09harleyrider

My first round of mods on my bone stock LS3 has rewarded me with a 10.44@139 timeslip.

This was made possible by the crew at Florida Speed and Power when they installed the ECS SC1500 kit, the "small" blower cam, headers and methanol.

Power jumped from 370whp to 670whp and 632tq.

The question is can I upgrade the boostapump and 60lb injectors that come with the kit to the ECS stage 1 fuel and ID850 injectors for another 70whp and expect to get into the 9's with basically a stock Corvette? (stock bottom end, transmission, converter, etc...)

09harleyrider

I guess what I'm wondering is has anyone done this yet? What kind of horsepower and trap speed would it take to chug through the slow start that the stock converter yields.

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JAvery20

I'm sure some 17 inch wheels with Hoosiers on the back plus skinnies up front would get you pretty close as you sit now.

JetstreamGS

Why not put a converter in?

realcanuk

I ran 1.60 60 foots on a stock converter so you have room for improvement there.

BRING IT

I did it with a 6 speed so with auto it should be a walk in the park.

camirocz

Drop your 60 foot to 1.58 or 1.60 and you re in the 9s.Plenty of horsepower and mile an hour in your current set up to get there.Remember every tenth in the first 60 feet you chop is worth 2 tenths at the end of the quarter mile.A perfectly set up c6 vette gets in the 9.95 zone with 650 rwhp there is no reason your car cant do it.Fartpipe ran 10.26 with an all stock Zr1 and Kyle Lemish ran 10.33 with another Zr1 and they dyno about 520 ish to the rear wheels and were stick cars.Mph for both cars was around 133.Both cars only had drag radials to aid traction.Get out of the hole and collect your 9 second slip.

09harleyrider

Yeah I've already got a 3200 stall ready to go in but don't have time to do it before this weekend for Street Car Takeover.

Thought it would be interesting to see what more fuel will gain Saturday then swap out the TC and try again.

ajrothm

My buddy with a 700rwhp GS A6 ran a best of 9.56@143 on a -1300' DA day. Consistent 9.60-.70s in regular air. 1.38 60's.

It does have a nice FTI converter and Weld RTS drag pack.

Joe Spinners

I have the same mods you do. Mine made 724/622 and I ran a 10.46@141 with a 1.85 60ft. I kinda rolled into the throttle off the line so there is definitely room for improvement. Mine was ran full weight on 305/35/19 MTdr's out back. Kinda wish I had ran it again before the new setup but I think 9s is doable with the right DA.

09harleyrider

I've tried everything to improve 60' on the stock TC. I think maybe I got a 1.76 once! LOL

09harleyrider

We are very close in power level. The fuel system is done and I gained about 75wph (754whp) and went 10.21@145 last night in Bradenton.

JAvery20

I use to spray a 150 shot out of the hole and couldn't do anything either

09harleyrider

My question was answered last night. Without a decent 60ft a 9 second time is difficult to obtain. At least for me anyway. Bumped the power up to 750whp for a 145mph trap speed but the stock TC won't let it fly

DOUG @ ECS

We have several guys who consistently dip into the 9's with our base kit-restirctor removed, ARH, meth injection and a drag radial.

A few have posted in this section over the years, it's definitely doable.

I'll see if I can find some time slips for you.

Not bad for only four mods total!

Fordracer9

I was well on my way to joining the 9 second stock converter club with these mods and 3.42 gears. Unfortunately the trans let go before I could get back to the track. Best 60 I had was in the 1.70s. Car left like a school bus for the first 30ft or so.

ajrothm

Harleyrider, you'll go 9.70s-9.80s with a good converter and no other changes..(probably more like 9.60s). You're giving up 4 tenths in the 60'.

Call FTI, order a converter, go 1.4x 60's...or 1.3x on a drag pack.

realcanuk

Dunno what to tell you. These were not great runs but 60's were decent on stock converter. If I remember right was about 600 rwhp then. Running 275/45/17 MT's.

Pitufina

Were you using a centrifugal or roots style blower? A roots style makes the engine acts as a big black and hence the stock stall increases as well.

ajrothm

That was with a PD blower, power comes in much sooner then a centrifugal. That torque helps it move..

My buddy has a 14' 5.0 with a big Kenne Bell blower, it goes 1.37 60's on the stock 6R80 converter... and that's only 302" and a 4000lb raceweight... Instant boost = good 60'.

A good converter with a centrifugal is the ticket. My converter flashes to 5200, at which point I'm making 15-16 psi...so I'm basically at 15 psi before I move 5'.... If you can hook it, that's where the 1.2x 60' comes from. Ofcourse that's where all the broken axles come from too...