ok i got a b16 in my rex and its hella slow and i dont kno whats wrong....im gonna try to give all the info i can so someone can help me...aem cold air, dc header, skunk2 manifld, edelbrock tb, aem fuel rail, act 6 puck, act streetlite flywheel, ctr pistons (.25 oversized). i think thats about it...i get smoked by all my friends sohc vtec's which are all stock...the problem im having is the top end, the vtec isnt pulling at all it engages but feels slower when it kicks in....no ecu codes and recent tune up...help please

 

did u buy the car with everithing in it? or did you install all the parts?

 

Sounds like you need to have your car tuned....

Blaze

 

1. what trnny do you have?
2. what size wheels/ how good of rubber do you have?
3. Are you just sitting there spinning them?

 

All those mods and no fpr and chipped ecu?

 

damn dude i have the same problem if you know whats going on let me know cus my friends sohc vtec's also keep up with me till im in like 4th gear so if you find out whats wrong let me know......

-stupid b16

 

I had the same problem. When my vtec kicked in it didn't go anywhere, it would actually slow down. Turned out the cat was clogged, might want to check that.

 

ey how much for your ecu?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by robcrx510 &raquo;</TD></TR><TR><TD CLASS="quote">the vtec isnt pulling at all it engages but feels slower when it kicks in</TD></TR></TABLE>
Are you sure it is engaging?

 

swap the distributer with a known good one. easy way to test a whole bunch of stuff at the same time.

THEN get uberdata and get things tuned.

 

Definately get an ECU you can probaly find em on egay or try the for sale ads. Then most def need to get it tuned.

 

I have a b16 swap parting out

 

I have a B20 Longblock for sale and some b16 harness for sale?

 

MrEF8 this is not a MrForSale thread.

 

You have all the mods that help get more air into the engine but nothing that injects more fuel to match. How about a good eprom tuning or AFPR?

 

Something is definately wrong if you are getting outran by sohc vtecs. My bro has a 93 HB si and I have a 91 CRX si with a b16 and I/H/E and I outrun him by like 5 caars by the end of 3rd. His car can outrun ex civics. I would try the ecu and getting the car tuned.
later
Matt

 

even thought the original poster has'nt responded to anything yet...but i'll go and ask more questions anyway.

tire/rim size will make a large difference. my b16a on my rex dropped .7 of the 1/4 with just a tire/rim change, i ran 16 flats all over, new tires/rims....instant 15.3's. yes it could be technical problem...but lets check over teh ovious stuff first :D

 

as stated it could be the cat...i have the same problem right now...mine is clogged to HELL!

 

ok sorry i took so long but ill try to answer some of ur questions.....i had all the parts installed so no i didnt buy it like that....i was thinkin of some fuel upgrades might solve my problem but i wasnt sure...im using the b16 tranny with short gear ratios...195/60/14 brand new tires....the tires are falken ze512's....ill check into that cat thing though

 

was the b16 an automatic.. or did it come 5 spd, cuz cams are diffrent in automatic. make em hella slow.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89LScrx &raquo;</TD></TR><TR><TD CLASS="quote">was the b16 an automatic.. or did it come 5 spd, cuz cams are diffrent in automatic. make em hella slow.</TD></TR></TABLE>

very good point, was the swap you bought a complete with manual tranny??

 

complete with 5 speed manual tranny......replacing the cat seems to be a good idea, my car is hella quiet for having no muffler so the cat replacment seems logical...i kno the vtec is kickin in cuz i can hear it change over and the car feels slower

 

My stock B16A works sohc vtecs so you have a problem.

Things to check: (some mentioned above)
Compression test.
LEAK DOWN (more accurate than compression test, allows you to locate leaks).
Possible Auto engine


Things to do:
Tune it up (plugs, valve adjustment, everything)
Replace cat with test pipe
Get it dynoed. Seriously. See where it's falling off.
Get tuning. I reccomend an OBD-I conversion with Uberdata.

 

dont u have 17's? i give this a bumb so you can fix it

 

Dude, get it tuned. Spend the money and get it tuned, then you should beat your friends. Theoritically.