Tuning Problem on turbo b16a2!!!!
#1
Honda-Tech Member
Thread Starter
Tuning Problem on turbo b16a2!!!!
Its a b16a2 with 9:1 je pistons, eagle rods, acl bearings, arp studs, rev valvetrain and gsr cams ( supposively). the turbo is a 50 trim with a 50a/r cold and 48 a/r hot.
For some reason when the car reaches the vtec engagement point the car loses power instead of gaining. The timing is perfect. Now my question is will this happen if you use non vtec cams on a vtec motor???? Im really concerned i bought the cams for 30 bux off of ebay.
thanks
For some reason when the car reaches the vtec engagement point the car loses power instead of gaining. The timing is perfect. Now my question is will this happen if you use non vtec cams on a vtec motor???? Im really concerned i bought the cams for 30 bux off of ebay.
thanks
#2
Honda-Tech Member
Join Date: Dec 2004
Location: Chicago area, us
Posts: 2,636
Likes: 0
Received 0 Likes
on
0 Posts
Re: Tuning Problem on turbo b16a2!!!! (92redhatch)
First off what tuning program are you running
And as far as the cams, that would worry me right away. I wouldnt trust much from ebay...
And as far as the cams, that would worry me right away. I wouldnt trust much from ebay...
#3
Honda-Tech Member
Join Date: Jul 2004
Location: VA, USA
Posts: 9,846
Likes: 0
Received 0 Likes
on
0 Posts
Re: Tuning Problem on turbo b16a2!!!! (92redhatch)
Definately sounds like a cam problem.
If the cams are non-vtec, at the crossover point, the ECu would dump in extra fuel and timing and such to make power with the VTEC cam, but without the extra lobe, it would lose power, like you stated happened.
I'm not a B-series guy, but shouldn't there be a definate way to see a two-lobe vtec cam from a regualr non-vtec cam?
If the cams are non-vtec, at the crossover point, the ECu would dump in extra fuel and timing and such to make power with the VTEC cam, but without the extra lobe, it would lose power, like you stated happened.
I'm not a B-series guy, but shouldn't there be a definate way to see a two-lobe vtec cam from a regualr non-vtec cam?
#5
Honda-Tech Member
Thread Starter
im using crome pro. Im not the tuner. But the tuner is stumped. I believe its the cams that are my problem but i wanted to see if anyone has expierienced the same problem. I broke my oil pump a while back and while i was changing the pump i also changed the cams and thats when the problem started to happen. Has anyone had this problem before?
#6
Honda-Tech Member
Join Date: Dec 2004
Location: Chicago area, us
Posts: 2,636
Likes: 0
Received 0 Likes
on
0 Posts
Re: (92redhatch)
Honestly everything seems to lead to the cams, you can always put back in the stock cams and see if everything is back to ok, if not i would lean towards the tuner.
#7
Honda-Tech Member
Thread Starter
its definately not the tuner. he tuned a car right before mine with a pretty similar setup with no problems. My car has had this problem since i changed the cams and it was untuned.
Trending Topics
#8
Re: (92redhatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch »</TD></TR><TR><TD CLASS="quote">My car has had this problem since i changed the cams</TD></TR></TABLE>
Sounds suspicious. Maybe check out the clutch? I doubt it would be the cams though, it doesn't sound like it.
Sounds suspicious. Maybe check out the clutch? I doubt it would be the cams though, it doesn't sound like it.
#10
Re: (92redhatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch »</TD></TR><TR><TD CLASS="quote">not the clutch</TD></TR></TABLE>
I didn't think I needed to write how completely sarcastic I was being with my last post. Car ran OK. Changed cams. Car runs like ****. It's pretty obvious.
I didn't think I needed to write how completely sarcastic I was being with my last post. Car ran OK. Changed cams. Car runs like ****. It's pretty obvious.
