Is anyone else running the PTE billet wheel 6262 on a 1.6L B16? I have had a car on the dyno for a few days that just doesnt seem to be doing what it should. Here is the rundown and also what I have already checked (over and over again).

1600cc B16A GE sleeved
9:1
CTR cam
Supertech valvetrain
JG intake manifold
PTE 1000cc injectors
Hondata S300
Peakboost tubular manifold
PTE 6262 T3 .63ar

The car is making 260whp on my Dyno Dynamics on 16psi. I have had too many turbo B16s on my dyno to count and they almost always have roughly a 50trim on them. Like clockwork they typically do 250whp on 9psi. This car is making 10 more hp on 7 more pounds. I understand its a lower compression engine with a turbo that isnt doing any good at only 16psi but still, where is the 100hp or so that this thing is down.

Ive checked and rechecke - Cam timing, synch'd ignition timing, watched ignition timing with a light while someone else makes a pull in the car, boost leaks, ensured vtec is engaging both mechanically and electronically, I have 85psi of oil pressure at the service port on the front of the head when the vtec solenoid is energized. I can turn vtec off in the map and the car loses 80whp.

If anyone has any ideas Im all ears. Ive been building turbo Hondas since the late 90s and it has been almost that long since Ive been this stumped.

-bill

 

leaking manifold?

small exhaust?

compression and leakdown test perhaps

 

Good points, things I forgot to mention in my post.....

checked the wastegate, its good and you can hear (and watch) it open when its suppose to. Both manifolds are good, no leaks. Leak down test is within spec.

 

are all injectors and or plugs firing?

 

your running both CTR intake and exhaust cams?

 

so what size exhaust does it have?

 

post the dyno chart, it will show a lot.

downpipe have a flex bellow in it? seen those collapse and cause all kinds of problems.

 

yes CTR in/exh cams. downpipe does have a flex section, I will inspect it internally tomorrow.

i'll try to get the sheet scanned and posted. the HP curve looks just like the boost curve (Im logging boost with the dyno), with the exception that HP doesnt completely flatten out. It does somewhat keep climbing.

all injectors and plugs are firing, if not it wouldnt run this good. The car runs and drives awesome it just doesnt go anywhere when you lean on it lol. AFR is 11.5:1 table top flat and after peak torque I have the timing doing a 17-20* ramp. Ive put as much as 4 more degrees into it and it doesnt really make that much more power. However if you pull 4-5 degrees from it the thing loses a good amount.

 

check for boost leaks perhaps

 

that turbo must just be nowhere near its efficiency range... or its a severe mismatch for the setup.

 

Where was the ideal VTEC point for this motor? Any catalytic in the exhaust system?

 

Who was opperating the dyno? If it was on the wrong rollers that explains it, my turbo b16 made 190whp at 16psi with a t3/t04e turbo, this was at a shop using a dyno dynamics dyno and the idiot running the places didn't know how to put a FWD car on the Dyno (mainly evo custoemrs i guess), i left and went somewhere else, 317whp on a Dynojet. Dynodynamics does read lower, but not that much.

Edit: and my b16 is 8.3:1 so its not a compression thing, and never mind i see its your own dyno so im sure you set it up properly, good luck.

 

Yea, take it to another tuner/dyno..

 

baka, it seems like he is the tuner and owns the dyno

 

how does the valve train look? rocker pads ok? valve adjustment in spec

 

While making a run, have some one make sure the blow off valve is not leaking.....
Also complete a boost leak test.

 

valve adjustment is correct, I have verified timing mechanically while the car is underway on the dyno.

Something is not right with the boost response, I know the 62 is going to be fairly laggy on a B16 but I even put a t3/t4 on the car and it only made it better by ~400rpm. 1 bar on a t3/t4 by 5800 is not right. The BOV and gate bench test ok, and I cannot find any boost leaks. I have put 40psi in the system with no leaks. There is no reason this car is this laggy and that has to be directly related to why its not making any power. The car on 7psi is making 15 less whp than on 15-17psi.

 

collapsed flex pipe?

 

checked it and its good

 

Take off the turbo and do a pull... sounds like it has a massive restriction in the piping somewhere, or it's only running on 3. You definitely shouldn't haven't to wait that long to build boost, that says that the turbo's working waaaaay too hard, or not being given enough gas to spin.

 

check the timeing belt and that it hasn´t jumped a touth

 

just an update, finally got the car to make the power it should. I unfortunately got to the point where I started changing out engine components that I knew no history on. (The car came into the shop not running). When I changed the distributor with a known good unit I really had my doubts it would do anything. The car drove beautifully and rev'd clean, it just wasnt doing what it should. Well, the new dist on and timed we immediately picked up about 70whp. I cleaned up the tune at that power level and 2 pulls later we were at 100whp over the original baseline.

Just thought Id post this up, definitely a first for me.

-bill

 

glad to see you fixed it man......So a bad distributor costed you 100whp?

 

That's very good to know. Many of us here wouldn't have thought of that..

 

Was the timing sync'd the entire time? I've seen ppl not do the hondata sync prcedure, where it locks the ecu to a set timing value and then set the dist, i've seen 40-70 hp jumps from this alone due to the timing being off.