3800 POWERLOG
- Thread starter quickgrandprix1
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why cant it work for headers? i have seen a couple turbo guys use it
directly from zzp's website....
In an effort to put out the best possible PEMs we've researched and hit a wall. The problem lies in the front header piece. Opening the inlet as people are isn't doing anything because the inlets are already 1.53" (as big as the port in the head). The problem is the lower section of the manifold. It's 2" OD and 1.63" ID. At that section you're sharing with the other ports.Trying to exhaust all 3 front cylinders out of a single 1 5/8" pipe is crazy. It's no wonder so many people pop front pistons and have questionable gains from other PEMs on the market. The rear manifold and crossover aren't as bad. Notice the crossover is also 2" OD, like the front mani, but because it's thin wall you get 1.91 ID. So, the front mani is the narrowest section of the exhaust, giving you 2.09 sq/in of exhaust area. The crossover and rear manifold are up to 2.89 sq/in. So that front manifold section is over 30% smaller than the entire rest of the manifold network and it's the only section that guys selling PEMs aren't doing!
Fortunately ZZPerformance now offers a cost effective solution. The powerlog uses 1 5/8 primaries which feed a 2 1/4" pipe into the crossover. Uses factory mounting, so all the factory bolts and gaskets can be re-used.
Ceramic coated logs are in stock as of 11-2-06
Now with no core charge, angled primaries, stainless tig welds, and machined flange with larger opening.
Excellent for use with our downpips
No loss in torque as seen with headers on the L36 engines
Perfect upgrade for turbo kits (stainless version only)
Low cost
Lowers KR and keeps the front bank of pistons safer.
Quicker engine cool downs from eliminating the cast iron
Power log is 5 pounds lighter than OEM cast front!
Doing the front only gives great gains and takes less than 30 minutes!
directly from zzp's website....
In an effort to put out the best possible PEMs we've researched and hit a wall. The problem lies in the front header piece. Opening the inlet as people are isn't doing anything because the inlets are already 1.53" (as big as the port in the head). The problem is the lower section of the manifold. It's 2" OD and 1.63" ID. At that section you're sharing with the other ports.Trying to exhaust all 3 front cylinders out of a single 1 5/8" pipe is crazy. It's no wonder so many people pop front pistons and have questionable gains from other PEMs on the market. The rear manifold and crossover aren't as bad. Notice the crossover is also 2" OD, like the front mani, but because it's thin wall you get 1.91 ID. So, the front mani is the narrowest section of the exhaust, giving you 2.09 sq/in of exhaust area. The crossover and rear manifold are up to 2.89 sq/in. So that front manifold section is over 30% smaller than the entire rest of the manifold network and it's the only section that guys selling PEMs aren't doing!
Fortunately ZZPerformance now offers a cost effective solution. The powerlog uses 1 5/8 primaries which feed a 2 1/4" pipe into the crossover. Uses factory mounting, so all the factory bolts and gaskets can be re-used.
Ceramic coated logs are in stock as of 11-2-06
Now with no core charge, angled primaries, stainless tig welds, and machined flange with larger opening.
Excellent for use with our downpips
No loss in torque as seen with headers on the L36 engines
Perfect upgrade for turbo kits (stainless version only)
Low cost
Lowers KR and keeps the front bank of pistons safer.
Quicker engine cool downs from eliminating the cast iron
Power log is 5 pounds lighter than OEM cast front!
Doing the front only gives great gains and takes less than 30 minutes!
there is no stainless available. as of now they said they cant see doing that anytime soon because of other projects going on. i have talked to matt from stattma and they said it will not work and would only use pems or turbo headers. zzp/stattma will not put it with there kit for a reason, wouldnt you think that would only add to the power potential for such a cheap cost as an option for it. what turbo guys are using it and having gains over PEMs?
plus it wins worst product name next to donkey punch performance headers :lolsign:
not worth the little gains IMHO when compared to the great available exhaust options we have available to us from WBS
plus it wins worst product name next to donkey punch performance headers :lolsign:
not worth the little gains IMHO when compared to the great available exhaust options we have available to us from WBS
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