Untuned i trapped about 94 mph with Falken Ziex 195/50/15.

Tuned i trapped at 96 mph but with Falken Azenis 205/50/15 which are a tad taller.
Im not sure if im accelerating faster with more power now but i spun alot more between shifts.

I peaked over 8700 rpms at the dyno and not sure if i should buy:

BFG drag R's in:

205/50/15
225/50/15
215/60/14

I need that 2.0 60' with the best top end and fastest acceleration.

B16 with Toda B cams

Thanks for any info

 

225's will be too tall for you deending on the tranny you are using....I would go with 205/50/15's....trapping at 113mph I was still in 4th in my ITR so I would say you are safe with those and they are a tad shorter to get you more top end and be sure your car has the power to push through them

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostR41 &raquo;</TD></TR><TR><TD CLASS="quote">225's will be too tall for you deending on the tranny you are using....I would go with 205/50/15's....trapping at 113mph I was still in 4th in my ITR so I would say you are safe with those and they are a tad shorter to get you more top end and be sure your car has the power to push through them</TD></TR></TABLE>

thanks for info. i got this tire info size.

i trapped 94 untuned with:
195/50/15 ---22.68"
i trapped 96 tuned with:
205/50/15 ---23.07"

here are more:
225/50/15 ---23.46"
205/55/14 ---22.88"
215/60/14 ---24.16"

Wouldnt the larger diameter give more mph and topend but slower acceleration?? I did spin alot with the 205/50/15's and my numbers werent faster, just mph was along with a better 330 foot.


Makes me want to run a 22" tire as opposed to a 23".

 

theres alot of factors that coulda changed your trap speed, besides even power and tire size. (but power is the most likely culprit!)

If u want to keep the 15" rim, then by all means you going to want to run a 205/50/15. If you are willing to step down to the 14"rim you could run the 205/55/14.

Both tires will be the same width, and also close to the same overall diameter. If anything the 205/55/14 will accellerate a lilttle quicker and it will def hook better because of the a thicker sidewall. You are looking at a 5% thicker sidewall than the 205/50/15's.

if you are only dragging on these tires not scca or any road racing then get the 14's. The extra sidwall will allow for flex (think of how a slick looks as its being launched) this should make it easier to cut those 2.0's your lookin for. Good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Used2beAb16 &raquo;</TD></TR><TR><TD CLASS="quote">theres alot of factors that coulda changed your trap speed, besides even power and tire size. (but power is the most likely culprit!)

If u want to keep the 15" rim, then by all means you going to want to run a 205/50/15. If you are willing to step down to the 14"rim you could run the 205/55/14.

Both tires will be the same width, and also close to the same overall diameter. If anything the 205/55/14 will accellerate a lilttle quicker and it will def hook better because of the a thicker sidewall. You are looking at a 5% thicker sidewall than the 205/50/15's.

if you are only dragging on these tires not scca or any road racing then get the 14's. The extra sidwall will allow for flex (think of how a slick looks as its being launched) this should make it easier to cut those 2.0's your lookin for. Good luck.</TD></TR></TABLE>

thanks for the info

really helping me out here.
yeah, i seemed to be able to pull the same times with alittle less power with the 195/50s compared to the 205/50s with more power, although you said there are lots of factors involved.

i think im just gonna get the 205/55/14s. Nitto NT-555R comes in 205/55/14 and im wondering if its worth it and im able to mount them on a 14" steelie which would be 5.5" wide?????

 

Do u know if the bfg drag radials come in the 205/44/14's or is it just the nitto 555r??

You can run the 205s on steelies they will work just fine for your application. ( you do drive an EM-1 cooope i believe?

I think that would be a great setup, and u could slap em on whenever u need em.

Would you be driving this setup on the street occasionally?? I am asking because from my understanding, the nitto's will hold up a little better if used on the street some, (not daily driving though.) But if u were strickly going to use these tires at the track u might be better off with the bfg's. They will wear faster, but ive noticed that alot of people are having better luck getting 1.9x 60ft times with them even in 2,500 lb cars!

But if they only make the nitto int eh 14 then by all means i would just go with that. Good luck, let me know how it turns out i am interested int he results.

 

Another thought, i dont know how streetable u want the tires to be but if i know that M+H makes a streetable slick (dot approved) thats like a 205/65/13 or something.

I talked with john and M+H (from this board) and he said that they will work on a 13" steelie. The only problem is i believe that they will not fit on an EM-1 because of brake caliper clearance.

I have had my car sitting on 13" steelies in my garage when i had my wheels powder coated, but i never tried to move the car so i dont know if they would work or not. You may even be able to get a spacer or something to get them to work. It would be intersting, and i know these slicks are about the same price as the radials and they should hook even better and still be streetable. I would like to see how an N/A si hooks up with them.

might even want to look at those, or talk to John at M+H from this board and he could setup u up. All u need to do is find out if u can get 13" steelies to work on the car cuz i know that the slicks work with the steelies.

