Attention: TDR Forum Junkies Thought this report might be useful to those considering a upgrade from their stock turbo.
With Edge EZ, DD2's & DTT transmission, I had air problems with the stock HY-35 turbo. I don't tow but regularly haul @ 8500 to 9,000 lbs. Without turnbuckle on wastegate I had to back off throttle due to high EGT,s. With Turnbuckle, could pull 38-40 psi but turbo sounded like it was ready to explode and power seemed to flatten out quickly, due to high temp intake air, I guess.
After many searches, I went with the Kwik Spool B-1B due to a) Reported quality and b) Room to grow HP later on.
After 2,000 miles, My findings & opinions are:
OVERALL IMPRESSION
Couldn't be happier; Quality is excellent; performance is all I was promised & more than I expected.
PERFORMANCE RESULTS
-Spoolup is only slightly slower than HY-35. Very easy to get use to. No silencer ring- pleasant whine to let you know its working.
-Smoke Level is about the same and easily controlled. Actually appears to be less-probably due to fall weather (cooler air) showing up the same week I installed the new turbo.
-EGT Level; @ 8,500 lbs and full throttle- Quicker increase than HY-35. Jumps to 900 degrees but increase after that is slow motion. Gradual climb to 1150 degrees over 30 sec +/-. Could not create situation with temps > 1200 degrees. (I'm @ 650' altitude).
-Boost Levels: 38-40 psi @ WOT. Judging by straight line acceleration curve (seat of the pants feel) it's all usable cool air. From 10 psi to 100 mph, my CTD feels like a rocket sled compared to previous turbo. MFG claims this turbo can easily handle 55 psi.
-Horse Power: Did before and after Dyno on a Dynojet 248c. Gained 20 HP - from 320. 6 to 340. 5.
-Cool Down: adds 10-15 seconds on average. Easily handled with a little planning ahead.
Only downside was not being prepared for having to cut & weld down pipe to fit new turbo. Had heard of this problem from another TDR member so bgt. turbo manufacturers down pipe. Still didn't fit. Had to removed 1" at flange (on exhaust) to move down pipe 1" forward-away from transmission tunnel where it was hitting truck body.
Aside from this headache, the KSB-1B is a real winner in my opinion and well worth the investment.
With Edge EZ, DD2's & DTT transmission, I had air problems with the stock HY-35 turbo. I don't tow but regularly haul @ 8500 to 9,000 lbs. Without turnbuckle on wastegate I had to back off throttle due to high EGT,s. With Turnbuckle, could pull 38-40 psi but turbo sounded like it was ready to explode and power seemed to flatten out quickly, due to high temp intake air, I guess.
After many searches, I went with the Kwik Spool B-1B due to a) Reported quality and b) Room to grow HP later on.
After 2,000 miles, My findings & opinions are:
OVERALL IMPRESSION
Couldn't be happier; Quality is excellent; performance is all I was promised & more than I expected.
PERFORMANCE RESULTS
-Spoolup is only slightly slower than HY-35. Very easy to get use to. No silencer ring- pleasant whine to let you know its working.
-Smoke Level is about the same and easily controlled. Actually appears to be less-probably due to fall weather (cooler air) showing up the same week I installed the new turbo.
-EGT Level; @ 8,500 lbs and full throttle- Quicker increase than HY-35. Jumps to 900 degrees but increase after that is slow motion. Gradual climb to 1150 degrees over 30 sec +/-. Could not create situation with temps > 1200 degrees. (I'm @ 650' altitude).
-Boost Levels: 38-40 psi @ WOT. Judging by straight line acceleration curve (seat of the pants feel) it's all usable cool air. From 10 psi to 100 mph, my CTD feels like a rocket sled compared to previous turbo. MFG claims this turbo can easily handle 55 psi.
-Horse Power: Did before and after Dyno on a Dynojet 248c. Gained 20 HP - from 320. 6 to 340. 5.
-Cool Down: adds 10-15 seconds on average. Easily handled with a little planning ahead.
Only downside was not being prepared for having to cut & weld down pipe to fit new turbo. Had heard of this problem from another TDR member so bgt. turbo manufacturers down pipe. Still didn't fit. Had to removed 1" at flange (on exhaust) to move down pipe 1" forward-away from transmission tunnel where it was hitting truck body.
Aside from this headache, the KSB-1B is a real winner in my opinion and well worth the investment.
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