I have been running my built ls/vtec(Stock Sleeves & Stock Bore) for about two years now and kinda wanna see how it would perform on the bottle. The motor is somewhere in the ball park of 12:8:1 compression. I am running Hondata S300 as my engine management and am entertaining the ideas of buying a direct port kit with a 50 shot.
I am just curious to see what gains/problems others have had when combining the two. Also just any help and ideas would be great. ie what kind plugs, kit, how large of a shot, will I need to run race gas, etc.

Thanks

 

I wouldnt run any shot on that cr. with out running race gas. I ran BIG shots on hi CR. with Cam2 blue with good luck...

 

you have gotta run good gas but yes it will work.

 

You'll need to run at least a hundred shot to get a port kit to work right, and as for fuel...... de-burring your combustion chamber etc. is the best way to get off the race gas.
I run a 120 shot w/flat tops, the block and head has been surfaced to the minimum and It uses 93 pump from any corner gas station. 89 pump has also been used but thats probably pushin' it.
And while I'm on my soapbox before you light that sucker off take away half your timing(for anything over a 100 shot)I.E. your timing spec is 16 degrees btdc retard to 8 degrees btdc its good insurance and you can always TURN IT UP!

 

8 deg of timing is a crazy amount to take out on a 100 shot

 

Yes I agree, but it's a starting point. I run 10 to 12, I believe the engine in question is somewhat stock. Untill a person gets a good idea about what to do and not to w/ N2O I would start with as little timing as possible.Yeah, going to low will only produce a bog out of the hole that cancels out the benefits of running nitrous.
Most people give up on nitrous when they first install it because either it does'nt light off or there are so many burrs in the combustion chamber that it detonates and blows the head gasket or spits the rods out the bottom. I want to see more people on port at the track!, once you learn to burn N20 nothing else will do!!!!!!!!!!

That's 2 Posts

 

Run good gas and keep some timing in it. Whats the point of spraying it when you are gonna take away all the power by pulling out so much timing so you can run it on crap gas. My car went almost 2 seconds faster with a 75 shot and picked up 15mph so with the right tuner (which also happens to be the first person that replied to this post) your setup should be nasty with some spray!

 

Ben, was that 75 shot on a Dry kit?

NonVtecAllMotor, how would you feel about tuning a dry kit on Hondata for me?

 

I run my B16 with 75 hp with VP 112 octane(but the the dyno run was 93 octane) dont have any detonation. To be sure i use VP 112
My compression is wiseco 11.5-1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mattb16teg &raquo;</TD></TR><TR><TD CLASS="quote">Ben, was that 75 shot on a Dry kit?

NonVtecAllMotor, how would you feel about tuning a dry kit on Hondata for me? </TD></TR></TABLE>
I had an NOS direct port system.

 

As stated, IIIIIIIIIIIIII........ run 10 to 12 W/ a 120 shot on 93 pump gas, stock on my motor is 16. I also stated that if you take to much timing out you'll be wasting your time. I suggested that if your running a large shot for the first time that you should take out more timing for safety. And as far as racing gas goes, go ahead, it's your money. You'll make more power on **** gas IF you prepped your motor correctly ask any real tuner!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Transpoquick &raquo;</TD></TR><TR><TD CLASS="quote"> And as far as racing gas goes, go ahead, it's your money. You'll make more power on **** gas IF you prepped your motor correctly ask any real tuner!
</TD></TR></TABLE>


That makes no sense to me, at all! You put it best when you said **** gas.If your theory is true, I would like to see some high horse power cars running on **** gas......................

 

EXPLAIN HOW THAT WOULD BE I DONT UNDERSTAND MOST OF THE NITROUS CARS I HAVE SEEN RUN HIGH OCTANE FUEL FOR SAFTEY OF NOT DETENATING

 

Makes no sense to you?.........Racing gas is for cars running in the upper teens,I.E. 16:1 w/alot of power adder, like nitrous and turbo or supercharged etc.. Octane is a measurement of a fuels resistance to burn, oil companies put octane into gas to keep your street car from detonating because of carbon deposits, and things like normal wear. Racing fuel has such high octane because people put it into their 7 sec. track only race cars due to the fact that their motor is probably runnig 16 or 18 to 1 maybe even higher. When you start compressing air at that pressure and do it @ 7 to 10,000 RPM your gonna start poppin off cylinders before its time and you get detonation. So you need more octane. Are you in the upper teens on compression?, does your car run single digits? I did'nt think so. So therefore there must be something wrong for you to have to run so much octane. When someone builds a blown motor or their going to squeeze etc. they go about determing the type of octane they need by one of two ways usually. They'll put the 112 in take it down the track and see if it detonates, if it does'nt less octane means more power, naturally you'll go to less octane. Or if someone is *** backwards it goes like this..."I'm going to put 112 in my anemic 12.8:1 motor because it makes more power" NOT!!!! your blowing all that $ out the tailpipe friend. And if the guy that is telling and selling you on the race gas knew that ,I'm sure he would see it like the other million people that know the basics on octane.

 

nice explanation, but who are you talking to about running 112 and yada yada. Please message that person and keep this nonsense out of the thread!
Thanks for your input but this is not an arguement thread.

 

Running racegas is as much about being safe as it is making power. True, if you just pour in race gas you will not make more power, in fact you will probably lose power. We are talking about running a decent sized shot while not pulling out crazy amounts of timing just to keep it from blowing up. I'm sure Matt does not mind spending a few extra bucks on gas when he takes his car to the track to ensure its longevity (BTW Matt I'm a VP dealer!).