 

I think the M&H's will be too tall

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Used2beAb16 &raquo;</TD></TR><TR><TD CLASS="quote">Another thought, i dont know how streetable u want the tires to be but if i know that M+H makes a streetable slick (dot approved) thats like a 205/65/13 or something.

I talked with john and M+H (from this board) and he said that they will work on a 13" steelie. The only problem is i believe that they will not fit on an EM-1 because of brake caliper clearance.

I have had my car sitting on 13" steelies in my garage when i had my wheels powder coated, but i never tried to move the car so i dont know if they would work or not. You may even be able to get a spacer or something to get them to work. It would be intersting, and i know these slicks are about the same price as the radials and they should hook even better and still be streetable. I would like to see how an N/A si hooks up with them.

might even want to look at those, or talk to John at M+H from this board and he could setup u up. All u need to do is find out if u can get 13" steelies to work on the car cuz i know that the slicks work with the steelies. </TD></TR></TABLE>

damn man.........thanks for the help again.
i took your original suggestion and thought about it. i did order a set of nitto555R' in 205/55/14 last night. now i just need a set of civic ex rims or something.

i looked at all the sizes i could go with from bfg and nitto. i did not find a BFG 205/55/14. after calculating the tire diameters with the different rims and tires sizes, i found that 205/55/14 is 22.88" which is perfect to try and run that size. i did not want to run 23 inches which would be a 205/50/15.

as far as BFG vs NITTO, i like to try things on my own really. I actually got grilled by my friends last night and how im stupid when i told them i got the NITTO drag r's. LOL

my friend was telling me BFG makes a 205/55/14, but i know he was saying that without proof, because everyone knows best
yeah...yeah..

 

2 reasons why i got drag rs on 14s and not slicks for my setup:

1. i dont believe in internet rumors about "oh, your gonna break your axles with slicks"
but since i might be selling my entire motor, i dont want to possibly weaken the diff with slicks.

2. i just cant afford 13" drag rims and slicks at this time.

my Si weighs 2460 with me in it.
I dont drive it much at all.
But since i live close to the track, it would be nice to put the wheels on at home and drive with them to the track.

thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostR41 &raquo;</TD></TR><TR><TD CLASS="quote">I think the M&H's will be too tall</TD></TR></TABLE>

yeah, it really depends what the size is. if its 205/60/13, it comes to 22 inches.

here is a TIRE DIAMETER CALCULATOR:
http://www.net-comber.com/tirecalc.html

pretty helpful

 

Good luck with the nittos. Yeah im not sure if the M+H slicks were 60 series or 65 series.

I'd like to hear the results, what kinda 60's were u cutting now w/ street tires?? Mine are horrible, heh.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Used2beAb16 &raquo;</TD></TR><TR><TD CLASS="quote">Good luck with the nittos. Yeah im not sure if the M+H slicks were 60 series or 65 series.

I'd like to hear the results, what kinda 60's were u cutting now w/ street tires?? Mine are horrible, heh. </TD></TR></TABLE>

thanks

i ran a best of 2.29 on falken ziex 195/50/15 at 18 psi.

i ran a best of 2.26 on falken azenis 205/50/15 at 18 psi. the azenis are pretty much bald and were only good for the first run. after that, they got so damn greezy and slimy i couldnt run better than 2.4 60'

im gonna put the 195s back in the front mainly because they are actually 22" tall and the azenis were 23".

but im hoping for those drag rs to come in on friday, mount those ******* and run on saturday

 

Cool, make sure u post the results if u get on in time for the track. im curious how those nittos r gonna do. 2.2's arent too bad for a b16 powered EM-1. About all u can really hope for out of a street tire.

I know when i still had the 1.6 in my car i could never cut a 2.2. My previous car i could get 2.1's but the best i ever got was a 2.4 60' out of the si. It seemed like it would either bog out, or spin too much, i could never find that happy medium.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Used2beAb16 &raquo;</TD></TR><TR><TD CLASS="quote">Cool, make sure u post the results if u get on in time for the track. im curious how those nittos r gonna do. 2.2's arent too bad for a b16 powered EM-1. About all u can really hope for out of a street tire.

I know when i still had the 1.6 in my car i could never cut a 2.2. My previous car i could get 2.1's but the best i ever got was a 2.4 60' out of the si. It seemed like it would either bog out, or spin too much, i could never find that happy medium.

</TD></TR></TABLE>

yeah, i couldnt get better than a 2.3 for a while. then i just dropped the 195s to 18 psi and was able to run consistent 2.29s launching at 4k -4.5k.

my goal was to run a 13.9 with this setup. i drove the car hard to get a 14.5 untuned @ 94 mph with 2.3 60'.

then i ran a 14.5 again tuned with lots of spinning in 2nd gear.

im praying that i can run a 13.9 with a 2.0 60' since now im tuned and trapping at 96mph.
at least a 14.0 with 2.1 would be nice. im kinda scurred to that i wont with 2 weeks left in the season.

 

what kind of weight reduction do u run at the track?? if your trapping at 96 mph your prolly gonna need like a 1.9 60 to get into the thirteens. If u could get your trap up to 98-99 mph you could do it with a 2.1

Good luck, i have watched a 174whp integra run a 13.9@99mph with 2.2 60fts.

