Just installed the RIPP MODS ... Supercharger !!!!!!
01-25-2009, 03:45 PM
#41
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I had a 1970 Dodge Challenger R/T S/E with 440 and 4-speed / 4.10 geared Dana 60 that was for racing !!!
01-25-2009, 03:52 PM
#42
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Sure anything is possible - you just will just have to probably live with an inverse exponential relationship with engine (and powertrain) life after the first "reasonable" amount of power is obtained.
Engines are designed and tested to be durable for their target life (e.g. maybe 200k miles) for their stock outputs with a low target cost at the OEM - typically they don't make them stronger than they have to these days as that costs $$.
Of course, in Europe now with all their downsized turbo charged DI engines (and the 2.0 l VW diesel turbo for example), the base engine mechanicals in the range is typically the same as the top - just different boost and minor other differences - which goes aganst my point, but this is not the case with our engine it seems to be only designed as a one trick pony.
What I would be worried about is that typically there will be some weak points encountered in the engine as boost is increased (or other parts in the powertrain will fail as torque inceases) that will fail at a certain point, e.g. bearings, exhaust valves, crankshaft, lack sufficient piston cooling, lack of sufficient block/head cooling, air-flow restrictions in the head etc.
I'd be interested to see the result of running a JK engine boosted on a dyno at full load for x hours, and through various durability type tests the OEMs do to get confidnce - and find and correct the weak points.
Having said that 8psi isn't that much boost... but data beats speculation..
Engines are designed and tested to be durable for their target life (e.g. maybe 200k miles) for their stock outputs with a low target cost at the OEM - typically they don't make them stronger than they have to these days as that costs $$.
Of course, in Europe now with all their downsized turbo charged DI engines (and the 2.0 l VW diesel turbo for example), the base engine mechanicals in the range is typically the same as the top - just different boost and minor other differences - which goes aganst my point, but this is not the case with our engine it seems to be only designed as a one trick pony.
What I would be worried about is that typically there will be some weak points encountered in the engine as boost is increased (or other parts in the powertrain will fail as torque inceases) that will fail at a certain point, e.g. bearings, exhaust valves, crankshaft, lack sufficient piston cooling, lack of sufficient block/head cooling, air-flow restrictions in the head etc.
I'd be interested to see the result of running a JK engine boosted on a dyno at full load for x hours, and through various durability type tests the OEMs do to get confidnce - and find and correct the weak points.
Having said that 8psi isn't that much boost... but data beats speculation..
All of these are Valid points......
But if you look back a few posts in this thread ..... You will see where I mention Ripp did their homework and tore the engine apart FIRST to see if it could handle the super charger and they found :::::: Chrysler did their home work and the engine has some very BEEFY internals that would allow Ripp to confidently add BOOST without breakage !!!! And then they intercooled it with a Methanol Injection kit !!!! More Power less HEAT !!!
01-25-2009, 04:27 PM
#43
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I never should have sold it. The freaky thing was that my Dad let me buy it. It belonged to a nieghbor and when another kid came along he needed a 4 dr. It was one year old and I was 17. My Dad was fine with it until one day his car broke down and he had to borrow it to get to work for a meeting. Until then he had NO ideawhat it was or what it would do. Sometimes I wonder why I'm still alive.
01-25-2009, 04:32 PM
#44
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I am confused you asked for LONGEVITY , but you want 50 more HP and TQ !!??
The configuration they have NOW is in the neighborhood of the 5.7 Hemi for Flywheel HP with minimal boost for Longevity of the system ...........Best of Both worlds !!!!!
Then you get it for $ 10,000 + less than a comparable 5.7 Hemi swap and get better fuel economy !!!!! .................
You really want your cake and eat it too !!!!
The configuration they have NOW is in the neighborhood of the 5.7 Hemi for Flywheel HP with minimal boost for Longevity of the system ...........Best of Both worlds !!!!!
Then you get it for $ 10,000 + less than a comparable 5.7 Hemi swap and get better fuel economy !!!!! .................
You really want your cake and eat it too !!!!
Longevity is not all that important to me. I don't expect it to last 200 or 300k. 100k would be fine. Heck, it's not a DD. I just don't want it to crater when I floor it and pass somebody at 10,000 ft. So yeah I want more HP and torque than they are giving right now. And since I'm being a PITA I'd like it at as low an rpm as possible.
I want to eat my cake and have my lady bake another.
01-25-2009, 05:05 PM
#45
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Longevity is not all that important to me. I don't expect it to last 200 or 300k. 100k would be fine. Heck, it's not a DD. I just don't want it to crater when I floor it and pass somebody at 10,000 ft. So yeah I want more HP and torque than they are giving right now. And since I'm being a PITA I'd like it at as low an rpm as possible.
I want to eat my cake and have my lady bake another.
I want to eat my cake and have my lady bake another.
01-25-2009, 07:48 PM
#46
Longevity is not all that important to me. I don't expect it to last 200 or 300k. 100k would be fine. Heck, it's not a DD. I just don't want it to crater when I floor it and pass somebody at 10,000 ft. So yeah I want more HP and torque than they are giving right now. And since I'm being a PITA I'd like it at as low an rpm as possible.
I want to eat my cake and have my lady bake another.
I want to eat my cake and have my lady bake another.
The factory engineers has fed and state guideline's they have to follow, as well longevity to deal with for the least cost.
this engine is D-TUNED from the factory for this reason.
You can get a blower in a bottle if you want instant HP (Nitrous oxide) but because most problems that are associated with nitrous do come from mechanical failure due to the power increases. Since nitrous allows a much denser charge into the cylinder it dramatically increases cylinder pressures. The increased pressure results in heat, and heat will cause many problems from melting the piston, cylinder head or valves, to pre detonation.
Much of the same apply's to SC, so running over recommended boost you will see the same results. To properly cover all the bases to build a complete engine, Rippmods won't have the money or engineering to accomplish this any time soon.
33
01-26-2009, 06:33 AM
#47
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MBRP Performance Exhaust and RIPP Mods
Thanks to all the great guys at RIPP, we have a SC on its way for our JK. We can't wait to get it installed and look forward to the gains. Our company JK is gradually turning into the performance offroad vehicle we have been looking for. We can't wait to run it through its paces in the Canadian North and then see everyone down at MOAB.
Thanks again RIPP MODS!
Thanks again RIPP MODS!
01-26-2009, 11:06 AM
#49
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Other issues that have to be considered are useage, weight, fuel economy, need for upgraded axles etc.
Think before hitting Submit Reply.
01-26-2009, 02:20 PM
#50
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Furthermore, the blower unit itself is around $2700, then you have all of the meth injection pumps, fuel rails etc, that are not cheap, plus a tremendous amount of engineering and R&D that goes into it. When you look at all of this, RIPP is not running away with tons of profit, and their service and support is top notch.
Quit hi-jacking threads with your negative slander when you are so misinformed.
