When i go to the track I see crx's running anywhere from 15.2-13.9 @ 91-100mph.

I know first hand a guy who had a b16a 1st gen motor with the ys1 tranny I/H/E in an HF body running 13.9 @ high 99 mph he then put a 100 shot on it and ran 12.9s @ 110-111.

Now my guestion is why are some guys only running low 15s with there b16crx's? Ive seen plenty others go mid 14s all day wich i think is the norm for a b16 crx.
Im thinking of buying this 91 si and putting the b16 in it. I dont want to do this if im only going to run low 15s - high 14s. I mean **** my old 99 si with only I/H/E (gutted cat) went 14.7 @ 93.3.

So please can someone clear this up for me. I would expect at least low 14s from a swap such as this considering my si pulled high 14s and weighs much more than a crx.

Thank you.

 

There is so many factors. The gearing that they are running, there tuning, weight of there car, traction, clutch, elevation, temp, ect.

 

first off not all b16's are created equal. and not all mods actually help with hp. oh and some people prolly cant drive for **** haha. theres tons of factors such as temperature out and what tires and if they have super heavy wheels blah blah blah, could go on forever. but im with you in thinking most b16 swaps should prolly be mid 14-ish with a weekend warrior behind the wheel.


Marcus

 

probably has alot to do with weight of the car 90 and 91 si's are pigs compared to 88 89 hf's , driver ability can he drive good , car setup good tires , dr, slicks , or all season tires , suspension , tuning/hp mods , and weather . is the car gutted , and what
tranny the car has . hope this helped

 

you guys beat me to it lol took to long typing

 

The cars I was talking about are all street tire non drag radial except for the 12.9 pass wich was on drag rads.

So if i get the swap in a 91 si (wich is what im looking at cause the car is in good condition and is only 600 bucks with no motor) and everything works the way its suppoesd to i should expect 14.5 area with I/H/E? or should I expect a lil more?
by the way i did a h22 4 door civic but had shifter problems so i sold the car a nd still have the h22 set up but i cant find a BOLT IN kit. All kits Ive seen are weld in on the pass side tranny mount. But the guy im dealing with said he will trade my h22 set up for a complete b16a set up for 88-91 crx/civic.
What do you guys think?

Thanks you

 

well for the first part of your question about what to expect , again it all depends .
The 91 si is the heaviest of the crx's but if your a decent driver , and all the stuff we posted above i dont think mid to high 14's is out of the question . Dont be upset or think something wrong with the car if you dont get that when u get the car to the track , youll just have to get used to it , but from your first post doesnt seem like your a first timer and u already know this . goodluck

 

h22 mount kit= explicitspeed somethin or other, ive seen it in his sig and looked at his site. find him here on ht. if i had a choice of h22 or b16. id go h22. seems like your more interested in 1/4 mile by your question so the "weight" factor isnt a problem for you.

Marcus

 

i agree you will see better times with the h22 than a b16 (both stock) there isnt to much of a weight difference in the motors and the extra power makes up for it . I hope thats what u ment about the weight comment , bc weight is a big deal in drag racing 88 hf weighs roughly 1890 lbs and a 90-91 si is pushing 2200 every hundred pounds is roughly a tenth of a second .

if you were autocrossing ya you would loose handling performance bc of the extra weight in the front ,

 

tires would make the difference, you said dot tires there are a lot of dot tires from sticky to rock hard, im sure some kumho's with a tread wear of 40 would hook up better than some all season 500 treadwear, that could be the difference of a 1/2 second

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by elrandeeto &raquo;</TD></TR><TR><TD CLASS="quote">i agree you will see better times with the h22 than a b16 (both stock) there isnt to much of a weight difference in the motors and the extra power makes up for it . I hope thats what u ment about the weight comment , bc weight is a big deal in drag racing 88 hf weighs roughly 1890 lbs and a 90-91 si is pushing 2200 every hundred pounds is roughly a tenth of a second .

if you were autocrossing ya you would loose handling performance bc of the extra weight in the front , </TD></TR></TABLE>


ya the quotations were meant for, the quote "huge weight difference". id rock a h22 crx any day. but thats if i already had one like said poster. my next crx will be an sir so ima boost that bitch and keep it stock otherwise.

Marcus

 

you can also call hasport, i know they had some awhile ago in stock.....helped a friend with his h22 swap in a crx and thats where he got his.


as for the qeustion...like everyone else says it just has way to many factors to give an exact answer.

 

Crappy driver?

 

the h22 is a graet motor for drag put the battery in the hatch and it will help with that "huge weight diffrence" as far as slow b16crxs that is what i have but im workin on gettin it going. also i rememberreading that hasport makes a mount kit for h22 in crx but have patcience puttin in the beast(H22), you will also spin the tires alot so get an lsd.

 

Is 15sec 1/4mile slow car? Anything under that is fast, but dont know about your requirements.

Actually its quick. The stock Civic Type R ('04 K20A2) goes for 15.5. Or thats what honda says.

 

Good Info

 

The only way I'd take a b16 over an h22 is if it was built & b00sted.

As for the title question, as said - many factors. B16's into a crx is usually very cheap, which leads to them being a kid's 1st project. Guys under 20yrs aren't known for babying their cars. There's also the effect of worn parts. Too much blowby or a leaking cylinder leads to noticable power reduction.

There's also the fact that most people, when they have enough cash, will opt for a b18 or a turbo. Either that, or make a poor-man's ctr out of a b16a like a friend I know.

 

i believe an H22 CRX with I/H/E ran about... 14.1 thats not bad. but if you want boost, you might reconsider unless cash isnt a problem. if you go H22+boost, you are going to wanna have it sleeved.

 

Reasons for slow B-series swaps.

1. Launching a B-series CRX is actually not very easy. The combination of FWD, a short wheel base, and high power-to-weight ratio generally makes for poor launches.

2. Bad swaps. When doing swaps, people tend to cut alot of corners. After all, they just spent over $1000 on the changeover. And they just don't have the cash to spare no expense when it comes to doing the swap. Also, people often do things like run the wrong ECU. Using a stock SI ECU with an RPM-activated switch to control VTEC is a sure recipe to a slow car.

3. Bad motors. Sometimes, the motors people buy are just beat.

4. Worn/Bad suspension. Okay, this should go under number one. But this is a MAJOR cause of poor launches. Worn bushings create slop. And additional engine weight causes excessive negative camber in front. Buth hurt launches. Cheap or worn tires don't help.