will740turbo
Member
- Joined
- Jun 15, 2006
- Location
- Portland, OR
Hey, turbobrickers.
I'm finishing my full rebuild on my L-block b230ft. I'm just using LH2.4.
The #3 cylinder always goes bad, and someone told me that the volvo race team once upon a time ran an injector that was 10% bigger on #3 to keep it cooler. I'd like to copy that, and I've found one candidate that might match, but I want some other people to weigh in.
The only performance mods are a 15g turbo and 3" downpipe (and camaro cat) because my 13c died, and I bought 2 more that were just as dead. I had to get a new flange/pipe, so I went for bigger.
What I've got right now is this:
Stock injector:
bosch ev1 "long" size jetronic connector, pintle nozzle
280150804 2.2ohms - 30lb/hr - 312cc/min
10% higher flow rate:
0280150034 2.6ohms 32.7lb/hr 344cc/min
I'm running into a problem though when I look on websites. It looks like the original part number 0208150804 was reused and the volvo version maybe was 234cc/min... or maybe it was 312cc/min. I've found both listed, even one pdf that lists both and has different version numbers for them. Some are pintle, some are 4-hole, which seems worse.
The goal is to just make #3 slightly richer to keep it cooler, but I could also see it resulting in 1,2,4 running *leaner* which is no bueno. Has anybody tried this? If it's already been done, I don't need to reinvent the wheel. And if it's going to cause problems rather than avoid them, then I'll stick to the stock injectors, possibly doing my own flow-rate testing to put the heaviest one on #3.
I'm finishing my full rebuild on my L-block b230ft. I'm just using LH2.4.
The #3 cylinder always goes bad, and someone told me that the volvo race team once upon a time ran an injector that was 10% bigger on #3 to keep it cooler. I'd like to copy that, and I've found one candidate that might match, but I want some other people to weigh in.
The only performance mods are a 15g turbo and 3" downpipe (and camaro cat) because my 13c died, and I bought 2 more that were just as dead. I had to get a new flange/pipe, so I went for bigger.
What I've got right now is this:
Stock injector:
bosch ev1 "long" size jetronic connector, pintle nozzle
280150804 2.2ohms - 30lb/hr - 312cc/min
10% higher flow rate:
0280150034 2.6ohms 32.7lb/hr 344cc/min
I'm running into a problem though when I look on websites. It looks like the original part number 0208150804 was reused and the volvo version maybe was 234cc/min... or maybe it was 312cc/min. I've found both listed, even one pdf that lists both and has different version numbers for them. Some are pintle, some are 4-hole, which seems worse.
The goal is to just make #3 slightly richer to keep it cooler, but I could also see it resulting in 1,2,4 running *leaner* which is no bueno. Has anybody tried this? If it's already been done, I don't need to reinvent the wheel. And if it's going to cause problems rather than avoid them, then I'll stick to the stock injectors, possibly doing my own flow-rate testing to put the heaviest one on #3.