Had an ls/vtec w/ stock cams though, about the same weight as your car, just had some more torque, and same tranny. But it ran on 17's

I think u can do it, but you might have to get that trap speed up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Used2beAb16 &raquo;</TD></TR><TR><TD CLASS="quote">what kind of weight reduction do u run at the track?? if your trapping at 96 mph your prolly gonna need like a 1.9 60 to get into the thirteens. If u could get your trap up to 98-99 mph you could do it with a 2.1

Good luck, i have watched a 174whp integra run a 13.9@99mph with 2.2 60fts.

Had an ls/vtec w/ stock cams though, about the same weight as your car, just had some more torque, and same tranny. But it ran on 17's

I think u can do it, but you might have to get that trap speed up.

</TD></TR></TABLE>

yeah i see what your saying. when i break it down though, i was able to run a 14.5 untuned with a 2.30 60 foot. and i trapped at 94 mph.

its wierd with the trap speed though. i have a fat powerband, but its not spiky like you would see with jun cams. it just pulls and pulls. makes me want to go to 9500 rpms

but now tuned, i trapped at 96 mph and did spin a whole lot in second. the 14.5 came pretty easy which is a good thing.

my trap keeps going up as my 60s get better. could wheel spin between shifts kill the trap speed?

 

How much were u spinning going into 2nd gear? I've noticed that if i shift w/o any spin and maybe just a little chirp my trap is lower than if i spun the tires for 5-10 feet. (this was when it was a b16) Also the et was lower when i got a lil wheelspin.

But I'm sure if the wheels were spinning enough that you had to lift the throttle at all it would def lower your traps. I found the best way to go into second is just few feet of spinning seems to help the car rev up quicker in 2nd. I can only see it being bad if u have to lift throttle.

Also, what are u shifting at? Didnt you say that peak power was at 8,700 rpms? If you are making power that high i would be shifting near 9,500 on the 1-2 shift and probably atleast 9,100 on the 2-3.

I guess you would have to look at a dyno graph to really tell but for those short gears i wouldnt shift at peak i would def go higher. Also if ur having problems with excessive wheelspin in 2nd gear, shifting a little higher may land you past your peak tq and you wont have quite as much spin, but the time spent in 2nd gear will be the same.

The best thing to do is try it out and mess with diff. shift points and compare 60', et, and trapspeed.

 

Also another thought on getting that trap speed up. Do u run with the exhaust on?? I remember a post around the beginning of this season i believe one of the guys who always posts in the N/A forum ( I think it was on clubsi) was running 14.40's w/ slicks and then the same night he dropped his exhaust and hit a 14.20, i believe these were all at 96mph. He might have gained a mph or so w/o the exhaust but i cant remember.

It cant hurt, and even if it doesnt give u more than 1-2 hp it still makes the car lighter. Prolly takes away as much weight as pulling the pass and the rear seats anyhow. good luck, btw did u get the tires in today?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Used2beAb16 &raquo;</TD></TR><TR><TD CLASS="quote">Also another thought on getting that trap speed up. Do u run with the exhaust on?? I remember a post around the beginning of this season i believe one of the guys who always posts in the N/A forum ( I think it was on clubsi) was running 14.40's w/ slicks and then the same night he dropped his exhaust and hit a 14.20, i believe these were all at 96mph. He might have gained a mph or so w/o the exhaust but i cant remember.

It cant hurt, and even if it doesnt give u more than 1-2 hp it still makes the car lighter. Prolly takes away as much weight as pulling the pass and the rear seats anyhow. good luck, btw did u get the tires in today?</TD></TR></TABLE>

hey, thanks for all that info

i dont like to shift high if i dont have to, but it really sucks i only have a few more times at the track til the season ends to play with shift points. however, even untuned it helped me to shift high at 9k and last time at the track being tuned, after every run, i was telling myself to shift higher next run. but the highest was 9000 on the dot on my vafc. my tach shows 300 rpms higher than the vafc.

yeah i peaked pretty high at the dyno. i broke wheel in 2nd gear enough where i had to blip off the throttle everytime ******* bald azenis

the only things that im running different than the dyno is no intake filter although first run i ran with it. the motor was going haywire with the smallest a/f adjustments at the dyno, so i kinda wanna keep the exhaust on, you know.

i got the tires in today and some 14" steelies. hopefully i can mount them tomorrow and it doesnt rain.

 

13.9 is possible if you get an awesome 60', i was running 14.5@96 with 2.3 60's, now im down to 14.2@94.7 with a 2.207 60'.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bserieskllr &raquo;</TD></TR><TR><TD CLASS="quote">13.9 is possible if you get an awesome 60', i was running 14.5@96 with 2.3 60's, now im down to 14.2@94.7 with a 2.207 60'.</TD></TR></TABLE>

nice man!!!! yeah thats like what i had. how did you cut down .3 off the top with only .1 faster on the 60' though??

where was the biggest difference? in your 330 foot? different shiftpoints??

thanks