new to drag

[phoenix-triumph]

did post in here but it vanished, odd?

was after advice on the best improvements i can get on my car on the quater mile. was disapointed it ran a 18.9 its a 2l straight 6 engine, triumph vitesse mk1 engine. is NOS a good choice for easyly improving the 1/4 mile time?

here are my 2 race vids, please feal free to coment on them
http://www.youtube.com/watch?v=ici4rPz6Uvs
http://www.youtube.com/watch?v=hLSfZKjnNb4

all help greatly receved, for more pics of car see the newbi sighn in room, chears

[techinspector1]

Posted by phoenix-triumph:
" is NOS a good choice for easyly improving the 1/4 mile time?"

Yep, sure is. You need to pay close attention to detail though and follow the manufacturers instructions to the letter. If the motor goes lean for a millisecond or you use too much spark lead, you're gonna have some more motor work to do.

[kitz]

Welcome to CHR. I saw your resto video; nice work!

Richard knows what he's talking about. I've always been leary of Nitrous but I think it has come a long way now. However in your case I would worry about how many 2L inlines have been puffed and what the proper fuel/gas recipe should be. I would definitely try to research it first and talk to NOS people etc about it up front.

Regards, Kitz

[phoenix-triumph]

chears, will do. it is 90 bhp at present. what is the bigest decider on a drag strip? and what makes the bigest diference on a quater mile time? tubular exhaust, fiberglass bonnet/wings, diferent fuel, air intake. am going to add things throghout the season and get my time down but which ones make the biggest diference? dont fancy taking engine apart so cams ect are not an option, but want to do it pay day by pay day. just want to get it to a nice time, between 12 and 14 would be nice. think thats realistic? without changing engin internal parts.

[techinspector1]

This is just my opinion mind you, but I don't think you have a snowball's chance in hell of going from 18.9 to 12-something without some MAJOR changes. I'm assuming you've used cast pistons in your rebuild and that will be the limiting factor so far as how much N2O you can spray the motor with without it disassembling itself. Talk with the N2O manufacturers and give them your setup. They can tell you how much spray the motor will take and you can calculate your mph from that. Get hold of Iskenderian and order this nifty little "dream wheel". I've used one for years, but can't find mine since the move I made last year.
http://www.iskycams.com/onlinecatalog.html

[phoenix-triumph]

did say 12-14, if 14 only 5 seconds away. 1 for manafold 2 for nos, 1 for webbers/deletros 1 for lightening car. but i know nothing so there all just hopefull guesses. but surely those combined must shave a few seconds?

[techinspector1]

Well, as far as weight, 100 lbs = 1/10th second e.t.

[phoenix-triumph]

Nice little calculation chears for that, now ill have to figure out a way of waighing the bonnet/wing asembilies and work out the gain to swaping it the fiberglass one iv got, its a nice little starting point to guessing the gain I can get before the next run. spot on for the kind of advice I was after, thankyou verry much. anymore words of wisdom gratly apreciated

[Itoldyouso]

I don't think a J-2 rocket would get you to the times you want. Not being sarcastic, but it just ain't gonna happen without M A J O R modifications and power adders. Then your engines life expectancy will be like 30 feet. (not to mention that weak driveline)


Look at the times stock Mustang 5.0's are turning, and this will put it into perspective. Everybody thinks it is easy to break into the 12's.......it isn't.


Don

[Mike in Motown]

, between 12 and 14 would be nice. think thats realistic? without changing engin internal parts.

From 18.9??????


Not asking much here huh?

Well you could try installing a big block. You wouldnt be changing any of your current internals.

Run the 1/8th mile? I mean it takes two thirds of the time to do the first half distance wise so this should get your times right where you want them.



sorry couldnt resist.

[phoenix-triumph]

first run of 5 was 19.7, the last one was18.9 is first time iv ever been on strip so have no idea when best to change gear for best results, so still practacing. and is a untouched engine, still has a cast iron manafold, 6 into 1.

[Mike in Motown]

I know nothing about tri's but its got an engine and they all benefit from the air in, air out theory. The more air/fuel you can get through it will yield more power. I'd start with getting your stock combo running at max efficeincy. I would then start mods at the carb and get a tubular exhaust header. Check your ignition timing curve and make sure your shift points are just before it runs outta pull and be consistent.

[FIDO]

First off welcome,with your current set up your looking at using a NO'S system like a power shot 125 HP kit.any thing bigger you will need forged pistons.this set up will cost you around $375.00 to $400.00 US dollers to me It's not worth it,If your going 18's now and you ad the kit you mite see high 16's.consintrate on your reaction times and get your 60FT times down and then worry about going fast.you can cut a few seconds off your ET just by doing that,If your (BRAKET ET RACING) I would rather have a car run consistant 18's all day long and win races than worry about going faster.If your harts set on a NO's kit any way go with a (WET-SYSTEM)no matter witch system you choose.I think your using a standerd shift transmission better wier up a NO'S cut off switch,IF you miss shift a gear with NO'S full on it can get ugly.Easy add ons BLOW-PROOF BELLHOUSING/Rev-limiter/drive shaft-loop you should have this any way now with out NO'S.