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hey Ariel - what do you do to the cast alloy bits before welding in terms of prep? - I always find alot of impurities coming out of casts when welding.

We have an acid at work, it's basically mag wheel cleaner (I work for a radiator shop) I sand the runners about 5-10mm down from where i'll be welding and dip the who9le runner into the solution and clean it off.

I have 0 issues welding cast. I only use 5356 for cast welds, 4043 for everything else. My cast to runner welds are 5356.

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like alumi-brite?

basically a sulfuric acid solution ?

Yeah, Kind of.. Think of it as an "exfoliator" for aluminum. It heats the metal and pushes all the crap out. We use it every day, worth its weight in gold.

It does dull the finish, though.

We use glass beads at work for sandblasting, Not good for welding aluminum unless you grind the area after sandblasting.

Hey Ariel,

just letting you know that when you did the mount for the throttle cable, you did it at the wrong angle so when the throttle cable is mounted to the TB, its at a weird angle and needs to modded. the cable is rubbing against the throttle body mount and in time will cause it to fail.

not happy about this as i did give you the TB to trial fit before welding and now i have to take the plenum off and pay someone to fix it.

This is all for the weekend's updates....3 on the right are the race version rb30 and 3 on the left are street version rb30. Both will have billet fuel rails and 80mm billet throttle bodies

Final round of the go karting season tomorrow so I have to get the kart ready tonight and up early tomorrow morning. Lucky the track is only 5 minutes away....

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  • 2 months later...

I just realised it has been 2 months since I last updated.

Here is something I done this weekend. RB25RV (Race Version) with R33 RB25. I just have to finish off mounting the fuel rail next weekend. Also attached is a pic of another one I done a while ago R32 RB25.

There is plenty more coming over the next couple of months......it's the business I have ever been. The best is a complete custom FE3 (Mazda) 2.0L looking to make 1200hp and aiming for the 6 second region.

Cheers,

Ariel

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This morning's update....finished the Race Version RB25.

This afternoon I might start on the RB30 Race Version and the Mazda FE3 tomorrow....that's if this 40+C heat stays away.

Then there is the bellmouths for the next 6 weeks or so...... :thumbsup:

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  • 2 weeks later...

This weekends progress. Firstly the RB30 Race Version, complete and ready for delivery. It's going in a Holden FC Ute…..nice choice.

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…..and this is for an up and coming Pro Compact 4 cylinder front runner. It was picked up today . The FE3 which should be packing some serious punch.

This is my favourite photo

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Next weekend is the RB30 Street Version group buy.

Happy Welding,

Ariel

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