, it will be a nice setup.

I have seen one crack a stainless manifold within an hour on the dyno. (that was with a venting screamer.) I also watched my exhaust grow longer by over 2 inches and glow red at the tip. I can just imagine the stresses on the tubing up the hot end.

I have seen one crack a stainless manifold within an hour on the dyno. (that was with a venting screamer.) I also watched my exhaust grow longer by over 2 inches and glow red at the tip. I can just imagine the stresses on the tubing up the hot end.

That sounds pretty wild, bet Jez is glad you mentioned this prior to him getting them on the dyno

It isn't really an issue if you like pulling the parts back off to weld them but I bet its a job and a half to fit. I just did a split 6boob install and it was a pita, especially the gate position. I fabbed it all in the car though.

post-63525-0-77868800-1340536058_thumb.jpg

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