First off here is my setup.
USDM B16 @ ~10.8:1 CR with;

Skunk2 Stage1 Cams & Cam Gears
Alaniz Street Master Head Work
Omnipower valvesprings, retainers, & valves
Mugen headgasket
Apex N1 exhaust
AEM 3" CAI
RMF 4-1 Header
SMSP 300 Spriral Cell Cat
ITR throttle body
Skunk2 Intake Manifold
Hondata IM gasket
RM Sparkplugs
Hondata s200

Stock tranny

Made 181.5whp, 119wtq.


Blue line

Basically my car is an '00 Civic Si. Just pulled the spare tire & passenger seat for the runs, other then that there is no other weight reduction.

I run the car on 205/55/R14 Nitto Drag Radials.

Here was my best run today.

react. .356
i1 2.328
i2 6.410
i3 9.817 @ 71.399mph
i4 12.720
ET 15.315 @ 89.915mph

Pretty dissapointing to me. Now to be fair I do race at lacr which is at 2700' elevation. So if u do the altitude conversion then it would be a....
14.855 @ 92.613mph if it were at sea level. Little better, but still not what I expect it to run.

I'll be the first to admit that my 60' needs improvement. However its hard to get much better at lacr cuz the track is not the greatest, its covered in dust always, & they almost never put down VHT (i think thats the name) so its not too sticky off the line. But i was a little off today, on a better day I get it down to a 2.2x.

The part Im more concerned about is my mph. It just doesn't seem high enough to me for the amount of power Im making.

Does the elevation play a larger role on this then the altitude conversion factor suggests?

Or is my clutch not up to the challenge? Its the stock clutch. But it doesn't have any noticable slip yet. Obviously it doesn't grab as hard as a better clutch would, but would this really make of much difference?

Or my last thought is just that my car is too heavy for a little 1.6L. But still, i just expect quicker times then this.

So could u guys please help me out. Give me some suggestions on what u think. Do u think my times are ok for whats done or should i be expecting much better?

Just to give u an idea of how other cars run at lacr. My friend came up with me too. He has a 00 Si also. Very similar mods to mine except he's on bc3 cams- 178whp 122wtq for him. He also has an itr fd & lsd.
Best he could manage was a 15.712 @ 87.384mph on street tires. Or converted for altitude, it is a 15.241 @ 90.005mph.

Thanks for any help!



Modified by strsi at 12:34 AM 9/10/2005

 

launch a little higher . in the 8k range get your 60 ft down to 1.8 and try different size slicks

 

i lauched at 7.5k on that run. It never droped below 6.8k after i let out the clutch. hooked up pretty good to. its just hard on this track to get much traction off the line.
What about my top end though?

 

What's this conversion calculation you're doing? Have you ran your car while stock or less modded at this drag strip? It's possible that the conditions just weren't in your favor that day. Also, on drag radials, you should be able to cut a pretty good 60', I'm one tenth behind you on dead ES100's. Maybe try going to a different, lower elevation place? In any event, don't give up...

...I feel your pain on the less than great times, I couldn't break into 14's last year; which was total garbage for all the things I had done to my car; all that changed this year was tuning, an ITR tranny, and losing 60 lbs, but I dropped my ET by .6 sec.

EDIT - totally forgot to comment on your trap.. can't explain anything but I'll agree that it should be higher.

 

not sure which conversion calc it is. lacr provides the #'s on its website so where ever they get it from.

conditions were ok today. when i went a week ago w/ the same setup the best i could manage was a 15.6 @ 87.

Also if u guys look at my dyno, the green line was my old tune. Same stuff except DC header, no cat, & j's intake. Made 178hp then.
With that setup my best run was...
react. .315
i1 2.282
i2 6.422
i3 9.833 @ 71.659
i4 12.715
et 15.293 @ 90.208mph

so converted it's a 14.83 @ 92.91mph.

Yea, its still proving to be faster then my new setup, by a little. But yea, i can gain a little on the 60', but the top end mph just doesn't seem to be where it should be.

 

HAHA...launch a little higher..jeeezzz he is on drag radials so he is not going to hit a 1.8 60 foot.

If you want to stick with the drag radials you will just have to practice your launch. Drag radials are pretty much like running on street tires. You just have to know how to get out of the hole with them with the right amount of power. I highly doubt you would be able to hit under a 2.0 60 foot time with them.

You might also want to consider getting a real set of slicks so you can launch a lot harder. That would allow you see the max potential of your car. A set of M&H 22x8x13's would be nice on your car!!

John

 

is it your first time at the track???

you need to practice more...

contrary to what you might beleive, drag racing is hard and your not going to run your best time on your first couple of runs...

you couldnt get in a fast *** car and run the same times around a road course as the guy who has been driving for 10 years...

so keep going and your times will come down...

 

since you dyno'ed on a dyna pack id say your hp is near 160's. your mph proves that. a car with 180 hp is going to get more mph than that...even after you do the altitude conversion its still low. if you can bring your 60ft down to a 2.0 id say you're running about what you should be.

 

No. this is prob like my 30th time at the track. I’m fairly new to using the drag radials, but I think I’ve pretty much figured them out. Honestly I own almost every car I run for at least the 60’. So I think I’m doing pretty good on that, like a said on a good day I can manage a 2.2 60’. Its pretty hard to get much better at lacr cuz they do gravel mining next to the track, so that covers the track in a heavy layer of dust, plus they never spray down vht so the track is not sticky at all.