#12
Re: (92redhatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch »</TD></TR><TR><TD CLASS="quote">so u think its the cams?</TD></TR></TABLE>
It makes sense if your car was running fine before and the only thing you swapped was the cams.
It makes sense if your car was running fine before and the only thing you swapped was the cams.
#14
Honda-Tech Member
Re: Tuning Problem on turbo b16a2!!!! (92redhatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch »</TD></TR><TR><TD CLASS="quote">For some reason when the car reaches the vtec engagement point the car loses power instead of gaining. The timing is perfect. Now my question is will this happen if you use non vtec cams on a vtec motor???? Im really concerned i bought the cams for 30 bux off of ebay.
thanks</TD></TR></TABLE>
You get what you pay for. You can distinguish non-vtec cams from vtec cams due to the number of lobes on the camshaft.
vtAk
nonvtAk
http://www.cranecams.com/image...).jpg (not resized)
thanks</TD></TR></TABLE>
You get what you pay for. You can distinguish non-vtec cams from vtec cams due to the number of lobes on the camshaft.
vtAk
nonvtAk
http://www.cranecams.com/image...).jpg (not resized)
#16
Honda-Tech Member
Join Date: Jun 2004
Location: Dont Steal My Car, Ct, USA
Posts: 2,852
Likes: 0
Received 0 Likes
on
0 Posts
Re: (92redhatch)
maybe they are some super radical vtec lobes and u need to set the timing and fuel accordingly.
And make sure ur cars ignition is in sync with the tuning software also.
16degrees on the light means 16 degrees at the first colum.
And make sure ur cars ignition is in sync with the tuning software also.
16degrees on the light means 16 degrees at the first colum.
#19
Honda-Tech Member
Re: (92redhatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch »</TD></TR><TR><TD CLASS="quote">has anyone had this problem besides me?</TD></TR></TABLE>
https://honda-tech.com/zerosearch
Search... it's an awesome feature. Maybe your timing belt is off a tooth? Post pictures of the dyno chart... that would help a lot.
https://honda-tech.com/zerosearch
Search... it's an awesome feature. Maybe your timing belt is off a tooth? Post pictures of the dyno chart... that would help a lot.
#20
Honda-Tech Member
Thread Starter
ive searched. The timing belt was off by a tooth and we fixed it and re dynoed it and it still has the same problem we just picked up 10whp.
#21
Honda-Tech Member
Thread Starter
i was just told that my cams have to be vtec cams because if they were not vtec cams they wouldn't fit on my b16. So what can my problem be???
Someone here on honda tech had a similar problem because the put the intake rocker assembly on the exhaust side and vice versa but i was told thats not possible on a b series what do you guys think?
Someone here on honda tech had a similar problem because the put the intake rocker assembly on the exhaust side and vice versa but i was told thats not possible on a b series what do you guys think?
#23
Honda-Tech Member
Join Date: Oct 2004
Location: RIP Duke of Turbo, CA
Posts: 1,832
Likes: 0
Received 0 Likes
on
0 Posts
Re: (nonvtecD)
Hehe, yea it would be pretty hard to put non-vtec cams in there and they are obviously different from the number of lobes as stated. Post the dyno sheet, bin file and setup list then I'm sure you will get some more insightful responses.
Also like was stated you can just swap in some stock cams and see how it does with those, that would eliminate or reaffirm the "cam" variable. GL.
Modified by KeyserSoze at 5:04 PM 2/1/2007
Also like was stated you can just swap in some stock cams and see how it does with those, that would eliminate or reaffirm the "cam" variable. GL.
Modified by KeyserSoze at 5:04 PM 2/1/2007
#25
Honda-Tech Member
Join Date: Oct 2001
Location: felton, de, usa
Posts: 4,665
Likes: 0
Received 0 Likes
on
0 Posts
Re: Tuning Problem on turbo b16a2!!!! (92redhatch)
The only thing i could think of was valve adjustment
maybe one is hanging up or something
hope this helps
d
maybe one is hanging up or something
hope this helps
d