Handle power? Hardly.

Ive seen a 5 hp Briggs and Stratton make 40hp natural. Handle power? No, they dont last long when you ask that much of them.

For me, its not about how much power you can make. We can all make power now, by just buying a pile of parts and screwing the stuff together.

For me its about how long you can make power at a certain level. So, a measurement of 1 year or 8000 street miles is meaningless to me. Now, if you said 60 full 5 sec dyno pulls, or 400 1/4 mile runs before a problem arises, then we have a better understanding of how durable the engine is at a certain power level, since its under full load for a known duration of time.

I built a 468 cuin 100% methonal injected small block chevy that made nearly 900 hp natural, and never made it beyond 10 dyno pulls without a serious mechanical issue. That motor cost nearly $20k and was eventually scrapped. It just wasn't durable.

I recall years ago replacing the head gasket 10 or times on the same bank with the motor in the car. Yes, we poured nitrous into that motor and it made a crap load of power, but for only 15-20 seconds before it lifted the head. How much fun is that?

Today I have no interest in breaking my back pulling engines, re-ringing motors and sleeving damaged blocks and the like. I want it to run and run well without working on it constantly. For me, I would spend $800 on pistons and $1000 on rods in a heartbeat if it means I dont have to drop the motor every other weekend to fix it.

The stock VQ37 is good, it would be helpful to know how good it really is at 12-15 psi.

Our Shop nismo has over 300 dyno pulls on it, 4 half mile events, and the 20 or so dragstrip passes at around 12 to 17 psi and its still running strong while this car has around 150 dyno pulls on it...:tiphat:

And the shop car is all stock long block, including oiling system?

If so, that is getting good!

Correct

300 dyno pulls for wheel dyno is what 1500 sec?

20 1/4 mile passes is 220 sec?

And the four half mile events is 80 sec?

Total 1800 seconds?

So a total of 30 min at that level?

There are a few of us that have been running Fast Intentions Twin Turbo for some time with no issues with the stock block and internals. I have about 30k miles mixed street and track and have been running from 9 to 13psi based on the fuel I'm using. I know djtodd has somewhere in the range of 25k track miles on his FI tt and stock block with no issues. I agree that you can build in additional reliability by upgrading pistons and rods but it is not totally necessary if you install and tune you turbo or supercharger correctly. Most engines fail do to poor tuning or poor maintenance and operator error...driving beyond the limits of the motor.

:ugh2:

SOHO Motorsports & Ecutek Tuning
 

Please stop arguing this. There are tons of people that have been making 600hp for a LONG ENOUGH TIME to prove that the motor will handle more power. No one is promising that the engine will last as long as it would if it was still NA. If you care about really long term reliability. Making high hp isn't something you should be into. Because everyone that's boosting knows that they'll need a rebuild some time before the world ends.

As far as counting sec's go... dyno pulls and half mile pulls put a ton of stress on the motor. Doing multiple pulls from 0-160 would've killed it if it was too much to handle. People have blown up on stillen kits making 430rwhp, but that's not because the motor was weak. It's because the tune and kit were trash.


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Why all the hate? I remember when this forum was all about people pushing the envelope to see what the platform can do. When I built mine the magic number was 500whp, then it became 600whp. If it becomes 650-700whp, we should all be happy. In addition, if this car blows up, who cares (except maybe the owner). It's all about pushing boundaries. Nothing risked, nothing gained.

Right on SOHO, good job!

No hate here, just facts.

I want to know what real life experiences are for this combo.

Interested in building one myself, but not if it wont last.

BTW: Ive made 1000s of 1/4 mile runs, have two NHRA competition licenses, and built many engines for competition.

So yea, building power is what im into.

Not trying to be a prick... but if you had facts you would be asking for information.

The key word here is MANY. You don't just build one engine and expect it to last forever. nor do you add boost and beat a stock engine and expect it to last forever. All the boosted guys are pushing the limits. Most people are still running strong and very very few have blown up in the 650 range. No one has had the balls to push it well past 700 on stock long block. If you're going for 7 or more you need to build the bottom. However, everything gets loose after you beat it for a long time... have a good day sir :tiphat: :tup:

Im interested in the combo - if it is reliable.

So, yes I am asking for information, isnt that why SOHO posted the pull on this Forum?

Hopefully Nick will post more detailed info on it.

30 min under full load is actually very impressive. Think about it.

A nascar engine is basically junk after 120 min of racing under green. They use the best parts unlimited money can buy.

Lol, the question reliability has been answered by a few of us including Nick...so are you looking for a build list, if so go to the Force Induction section and you will find tons of information or you can check out the Gallery section for a more personalized look at buid projects. Or you can go to SoHo website and send Nick an email....he is very responsive...I have talked to him by phone as well.

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very true. I thought you were saying that 30 min under full load didn't show for anything lol i know the owner of the car and it is a bone stock 370z with a bolt on single turbo kit running soho meth kit and e90. car is pretty nasty

Yeah, I think his tone was misinterpreted. Guys who do SERIOUS racing look at engines as consumables. You get one 1/4 run out of a top fuel engine, right?