I’m more concerned with the mph. Even after the altitude conversion all I trap is 91-92mph. For how much power Im making I’d expect it to be quicker then that. Other people who post their times seems to be traping much higher mph’s then me with less or similar power as me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by strsi &raquo;</TD></TR><TR><TD CLASS="quote">I’m more concerned with the mph. Even after the altitude conversion all I trap is 91-92mph. For how much power Im making I’d expect it to be quicker then that.</TD></TR></TABLE>
dyna pack tend to read higher than dyno jets, depending on which one you go to.

 

yea, they do tend to read a little higher. but i really doubt its enough to put my power in the 160's like u suggested.

 

try to bump up ur compression, throw some itr or ctr pistons in that ****... ull see more hp outta those cams and other intake, header parts

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Disco Monkey &raquo;</TD></TR><TR><TD CLASS="quote">
dyna pack tend to read higher than dyno jets, depending on which one you go to.</TD></TR></TABLE>

it still doesn't change the fact the motor's making 200 hp and his 1/4 is slow. Hows your alignment settings and your suspension.

181whp is really weak for that mod list I made 170whp and 120 lbft on that same dyno without the any of the cams, gasket, headwork you have listed so maybe do a compression and leakdown check. You might have just run the motor in to the ground before and after your dyno and this time is a result.

Also you may be launcing to high, on 3 back to back runs I found from lowering my launch from 7000 to 6500 on RA-1's I gained another couple of 10ths. You can always lose some weight. You can get 8 pound sealed batteries from pep boys for 60 bux. I use one and with power windows and a stereo have no problems

 

I really doubt u made 170 w/ no cams or headwork unless ur running some serious CR. But thats besides the point.

I have tried to launch lower. However that generally results in my rpms droping too low & the engine boging. My best 60''s come from about a 7k lauch.

 

Corrected, that trap speed seems low for 181whp.

I had 164whp and trapped 93 in my '98 coupe.

 

alignments good. just had it done a few weeks ago. 0 toe, -1.2 camber up front.

CR is fine. Did a CR test not to long ago.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D-Rob &raquo;</TD></TR><TR><TD CLASS="quote">Corrected, that trap speed seems low for 181whp.

I had 164whp and trapped 93 in my '98 coupe.</TD></TR></TABLE>
Thats exactly what I'm talking about. U made 164whp w/ a b16 in ur coupe. So its about the same weight as mine (unless u did some serious weight reduction).

I'm making a good amount more power then u (It doesn't matter dynapack or not, even on a dynojet it would still be more then 164). Yet u traped a speed 1mph quicker then me after mine is corrected for altitude.

How is this. Obviously it isn't the weight of my car that matters to much cuz ur coupe weighs about the same as mine.

So that only leaves two things I can think of. Either....
1. The elevation of the track plays a much bigger role then the altitude conversion calc suggests.
2. Or my clutch cant handle this power. Kind of a long shot cuz its doesn't slip or anything. But it is a stock clutch & it obviously doesn't grap as hard as other clutches.

I'm leaning more towards the elevation being more of a factor then suggested. Since my friend could only run a 15.7 w/ 178whp on his coupe.

But i really dont know. I really want to get over to fonatana to race so I can see how i run there since its lower elevation. Thats quite a drive though. BUt it will be worth it if it proves elevation is worse then the conversoin suggests.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by strsi &raquo;</TD></TR><TR><TD CLASS="quote">I really doubt u made 170 w/ no cams or headwork unless ur running some serious CR. But thats besides the point.
</TD></TR></TABLE>

ask shawn or tom who tuned it they have no reason to lie and there was no change from the stock 10.6:1. Even though I know I have not had a valve adjusment and the stock fuel pump is failing.

My dyno chart is hanging over my desk at work but I'll go by tonight and post it up.

 

if you look at the the dyno sheet it shows FLYWHEEL hp???? is it supposed to be wheel hp. if it were flywheel hp then you probably have about 140whp...then ur time is better justified..

Or do i just not knowing what im talkin about??

 

its wheel. i dont know why but all dynapacks say flywheel up top. Technically its to the hub since u have to take ur wheels off. But its basically wheel.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by strsi &raquo;</TD></TR><TR><TD CLASS="quote">its wheel. i dont know why but all dynapacks say flywheel up top. Technically its to the hub since u have to take ur wheels off. But its basically wheel.</TD></TR></TABLE>

wheel hp is about 3% less. The b16 loses about 12% to the hubs on the dyna pak which makes the flywheel about 202

 

just throw some pistons on and a set of 310cc injectors and ur good

 

note that the best time my car ran was a 14.6 with 185hp 133tq ls/vtec. in a 1950lb crx on street tires. and another thing, my friend with a jdm obd0 b16 in a crx ran his best time same as yours. he just has intake and header. I guess we can blame it on the track.

best time was
2.366
6.300
9.547
76.862
12.231

14.650
96.015mph

 

those times sound about right....

a mild/stock B16 in a heavy car.

still pretty decent times considering the two.


add a little better pistons or milled head... bring that compression up, and say hello to some 14s

 

I highly doubt this since you've been to the strip 30 times or so and also because your friends are hitting low times, but how's your shifting? That's another reason you might be trapping low; slow shifting.