Inliners International Forums General Discussion Hi Performance Dream on

I was posed this question last weekend by a teenager that I took to a local 1/8 mile track.It was his first time at the strip but to my surprise he knew and understood what bracket racing was.His father and I have known each other for years but he doesn't get into cars like I do so he preety much told me to show the boy a thing or two about cars and so for.The boy asked what would it take to send a car,say a chevy II,down the 1/8 in low 7's high 6's consistentlly with an inline six.To keep it close to home lets go with the more ordinary 250.What pistons,cam,crank,head,headers and work would you do to this parts.What rear gear,wich automatic trans(350/PG).Just food for tought,anyones comments are welcome.Thanks,HF.

How much does your vehicle weigh, ready to race with driver?

I don't know how much an early Chevy II weights I guess we can use some average figure,that's up to you.Since the title of the thread is dream on lets say that I'm a fit and trimmed 165 lbs.HF

Let's say 2600 with driver. a 7.0 in the 1/8 is about a 10.70 in the 1/4 with optimum suspension!
ET=1.05+(4.99xcube root of(wt/hp)so HP=350
MPH=10+221xcube root of(hp/wt)=123 in 1/4
with an 8"x26" slick and 6500 through the traps the rear gear ratio is
RGR=RPMxTD/(310xMPH)=4.43 The low gear ratio with auto is LG=TWxMPH/(HPx1.8)=1.56 so use a 1.76 PG. (You lose the 1.8 multiplier with manuals.) So using 1.76 the tire width is 9" so tub the car. You'll need a cage at this point so lose the seats for a single bucket. Swap the monoleaf springs for some tri five multi leaf ones and run caltracs. Since it's track only get the best head you can and keep compression at 11:1 or better. Use a 230/240 cam and headers and a dual or triple carb intake.


[This message has been edited by Phil (edited 07-20-2003).]

After years of hard work and way over budget we found the 6 second zone. I tried to race them formula's you guy's have but they just left me coming up way short in the real world. I guess that's why we race cars and not formula's. The 6 second 1/8 mile zone is a little more difficult than it looks in a full bodied car vs a rail/dragster. My truck is not areo freindly like a nova but it's better than most trucks I would think. If you want a "all motor" combo it will take a alcohol injected,lump port 12:1 comp,solid roller .800 lift,5000 convertor with a trans brake.

A milder nitrous injected 200 hp shot with 11:1,lump port,solid liter.600 lift,single 600cfm on gas,same 5000 convertor and brake.

A set of 4.56 gears and some 26x10 et drag slicks. Big tube headers 1 3/4. NO mufflers or very low restriction bullet header mufflers. The ignition system needs to be first class. A crank trigger or a new MSD billet distributor. A dual point Mallory won't do PERIOD! Been there done that! Make sure that all the part's are first class NO JUNK! That will make all the diffrence when it comes time for trouble shooting.

EXAMPLE: If you went the carb/nitrous route. The carb you are going to use is not somebody else junk that they could not get to work.
OR
Talk to the guy's that set the records. It seems the new trend seems to be that cylinder head guy's are over paid. I say BULL--it! Anybody can flap thier gums about air flow. That motor still needs fuel and spark.

To push a 2600-2700 lb car into the 6.9 zone with a 250 won't be easy but it can be done.

Steven

Now to add my 2cents on the multi leaf settup You don't need Them with the Caltracs
They have a set for Single leaf I know I have a set.With only first time settup No adjustments Made I went from 20s21 60ft To a 18 60ft. I had the old bolt on Traction bars that replace the stock spring&shock mount.Type bars. NOW I run the CalTracs on my 64 SS chevy2 with single Leaf and There the stock ones Not New. So you make the call on what you want. OH and my tires are the ET streets 13.5x29 But measure 13.5 x 27 for what ever odd reason that is . With or without air(on or off the rim) Hope this helps.

Ps. AND I Agree with Mighty6
Hey Mighty6 are you saying MSD makes a dist for our L6s Now????



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NovaMan/Twisted6/Larry

Hey Larry- We ran ET Streets several years ago. They hooked good on a good track but if the track was less than perfect forget it! Try some ET Drags you might pic up a couple hundreds.

Yes, MSD make a Pro Billet Distributor #8515

We are running a Mallory dual point converted to a Unilite. The mechanical advance has been welded up. The harmonics in a radical motor justs destroys the mechincal advance. The distributor is set at full advance and retarded with a MSD start/retard box (msd-8980). We chased a studdering problem @ 2500-3000 rpm for years. Till we figured out that the harmonics was freaking out the advance.

Steven

Yeah i had planed on going to a full ET slick as soon as i wore these out LOL Yeah they do hook Great. And most the tracks & times i go there is alwasy some Top Guns there running as well so normaly Track is nice and tight. I may look into the price of that dist. Thanks

I had the msd box before had if for 3yrs in the box When i finaly got around to installing The car started 3 times then Bang Bad box Had it rebuilt could have just bought a new one LOL But I sold it and the rest of the msd stuff I had Plain on useing. and just went with a stock HEI But very well upgraded. I aslo had tried the mallory unite never had much luck with it. But I still have it and a dual Point.

Again thanks }[oooooo]



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NovaMan/Twisted6/Larry

Now we are cooking,I appreciate your thoughts on the matter for I had no clue as to what would it take.You guys racing these engines keep those comments coming.Thanks.HF

For the fellow inliner's that remember the Kinsler injection I had on our motor....It's gone. We are back home with the carbs and a easy 100 hp shot of nitrous. We managed to get the injection working like Kinsler claimed but we really didnt have a place to race (class). It was not fast enough for heads up racing. It would not fit in footbrake classes (transbrake) I didn't want to go delay box racing.

So, I cracked under peer presure from my Outlaw street car freinds. It's been a blast the way racing should be. Every pass is on the ragged edge of going straight down the track. Match racing big blocks on nitrous with similar performances is awsome. The crowds love it! I never really disliked nitrous or wanted to try it but now "I'm a junkie".

1/8 mile racing is real big in our area even though two of the best 1/4 mile tracks are close by.

We are in the early stages of tuning this motor and when it goes straight down the track it will go faster!

Check it out at www.mighty6.com

Steven