I know yours has run great for some time. Best guess where it was 9n hp before rebuild? I know 400 chp is the goal just wondering what the step up might be?

What did the builder say about breaking the bolt OFF?

that all sucksvexcept playing with the Bridgeport!

BrianN enjoys rebuilding the suby engines ..... just ask him 

Your def having a challenging time like I have been.

Outfront said my old engine S/B 320hp.  Going from 10lbs to 15lbs boost, I have heard that getting into the teens on boost will really wake up a subi.  I ran the setup for 12 years.  I wanted to go up to 17 or 18lbs (just to have bragging rights over Mike  ) but John wanted me to have a boost controller if I was going over 15lbs, I didn't want to mess with one. 

I didn't even talk to the builder, I already had the heads installed before I realized the bolt was broke.  The bolt broke off about 3/8" down into the hole, so I made a bushing on the lathe to fit the hole then used a left handed drill bit.  My wife said "They make drill bits for left handed people?"     I was nice in my reply. 

I am only going to run 10lbs boost this next trip as I don't have time to get it on a dyno.  But it will be cool to see the difference in the newer style turbo and how it spools up/ 

I bought the bridgeport from Jerry and added a DRO to it.  Still need to add the 3rd axis, just haven't had time. 

His radiator and fuel tank must be right behind the seat sandwiched together?? No intercooler either?

https://youtu.be/X_bPvXFPBX4?si=E1hCeVZhxLQrIlqr

I was wanting to go up to 400 hp on the engine, but I did not have a closed deck or good crank.  I did a compression test before I tore it down and all were within 2 lbs of each other, but when I did a leak down test, the intake valves on #3 were whistling pretty good.  Had them rebuilt and they broke a bolt off in the head and didn't tell me (they might have broke it on the final assy and didn't know?).   Got the bolt out but it was a hard bolt to find.  Special stepped shoulder bolt to align the cam bearing cap.  The new turbo won't fit, the intake manifold wouldn't fit, the water crossover hit a vent tube, etc.  Just the joys of new build/  But I am powering thru it.  I did get to use my new bridgeport to ream out the heads for larger 1/2" head studs.

I know yours has run great for some time. Best guess where it was 9n hp before rebuild? I know 400 chp is the goal just wondering what the step up might be?

What did the builder say about breaking the bolt OFF?

that all sucksvexcept playing with the Bridgeport!

BrianN enjoys rebuilding the suby engines ..... just ask him 

Your def having a challenging time like I have been.

Deep Busch, I asked above but never heard.......what happened to your motor to nessitate a full rebuild?

Technically,  one could use one shaft to do both. They instruct not too and I agree, it does shift smoother using 2 shafts. According to weddle, these hv24 and 25,'s were designed around the baja 500 racers. Most generally the 250 too 300  hp class. When I first heard that. I thought hmmmm why rest on such low power units if your going to rate it at 600 hp input. Sean said that Baja runs wot the vast majority of the 500 miles. Sand rails make short bursts but no real sustained pulls like the desert floor of Baja 500.  They split the shift shafts to end missed shifts in the race class's.   Thatscwhat I was told, I'm going to choose to belive it until it pisses me off then I won't 

Mid engine is a tiny tiny part of the market as they are difficult to build.

The fun part will be designing and building a rev lock out. It right and up.   I can see hitting rev speed shifting 3rd. !!

The 091 is nice as in its a single shift shaft. The hv24 has 2 shift shafts as seen in the diagrams above. Both have to be used for mid engine.

I got it shifting correctly last night.  Tacked new shifter in and reversed cable throw. Need to dial in ran lengths to shorten throw and ease of effort on shifter now. Would be far cleaner with a bell crank but then thats another point of Play and or failure. Tried a couple different routes. The rear cable mount is jerry rigged clamped in place. I am tired of cutting tack welds loose.