Not much better but i did notice a gain tonight...thing is tho, it was hotter than last time

and the only two runs i had at night in cooler high 70's weather, i had bad traction and spun like hell on my ET streets....


tonight i couldnt 60 any better than 1.78. 2 runs i spun and ran 1.78's and 2 runs i hooked and ran 1.78's.

Best of the night was this guy

1.78 60 foot
5.44 330 foot
8.53 1/8 mile at 79 mph
11.216 1000 foot
13.465 at 99.64

compare that to the previous
1.77 60'
5.44 330'
8.54 at 75.53 1/8mile
11.23 1000'
13.49 at 99.1 mph 1/4 mile!!


so basically it looks like the pullies did their job and gave me a .5 mph gain and few hundreths LOL. i'm sure with traction on those cooler night runs i had i could have bested low 13.4's but i'm happy so far.

what i dont understand is how my 1/8 mph jumped 3 mph..i dont think the pullies could have done that. i think it might be the timing lights not timing right again. I have a similar problem with mph in the right lane at the 1/4 mile marker. i go 93-94 every time over there...which isnt right at all.

 

Ever so close to joining the 100mph club

 

haha i know, i get crap about that from my friends who have LT1 cars and some LS1 stuff. I'm the slow guy and i want 100mph soo bad. I'd have it with my street tires but not with these taller slicks.

I know my gain tonight isnt conclusive evidence that the pullies and smog delete helped, but so far its a start. for some reason tho i am not hooking great anymore. Never changed anything with the suspension, so maybe the track prep sucked or the tires are getting bad. who knows

 

Last race I ran without an alternator. I took it right off the car. MPH stayed the same as with an alternator and the 10SI alternator is around 10 pounds.

Over 2 days, one day with an alternator that was on it's way to failing and the second day without an alternator at all, my MPH in 14 passes changed about 3/4 of a mph. Even looking back at my logs from previous in the year when the alternator was working, the mph was still the same.

Removing your smog pump probably did nothing except reduce weight. The underdrive pulleys may have helped but I don't think they help as much as claimed. There isn't really any HP to gain by slowing down the accessories. The engine still has to work to turn the pulleys no matter what speed they turn.

I run a factory size crank pulley and a larger underdrive alternator pulley. A typical street alternator drive ratio is 3:1. A 6" crank pulley drives a 2" alternator pulley etc. A drag race car can get away with a 2.5:1 ratio and an oval track car can use a 2:1 ratio because they stay at high rpm for extended periods of time.

At 3:1, your engine spins at 6000 rpm and the alternator spins at 18,000 rpm. For short bursts to 6000 rpm, the alternator will still survive. The alternator speed usually needs to be above 2500 rpm to properly charge. An underdrive pulley system will usually drop it below that at idle.

 

i'd imagine that a set of mt drag radials would net that last little bit. most people mph 2-3 better with them than the et streets.

 

i think i'd beable to hook well on them

i got a rear set of weld prostars coming and i was considering the ET street again or the ET drag radial, but few ppl i know have had problems hooking on those street drag radials. Some tho are hooking great.

i really can care less about 100 mph, it be nice but not my goal. i want to get closer to 12's on my current setup and i am not sure what else to try. I'm upset i couldnt hook last night... never had a problem before. Car seemed to have power there and couldnt hook it up. i know i could have been low 13.4's in that night air if i could have hooked.

 

i'm tellin' ya bro, the stiffer sidwall of the DR's work better on these "heavy" cars.

 

Good times man! Everytime you go your getting lower and lower!

 

lol i may go with the drag radials we'll see. its such a hard choice as i hook so damn well (usually) with the ET streets. and those tires will leave room for more performance down the road, but then again, drag radials have been in the 8's lol

i just want to be in the low low 13's. I thought maybe with the right mods i can go 12.9x lol but now i'm not so sure about that. i may need 1.6 rockers and will need more gear.

 

Hey Orr,
Just wanted to say I have a similar combo- L98 stock bore stock stroke, HSR using LS1 injectors at 50psi (25+ pph), mild cam, TCI street fighter 700R4 with 2500 stall, and 4.11 gears in a 9", 20 year old banks 3" cat back, hooker short tubes, K & N filters, smog delete, egr delete, with full A/C, full interior, 3640# full tank and me, my own tuning and I just got into the 100 mile per hr club with a 13.36 @ 101.34 on 7-29-07 with 75degree weather and just over sea level. I'm running full stock suspension (springs and sway bars) in an 87 IROC T-Top with full poly bushings and Mickey Thompson ET Streets (275-50R15). I'm going to the track this weekend hoping for high 12 to very low 13. Figured out I have false knock with rattling exhaust, reducing timing.

Started out with 14.52 best to 14.06 LTR stock injectors with tuning and 3.27 failing rear, didn't know but also slipping tranny.
New best with HSR , LS1 injectors 13.36 with new 4.11 9" and new tranny (with false knock).

