So is it louder? I had to install high flow cats on my F-150 some years back. I already had true dual exhaust and when I added the high flow cats, it made it very loud.
ARCHIVE 100 Series Cat-back Exhaust
- Thread starter NKP Garage
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So is it louder? I had to install high flow cats on my F-150 some years back. I already had true dual exhaust and when I added the high flow cats, it made it very loud.
Can you provide any proof? I don't understand auto's to be this inefficient, especially today. Your example of a 20% loss from JUST the trans makes me doubt your process of testing or assume that this is the extreme case of difference of efficiency between a manual and an auto (and then therefore a lousy example on your point).
I understand most cars, manual or auto, are near enough to each other in total drive train loss that there's not a 20% difference between the two. A difference, yes! But not 20%. Typically I see the total for drivetrain losses (including, driveshafts, trans, diffs, etc) are commonly in the 15-20% range.
For example ... if you're car was an industry leader in drivetrain efficiency with a manual transmission at around say 10%... the same car would be on the very high side of inefficient with +30% loss with an automatic. Or if this model car was around average at say 17% loss in a manual, the same car with an auto would be an inconceivable almost 40% loss?
On the surface of your example it seems very likely that there were other factors contributing to a 100hp gain/loss: final gearing during the dyno runs, re-tuning between runs, different climate conditions, different tires, tire pressure, ambient temperatures, etc.
Fill us in with the technical details...
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- #123
Not louder, just a different tone.
That example was from a 2JZGTE with a single 67 from 4-5 years ago, that went from a TT auto trans to a TT Getrag 6spd. It all depends on the car, the transmission, etc... There are many variables. But in the end, an automatic transmission will always lose somewhere around 5-15% more power than a manual will. Do some quick Google searches, it's fairly normal across the board with any vehicle. Some newer sports car automatic transmissions are getting very efficient these days, but even the most efficient new technology automatics have more power loss than their manual counterparts.
I don't understand auto's to be this inefficient, especially today. Your example of a 20% loss from JUST the trans makes me doubt your process of testing or assume that this is the extreme case of difference of efficiency between a manual and an auto (and then therefore a lousy example on your point).
I understand most cars, manual or auto, are near enough to each other in total drive train loss that there's not a 20% difference between the two. A difference, yes! But not 20%. Typically I see the total for drive train losses (including, drive shafts, trans, diffs, etc) are commonly in the 15-20% range.
For example ... if you're car was an industry leader in drivetrain efficiency with a manual transmission at around say 10%... the same car would be on the very high side of inefficient with +30% loss with an automatic. Or if this model car was around average at say 17% loss in a manual, the same car with an auto would be an inconceivable almost 40% loss?
On the surface of your example it seems very likely that there were other factors contributing to a 100hp gain/loss: final gearing during the dyno runs, re-tuning between runs, different climate conditions, different tires, tire pressure, ambient temperatures, etc.
Fill us in with the technical details...
I am lucky enough to live in a no emissions county, so I was wondering if you have any sound clips of the mid-pipes with no cats. Or at least an idea if it will be obnoxiously loud or what. I'm pretty much ready to order just don't want to deal with a return if I get the wrong thing.
Thanks,
Brandon
Thanks,
Brandon
@ baktasht
When's the intake going into production?
When's the intake going into production?
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- #126
It will be around the end of December or early January.
I'm sure you're aware already and have taken the necessary design steps. But as a reminder of the LC/LX vehicle's capabilities, consider that many people use these trucks in high water applications. So I'd guess it would be very appropriate to have either some considerations towards splash protections in a single design or a stand alone design for 90% of driving that has a separate splash protection piece that can be "snapped on" for the times when it's necessary out on on the trail.
Any chance the intermediate pipes with the cats for the 05's will be available by the end of the month?
I was going to take advantage of the intro pricing and do the whole exhaust from manifolds back.
I was going to take advantage of the intro pricing and do the whole exhaust from manifolds back.
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- #129
Are you referring to the intake that we will be making later in the year?
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- #130
We should have the mid- pipes for the newer models available on about 1 month. The mid-pipes for the early models is available now.
Anthony.L
Looking for the end of the road...
Headers still coming in Jan???
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- #132
Yes, headers are scheduled for January
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- #134
I'd be up for thatFantastic!!!
I know you need something for your LC
Has anyone installed one of these yet?
I would be happy to send out one of our catbacks for the cost of shipping for a 3rd party dyno
. Also the 1 or 2 sets of defective headers from the 1st run were replaced with 2nd gen 304 stainless ceramic coated headers. Not one defective stainless header returned and dont expect to see any of them. Thanks for the hijack.
Nick
. Also the 1 or 2 sets of defective headers from the 1st run were replaced with 2nd gen 304 stainless ceramic coated headers. Not one defective stainless header returned and dont expect to see any of them. Thanks for the hijack.Nick
I would be happy to send out one of our catbacks for the cost of shipping for a 3rd party dyno
Nick
Nick I ran the Dyno's on the headers - if your serious I will give the cat back the same treatment we did on the headers.
Rob
- Thread starter
- #138
I would be happy to send out one of our catbacks for the cost of shipping for a 3rd party dyno
Nick
If you'd like to send over a DT catback for testing we can do a back to back dyno along with video of the install/dyno/removal/install/dyno/removal on any local customer's unmodified truck so everyone knows whats being done exactly and what's being tested.
Any dyno testing done for true comparisons need to be on the same car, within a few days of eachother max, same weather, same elevation, same dyno (Dynojet, not any of that other dyno might read the same if it feels like it machines). Otherwise its just all pretty graphs and numbers with no real grounds for comparison. Please start a new thread for this.
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This is a 100 Series tech thread not a vendor forum thread. I think that makes anything posted here fair game for discussion. I think Nick baited you but regardless the claims made by any vendor are fair game for discussion. I actually like your agressive tone in comparing products.
I offered to dyno your system on the very trucks we used to do the DT headers. I use a Land & Sea Pro 1000 All Wheel Drive Chassis Dyno at a local tuner, it's a quality dyno. Dynojet isn't the end all be all of dyno's. I'm offering Nick/DT, who has supported this forum by creating the headers to begin with when no other maker would, the same thing I offered you. I understand how to conduct dyno testing and my write ups show it. My offer still stands for you.
I offered to dyno your system on the very trucks we used to do the DT headers. I use a Land & Sea Pro 1000 All Wheel Drive Chassis Dyno at a local tuner, it's a quality dyno. Dynojet isn't the end all be all of dyno's. I'm offering Nick/DT, who has supported this forum by creating the headers to begin with when no other maker would, the same thing I offered you. I understand how to conduct dyno testing and my write ups show it. My offer still stands for you.
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