New best for 396 LT1 - 11.7 @ 118.8
#21
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Very nice engine combo. Good selection of parts. Especially the Fast!
That cam is healthy and should make impressive power and speed.
You could really use a 3" true dual exhaust if you don't have one. I made all my runs through full exhaust, no cutout needed.
The lowering springs are hurting your launch. I would reinstall the stock springs or splurge on some QA-1's on all corners with QA-1 front springs and stock rear springs with the rubber pad removed. That's what I'm running along with 1/2" front shock spacers and it really works well.
What is your CR ?
That cam is healthy and should make impressive power and speed.
You could really use a 3" true dual exhaust if you don't have one. I made all my runs through full exhaust, no cutout needed.
The lowering springs are hurting your launch. I would reinstall the stock springs or splurge on some QA-1's on all corners with QA-1 front springs and stock rear springs with the rubber pad removed. That's what I'm running along with 1/2" front shock spacers and it really works well.
What is your CR ?
#22
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Originally Posted by skinnies
Yeah, you really need more head to feed the cubes. My buddy has the le2 heads/le3 cam on a 355 and went 11.70 at 121 with the stock 3.42 gears, a base pcmforless tune, and launching extremely soft because the rear end has 200k+ miles on it.
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Originally Posted by Z284thgen
the lack of 12 bolt in that list is a big factor
put some 4.11s to that bad boy and a full slick and then see what happens
in some decent air mine trapped almost 123 with TEA lt1 castings and a GM847
put some 4.11s to that bad boy and a full slick and then see what happens
in some decent air mine trapped almost 123 with TEA lt1 castings and a GM847
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Originally Posted by CNC Stew
Very nice engine combo. Good selection of parts. Especially the Fast!
That cam is healthy and should make impressive power and speed.
You could really use a 3" true dual exhaust if you don't have one. I made all my runs through full exhaust, no cutout needed.
The lowering springs are hurting your launch. I would reinstall the stock springs or splurge on some QA-1's on all corners with QA-1 front springs and stock rear springs with the rubber pad removed. That's what I'm running along with 1/2" front shock spacers and it really works well.
What is your CR ?
That cam is healthy and should make impressive power and speed.
You could really use a 3" true dual exhaust if you don't have one. I made all my runs through full exhaust, no cutout needed.
The lowering springs are hurting your launch. I would reinstall the stock springs or splurge on some QA-1's on all corners with QA-1 front springs and stock rear springs with the rubber pad removed. That's what I'm running along with 1/2" front shock spacers and it really works well.
What is your CR ?
I agree that the lowering springs are hurting my track times. The car will see a lot more time on the street than on the track, so I can live with some mediocre launches, at least for now. I still think an 11.5 @ 120 is feasible as the car sits.
Any pics of your exhaust setup?
CR is 11.5.
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Originally Posted by 97bowtie
Yeah, I really need a 12 bolt or 9 inch if I plan to go much quicker.
man as far as you are with the car i say its a must
you can get some gears and get a rear end you wont have to worry bout puttin a sticky tire on it
#26
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I saw you were looking for photos of duals...Here's my new set up..It has not been track/dyno tested yet as my sig runs were made with a Borla cat-back run wide open, but it definitely FEELS faster now...
https://ls1tech.com/forums/lt1-lt4-modifications/639256-pix-new-3-stainless-true-duals.html
Hope this helps a bit...good luck on your hunt for 120 mph...its definitely doable...I think tune and gears (4.10s) and a good sticky tire will get you there...
--Alan
https://ls1tech.com/forums/lt1-lt4-modifications/639256-pix-new-3-stainless-true-duals.html
Hope this helps a bit...good luck on your hunt for 120 mph...its definitely doable...I think tune and gears (4.10s) and a good sticky tire will get you there...
--Alan
#27
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Originally Posted by 97bowtie
My goal was a streetable 120 mph car, and I'm getting very close to my goal. Those are good numbers for a 355. Keep in mind that our tracks are at 1250' elevation, we are limited to 91 octane and the car hasn't been on the dyno yet. I'm sure I'm leaving 15-25 HP on the table with the tune. That coupled with the 3.23s makes for a bunch of excuses.
