big dave

I recently purchased this 99SS with extremely high mileage for a very good price. The car was in immaculate condition inside and out and had never been modded. My intentions were to leave it stock but we just can't leave well enough alone can we. Until recently, my only mod was an aftermarket lid. No free mods, not even a K&N. The car ran a 13.19 @ 106.5 with just that 1 item. Anyways, last weekend, I installed JetHot longtubes with offroad pipe and a cutout. We dynoed before the mods and got 296rwhp with just the lid. Keep in mind that this car has 117k miles. After the header install, we got 313rwhp but it was running extremely rich. After tuning it increased to 320. Opening the cutout netted an additional 8 rwhp and torque. I still haven't done any free mods yet so I'm wondering how these numbers stack up to what you guys have seen. A trip to the track showed that the improvements on the dyno did translate into improved track times. My new best is now a 12.96 @ 111.1 with a 2.00 60' on street tires. I'm wondering just how weak this high mileage motor really is. What do you guys think?

JoeT/A

Mine goes 12.80's with cutout, lid, filter, and free mods

oh yeah with a 2.08 sixty ft. This is a 99 T/A

I had a 108 trap speed so your MPH is good, just lacking the ET.

SMOKIN01TA

iTrader: (10)

i was running 12.85 with lid and headers on a cutout a 112 mph with a horibble 2.2 60 ft

onebadz

Damn dude thats a beast of a trap speed, if you could get that 60 time down(you need traction) I think you could be even better. Good Luck

WeS

SMOKIN01TA

iTrader: (10)

if you are talking to me i already have traction, tires and gears made the world of difference with a clutch look at signature.

SMOKIN01TA

iTrader: (10)

hey bigdave you have good mph, get some better 60's and you will be doing good for over 100 miles

big dave

Thanks for the replies guys. I'm wondering what gains, if any, can be seen with the fra mod and possibly the ftra? Do pulleys actually show anything on the dyno and if so what gains have been seen on the track?

foff667

iTrader: (2)

im not a big fan of fra systems as if they are used for other than at the track can suck up unwanted things like water and such..pulleys usually only show a few hp on a dyno next thing id do with your car is either gears or a cam...they will both cost about the same to do but a cam will compliment those new headers. Or maybe some tires would do you good for the track

lata
Bill

onebadz

Get some 4.10s and some Nittos, I would beware of et streets on you stock 10 bolt. If you heat the nittos real good I think you should be seeing somewhere around 12.5. Good Luck

Wes

Got Me SOM

iTrader: (2)

ftra was worth a tenth and 1.5 mph for me. You won't suck up anything like the previous guy said.

A pulley is worth about 7 hp.

I haven't been back to the track cause I haven't had time, it would be hard to say the gains anyway cause I added a torque converter, shift kit and basic tune at the same time.


Definitely worthwhile mods to do.

SMOKIN01TA

iTrader: (10)

actually 4.10's, nittos and a good driver are worth a good 12.3+ assuming you dont demolish you stock clutch or those lightweight 4.10 gears. im expecting 12.1x with current setup if i get a chance to practice.
DAVE: Gears and a 12-bolt are a awsome investment.

big dave

Well judging by the #s some of you guys are making, I'm down by 10-15 ponies. Have you guys removed any weight to get those quick times you've been getting? What suggestions do you have to help me recoup some of those lost horses? I was hoping that because the car has mostly highway miles, I wouldn't have lost that much, even with the high mileage. This sucks.

02redSS

your mph is decent for the mods...and thats an idication of power

the et on the other hand...needs some work...it just doesn't work out in my head with that 60 ft...i hate to say it, but i think your shifting slow

big dave

Believe me, I'm not flatshifting I don't understand why I have that mph, with that 60' but didn't go any quicker. You're like the 3rd person I've seen with a 6 spd, with a slower 60', less mph, but quicker et...what gives?

GrannySShifting

iTrader: (10)

Your car isnt down on power dammit! Throw all the boltons on there and itll be going 114-115 in good weather without the tin can effect, hows that weak

I dont like the FTRA so much (it does suck up thigns, just because one person had no problems, doenst mean the 3 motors Ive seen lunched from them in the shop never happened) just be very careful where you drive or block it off while not racing

You could be do for a clutch or slave, mayeb somehtign not disengaging good?

big dave

If you don't think I'm down on power, check out the numbers alot of these folks are putting down. What free mods do you think I can do that will give me 15-20 rwhp? I'm barely as fast as your grandmothers WS6 was stock

GrannySShifting

iTrader: (10)

her car onlyl hit 112 with lid, ported tb and headers, maybe 113 twice

think this way. ASP, ported TB, LS6 intake, free mods, lose about 50 lbs out the car (misc stuff, or easy with draglites/prostars and car will go 114-115, if not then with gears it will for sure thats a healthy runnign bolton car no matter how you slice it. dont tell me your slow until you have all that and it traps less than 114

Too hard on yo self!

AINT SKEERED

iTrader: (2)

I agree with Grannyshifting, Your car is running strong with that 60 ft. The asp pulley is a good investment as is the ftra and ls6intake. The intake will help and descreen the mas air sensor but do not port it . You could also cut the egr and get a ported throttle body. These cars love a free breathing intake system. Most important of all though is NIttos. You cant use more hp untill you can put it to the ground.

chief455

iTrader: (21)

big dave: why do you think you are down on power? 111 - 112 mph could = 12.4 e.t.s you just have to play with launch quickness vs top end mph. Look at my 19,000 mile 00 Formula. Stock with a Magnaflow cat back and 3.23 and a Vig 3200 converter it only trapped 106 mph but that was at 5000 rpm in 3rd gear. E.T. was 13.2 best.
I put 3.73, a BMR torque arm and Nittos = 12.86 by cutting my 60 foot time and a little quicker at half track. Top end is still 106 mph but at 6000 rpm in 3rd gear as it should be.
I hope my motor still runs like yours after 100,000 miles!!
I'm putting on Jethots myself hoping to get my mph where you are - above 110. I also have SLP lower ram air.
Consider you comination: what is your weight/gear ratio/tire diameter/mph and rpm accross the line. Then do what you must to get the math where you want it. I personally would stay out of the motor and stick to bolt on's for now. You can max out the motor now with mods and then rebuild and cam up after. Why go in the motor twice?
Look at gears/clutch to make it QUICKER yet not loose top speed. What rpm do you trap? Look at shift point changes to improve quickness. Maybe it would like a short shift in the low gears to use torque to pull the car ahead quicker. It's worked for me before.
I say your car is very strong and be proud

Fred99LS1

I say your car is very strong and be proud [/QUOTE]

Dave,

I also said you was running a good MPH. The same way you didn't want to mod the car, you gotta learn that thing needs some drag rad's at the track! Quit bitchin and start moddin. You know more about drag racing than me & still pull back with that car,lol. On a 1.85 60' you should go atleast a 12.72. Drive that sucker the way you know how and keep the damned drag radials on the car. You make me want to come down there and steal your car for a few runs with my BFG's. I did say you was my bud right, Fred