Pinnhead13

iTrader: (5)

so yea, i got some money to play with and im looking to upgrade my setup.. im looking to go mid to high 12s in the very near future, so what ould be the more appropriate upgrade, an Ls6 (or weiand or typhoon) or a full street and dyno tune at either Slowhawk Performance or Maximum Performance.

what would you do?

right now here are my mods.

99 z28 m6
monster stage 3 clutch & billet flywheel
BBK headers
offroad Y
high flow cats
SLP Loudmouth catback
Slp Lid and bellow
Msd wires and ignition
eibach drag springs
umi sway bars
Nittos all the way around

djfury05

iTrader: (30)

intake.. wait until you have some more performance mods done so your not paying for retunes all the time.. get an LS6 for now.. and FWIW you should already be in the 12s with your current mods.

Pinnhead13

iTrader: (5)

yea i went to the track the other day and only could put out a best time of 13.4 at 109 but that was with my god awful 2.5 60' time on street tires... do i need ti buy anything else with the Ls6, and how hard is the install?

Schwanke Engines

iTrader: (1)

LS6 Intake, then tune it.

djfury05

iTrader: (30)

http://ls1howto.com/index.php?article=5

Pinnhead13

iTrader: (5)

so the next question is should i ghetto it and cut the fins or should i get the correct lines... and if i get the lines, Which ones should i go with?

BIG_MIKE2005

iTrader: (116)

Keep the stock LS1 coolant lines. Everyone jumped on the block off bandwagon including myself. When I go back in with a LS6 intake I'm removing the block offs & gonna chisel the bottom the the LS6 to clear. I'm at the opinion now that its best to leave the coolant lines in the back of the heads hooked up. There has been much discussion about this over the years & I'm goin back to stock configuration.

By the way, your MPH is good enough for at least a 12.9 pass. I ran the time in my sig before my H/C set-up on street tires & no tune. If you can get that 60' down & get a clean pass your in the 12's already.

Me personally I'd get the intake & wait for the tune. Otherwise after a few more mods your tune will need to be altered again. I'd wait till at the point of having to have it tune.

TheBlueKnight

iTrader: (4)

Don't waste $50 on buying the lines. Like said above, just chisel. It's not "ghetto", it's standard procedure for upgrading to an LS6 intake.

I say LS6 intake and then mail order tune from Frost for $125. No need for a $500 dyno tune for some simple bolt ons.

And if your 60ft is 2.5 go down to your local pick and pull, grab a pair of 4th gen wheels for $80 and then order a pair of Mickey Thomsons or Hoosier 255 DR's for $400.

thunderstruck507

iTrader: (18)

Do yourself a huge favor and get a new driveshaft before you go back to the track. My buddy put in that same clutch and has broken 2 stock shafts now.

First at the strip at launch (street tires) and once on a 1-2 shift on the street (on street tires).

If your running 2.5 60 ft times you don't need to bother with an intake or tune until you get some tires. If you can't get at least a 1.9-2.1 out of it you're pissing into the wind buddy.

20sickss00

iTrader: (19)

yeah tires are the way to go first before the intake, I went 12.6 with lt's, slp lm1, and lid. with mickey thompsons et streets on z28 wheels. get some tires first

rob69zombie

iTrader: (7)

Agreed with some of the above; your trap speed is good for a 12.7-12.9 (with a 1.8-2.0 60'). I'd go with an LS6 intake and then the tune if you're not putting a cam in any time soon. If you have a cam planned in the near-future, wait until then to tune it. My car ran a 12.9 @109 with a 2.09 60' with just Pacesetter LT's, ORY, GMMG, and an LS6 intake with no tune. I hope to get it to around a 12.6 with drag radials and 12.3 with an u/d pulley and a FTRA kit. Good luck OP.

hitmanws6

iTrader: (20)

Intake/Learn how to launch and get some tires definitely. even at the level you are at you can get by with a mail order tune if you cant afford a full dyno tune.

86zcamaro

iTrader: (8)

If you got some decent tires you should be in the 12's as stated.

I ran 13.38 at 106 with a 2.0 60ft in an a4 car.

Your launch is worse than I have ever had even on the crappy cooper street tires it came with when i got it, that being said I would most likely say your spinning pretty good since I dont have a stall and I do not footbrake my car.

I think my worse was a high 2.2 or lower 2.3 60 ft

WSsick

iTrader: (13)

Wow your 60ft sucks I'm assuming you are just dumping the clutch? Try slipping it. I have close to the same setup as you, no susp though or useless stuff like bellows, but I ran a 12.83 @ 108 without a tune, on street tires, and stock clutch. My 60ft was a 1.90, again on street tires(245/50-16 falkens). I'm by far not the first person to do this, but it just shows its not that hard. Get your launches down and you will have your 12. Some good air wouldn't hurt as well (I could use some of that).

To answer the main topic, youd be better off with an LS6, since you don't want to be paying for retunes all the time.

He doesn't need DRs to hit 12s, street tires will be fine. Check my above post.

rob69zombie

iTrader: (7)

Yup, lol. Get the LS6 and launch a better 60'.