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Originally Posted by skinnies
You should be able to get it no problem. His car is a daily driver and we were really suprised how well the le3 cam drove on a STOCK tune, better than a lot of cc306 cars I've seen that were tuned. We are at 800ft here and he ran his times in 1600da, on 91 octane also and never been on a dyno. If I was you I'd shoot for 123-124 MPH.
#29
Awesome dude, congrats! I'd say your car had high 10's in it looking at your parts list, was it a solid roller? I assume so with you running the fast (spin it up past 7200), dude run some 4:10s, 27 or 28" slicks...high 10's or definitely low 11s on your beast.
Originally Posted by 97bowtie
Here's a quick run down on my setup:
Dragonslayer 3.875" Forged Crank
SRP 14cc dish forged pistons
5.850" H-beam Rods
Canton oil pan
Blueprinted high volume oil pump
Comp R lifters
Pro Magnum Roller Rockers
Comp Cams Pushrods
58MM Arizona Speed and Marine TB
Moroso CAI
Hooker LT's (JetHot Coated)
Street Twin
F.A.S.T engine management with wideband 02 sensor
LE4 Cam 24x/24x, .6xx/.6xx 10x LSA
LE2 Heads
Accel 300+ ignition module and coil
36# SVO Injectors
LE2 Heads
Cloyes Double Roller Timing Chain
Electric Waterpump
Vented Opti
Eibach sportline lowering springs
BMR Strut Tower Brace
BMR Panhard rod
BMR tubular LCAs
BMR LCA relocation brackets
255GPH fuel pump
26x10.50 ET Streets
MT skinnies on Draglites
And some other little sh*t.
The biggest thing holding the car back is the 3.23 gears. 3.23s behind a six speed make it real tough to get out of the hole, and the car is in 3rd for more than half the track. I have no doubt it would be a low 11 second car with more gear and a dyno tune.
Dragonslayer 3.875" Forged Crank
SRP 14cc dish forged pistons
5.850" H-beam Rods
Canton oil pan
Blueprinted high volume oil pump
Comp R lifters
Pro Magnum Roller Rockers
Comp Cams Pushrods
58MM Arizona Speed and Marine TB
Moroso CAI
Hooker LT's (JetHot Coated)
Street Twin
F.A.S.T engine management with wideband 02 sensor
LE4 Cam 24x/24x, .6xx/.6xx 10x LSA
LE2 Heads
Accel 300+ ignition module and coil
36# SVO Injectors
LE2 Heads
Cloyes Double Roller Timing Chain
Electric Waterpump
Vented Opti
Eibach sportline lowering springs
BMR Strut Tower Brace
BMR Panhard rod
BMR tubular LCAs
BMR LCA relocation brackets
255GPH fuel pump
26x10.50 ET Streets
MT skinnies on Draglites
And some other little sh*t.
The biggest thing holding the car back is the 3.23 gears. 3.23s behind a six speed make it real tough to get out of the hole, and the car is in 3rd for more than half the track. I have no doubt it would be a low 11 second car with more gear and a dyno tune.
#30
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All of the LE cams are hyd. Note the Comp R lifters in the parts list.
Bret Bauer does a nice job on Lloyd's cams. I'm running a LE2ish cam with more exhaust duration and it gets the job done with only 230* at .050 on the intake side.
Bret Bauer does a nice job on Lloyd's cams. I'm running a LE2ish cam with more exhaust duration and it gets the job done with only 230* at .050 on the intake side.
#31
Launching!
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Congrats, very nice times
Makes me excited about mine, as your combo is very similar, I am running a simalar cam and LE2 heads. Doubt I will hit 11's with my stock 10 bolt still out back
Makes me excited about mine, as your combo is very similar, I am running a simalar cam and LE2 heads. Doubt I will hit 11's with my stock 10 bolt still out back
Last edited by 96blkform; 01-16-2007 at 07:10 PM.