 

very nice! how big of a cam do you have? seems like its running very well so far especially at 3640 lbs. my car is about 3510lbs with me in it and 1/8 tank of gas. lol

Does it like the 4.11 gears? i wanted to stick with a 26inch tire and was thinkin of the 275/50/R15 mickey drag radials which are suppose to be 26.1 inch. i wanted to go with 3.73 gears since i still have more rpms to play with on the top end. i think with a radial tire, i'll be well into the 100mph range.

on street tires in the winter with the old TPI setup and old flowmaster 80 series, i have 3 passes where i hit 100.3, 100.5, and a 100.8 mph. i should be near 102 i think with this HSR since i gained about 2mph over the TPI during the summer timeslips i have

 

You need some long tube headers and lower control arm relocation brackets. Those were the biggest gains i had on my car when it was tpi and N/A.

 

i have the brackets and located the LCA's in the bottom hole like i have before and it didnt hook the other night.

I think i need to play with my shock settings. i have the front set to light as can be and the rear kinda stiff. i dont rreally get any squat and thats good cuz thats not what you really want, but i think the front comes up too fast and then drops, unloading the rears...so i may soften the rear or stiffen the front.

I'm not complaining tho since the car was never ment to be drag only...i have stiff springs and big swaybars on the car and with the shocks set to stiff...the car handles very well.

longtubes i want bad but just dont have the money to have someone fab up the rest of the exhaust. i would need custom y pipe made for those to run to my existing exhaust

 

what pulleys did you get BBK or march or march power & amp?? Ive talked to you before i have a 1800 stall and 3.27 gears and a 650 carb and high rise intake on the same slicks and my best time is 13.87 at 99.1 im trying to see how far i can go with stock heads and cam too. Id say bump up the gears to 3.73 and some roller rockers and you'll be low low 13's and 100MPH+

 

i have march power and amp series.... aluminum crank pulley version. i think the slicks are really holding back my top end. the car just seems dead once in third gear. i should switch to a drag radial on a lighter wheel which hopefully i'll have in another month or two. That way i'll be ready for fall air and should break bottom 13's at over 100mph easily lol

i may even go back on street tires to see how quick the car is in street trim. i should easily break 100mph then...probly 101-102

 

I see people are telling you to go to a 3.73 gear. Would that be too much gear with the stock heads and cam? I know you don't have TPI anymore, but I see a lot of people saying the heads/cam aren't much better as far as high rpm horsepower.

 

Nice job dude!!
You should make a Maryland trip with me - cold weather and maryland alt and great track prep = 13.2s for you..
Maybe try pulling the belt all together on one pass.. Purestock was getting almost 3/10s I think out of his 86 stock 5.0L.
That car is exciting man! I love seeing stock 3rd gens run good!
It proves these cars are not dead it just the ****** mentality that gets a hold of them making them look terrible.

Keep it up!

get 3.73s!

 

yeah these cars have potential thats for sure..just needs the right mods. I feel i have more in this car with proper suspension and drag wheels thats for sure.

i'd be worried about taking the belt off the water pump during a run lol but i guess i dont need it running since the motor is so cool when i run.

I really want 3.73's tho... lol you still have those gears? Maryland sounds good, maybe i will do that sometime. dont really wanna drive the car that far with slicks in the car lol but maybe i can

 

lol i wouldnt drive to maryland on the et streets i drove to MIR one day and it started raining i couldnt get past 20mph without sliding into other lanes i had to sit on the shoulder and wait for it to stop once it stopped with the shift kit i installed even at barley any throttle the 1-2 shift the car spun sideways i want drag radials too the et streets are no better for the street then et drags.

 

yeah i'd have to put the slicks in the back seat lol. or have someone else follow me down and load up supplies in there.

stock heads and cam seem to be only good till 5000-5200 rpms. 5000 it peaks hp wise and 5200 it starts falling off fast. 3.73's will bring me up to around 5000rpms across the line which would be perfect for best times.

 

I recently put 3.73's in my car replacing 3.08's. I noticed a huge difference on the street!!! I have only been to the track twice since then and have noticed about a tenth better at first and the second time out (still learning the new shift pattern) I gained around .2 sec.

With my current setup, I think it's a little too much gear, but it leaves me room, and gives me an excuse for more mods! I am finding that I am in fourth before I hit the 1/8 shifting at 4500 RPMs. Then, the car just kind of flattens out and cruises down the rest of the track. Def. need to work on top end. I cross the traps at 5200 RPMs at 102.5 and even got a 103!!!

Overall, IMO, if you plan on more mods in the future, 3.73's all the way. If not, stick with same tire size and 3.42-3.55.

 

what rpms do you go through with the 3.42's? With 3.27's i go through at 4100rpms.

 

I just realized you already have 3.42's. LOL

3.73's all the way baby!!!!!!!!

 

i love the 3.42s...it is a great street setup but good for the track too. i shift at 5100rpms and i believe i go thru the traps around 4400-4500 rpms. 3.73s will raise that too near 4800-5000rpms which is where i want it.

mainly i want 3.73's to help out my top end. the car seems to die with these tires once shifting into 3rd. i think more gear will help it some

 

My cam is .438int .452exh 208 214 @ 050.
It loves the 4.11 gears, quick starts and go through the traps close to 5500.
On the street with 700r4 only raised my rpm's 500 @ 60 mph in 4th.

By the way Sunday got me a new best of 13.07 @ 102.51

 

wow taht cam is almost identical to stock with 1.6 rockers. not bad times at all for that combo you have... makes me feel bad about mine lol