 

I got some more input for you...... I'm talkin to you!, b16teg dude your the one who was lookin for input. You should listen up because my car is a full sec and a half quicker and about 12mph faster than yours through the quarter on a bad day. It's also just a D!.

Maybe I'll give you some more facts and yada yada later, till then keep on keepin on! btw I did'nt see moderator underneath your name.

 

LoL well If you would read a bit better you would notice the only time in my sig is for an OLD setup. Which means it is in the past. But since you pointed that out I would love to see you D car going low 12's and trapping at 110+ got any vids?


Ben I noticed that.

 

I'm sorry, but that is totally false. An octane rating has nothing to do with burn speed, it has to do with a fuel's ability to resist ignition.

Here's some reading for you -


Modified by david@didrace.com at 7:41 PM 10/9/2007

 

Try a set up with 93 octane fuel and another with 112, nothing to lose. In my case only i use 93+112 vp($32.50 for 3 gallons)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Transpoquick &raquo;</TD></TR><TR><TD CLASS="quote">Makes no sense to you?.........Racing gas is for cars running in the upper teens,I.E. 16:1 w/alot of power adder, like nitrous and turbo or supercharged etc.. Octane is a measurement of a fuels resistance to burn, oil companies put octane into gas to keep your street car from detonating because of carbon deposits, and things like normal wear. Racing fuel has such high octane because people put it into their 7 sec. track only race cars due to the fact that their motor is probably runnig 16 or 18 to 1 maybe even higher. When you start compressing air at that pressure and do it @ 7 to 10,000 RPM your gonna start poppin off cylinders before its time and you get detonation. So you need more octane. Are you in the upper teens on compression?, does your car run single digits? I did'nt think so. So therefore there must be something wrong for you to have to run so much octane. When someone builds a blown motor or their going to squeeze etc. they go about determing the type of octane they need by one of two ways usually. They'll put the 112 in take it down the track and see if it detonates, if it does'nt less octane means more power, naturally you'll go to less octane. Or if someone is *** backwards it goes like this..."I'm going to put 112 in my anemic 12.8:1 motor because it makes more power" NOT!!!! your blowing all that $ out the tailpipe friend. And if the guy that is telling and selling you on the race gas knew that ,I'm sure he would see it like the other million people that know the basics on octane.</TD></TR></TABLE>

Ermmm try to explain for what you need add a few points in octane levels to race safetly and w/o knock in high compression motors?. In my case i use vp 112 for prevent detonation not for add more power. Im wrong for that in my set up?

 

Nice! I agree with you almost 100%. I guess that instead of saying "fuels resitance to burn" I should of said "fuels resitance to ignition". Uh, or wait is'nt that the same thing?is'nt evrything you quoted the same thing? but I guess thats what I can expect when I'm dealing with someone who gets their info from a popular mechanics from '98. That's the differance between me and you, I got my info from going to auto trade school and reading textbooks you get yours from a magazine that is almost 10 years old!!!!!!!!!!!!. I just had a thought since your in IL. and I am too we should race!. Your in crest hill so I'm guessing you bring your car to Joliet? let me know the next time your there, I'll be available or you can come to Great Lakes Dragaway on the 14th and I'll blow your doors off between rounds when I'm running in B class and trying to get above 5th in points!BTW I tried to e-mail you......david@didrace.com, not available?hmmm. Instead of quoting people maybe you should do a little homework.LOL,LOL,LOL Popular mechanics from '98 what a joke! Btw teg dude if you want to see my D car running low 12's at 116+ on port w/ 93 pump you'll have to bring your wallet to IL. I know you got plenty of money to waste. I'm starting to like this website. Videos?, popular mechanics?,man that's f#$%in" hilarious.

 

Omgnowayalow12secondnitrousDseriesonpumpgaswhatisy oursecret?Iwenttothenascarinstitutewheretheytaught meallaboutoctaneandyourcompletelyright
andanymoronwithanamelikebonerbenmustbestubid.
Dseriesownzallofyou!!!!!

 

Run E85 and you wil be fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Transpoquick &raquo;</TD></TR><TR><TD CLASS="quote">Nice! I agree with you almost 100%. I guess that instead of saying "fuels resitance to burn" I should of said "fuels resitance to ignition". Uh, or wait is'nt that the same thing?is'nt evrything you quoted the same thing? but I guess thats what I can expect when I'm dealing with someone who gets their info from a popular mechanics from '98. That's the differance between me and you, I got my info from going to auto trade school and reading textbooks you get yours from a magazine that is almost 10 years old!!!!!!!!!!!!. I just had a thought since your in IL. and I am too we should race!. Your in crest hill so I'm guessing you bring your car to Joliet? let me know the next time your there, I'll be available or you can come to Great Lakes Dragaway on the 14th and I'll blow your doors off between rounds when I'm running in B class and trying to get above 5th in points!BTW I tried to e-mail you......david@didrace.com, not available?hmmm. Instead of quoting people maybe you should do a little homework.LOL,LOL,LOL Popular mechanics from '98 what a joke! Btw teg dude if you want to see my D car running low 12's at 116+ on port w/ 93 pump you'll have to bring your wallet to IL. I know you got plenty of money to waste. I'm starting to like this website. Videos?, popular mechanics?,man that's f#$%in" hilarious.</TD></TR></TABLE>

You're funny.