All motor Guys with 402-418ci whats your Recipe for 9s
08-06-2017, 04:38 AM
#42
82 cetuner I was wondering how have you made out with your car? I live in Baton Rouge and I have an 2012 GS Vette with a supercharger that was at Futral Motorsports during the flood. I have since put the car back together with the help of Allan,Justin,Terry,Charlie and last but not least Ali. The car is at Asylum now and on the SBE and stock heads it just went 8.90@151 at the track rental at State Capital. I am in the process of up grading to a 416 w/ Dart LS3 heads. I sold my TFS 245's on the advice of Terry Williams at Asylum so I can't wait to see my results. Check Asylum Motorsports Facebook page the car may be familiar to you.
08-06-2017, 11:48 AM
#43
Teching In
Join Date: Jul 2016
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
82 cetuner I was wondering how have you made out with your car? I live in Baton Rouge and I have an 2012 GS Vette with a supercharger that was at Futral Motorsports during the flood. I have since put the car back together with the help of Allan,Justin,Terry,Charlie and last but not least Ali. The car is at Asylum now and on the SBE and stock heads it just went 8.90@151 at the track rental at State Capital. I am in the process of up grading to a 416 w/ Dart LS3 heads. I sold my TFS 245's on the advice of Terry Williams at Asylum so I can't wait to see my results. Check Asylum Motorsports Facebook page the car may be familiar to you.
Last edited by WV Z06; 08-06-2017 at 11:56 AM.
08-07-2017, 04:01 AM
#44
WV ZO6 I don't have a clue why everything that I have read says the TFS 245 are better but I have always gone faster listening to his advice. You have to trust somebody and hope that they have done the necessary research
08-07-2017, 08:18 AM
#45
Teching In
Join Date: Jul 2016
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
I'm sure it will haul ***! I agree in listening to someone you trust, it usually gets you farther in the long run. Good luck with your build.
01-31-2018, 11:50 AM
#47
I normally don't come over here yet read the thread...... Guy doesn't need any other head besides what he has in Ls3 heads if ported with a good Cnc. Carb style intake and some compression with a 4500 type Carb or T/b. Some may ask how do I know this GreyHatchback being Tim did this some time ago with a 416 E85 hydraulic roller. This was before the FTI 454. Just get your weight down as much as possible and you'll be good.
http://www.yellowbullet.com/forum/sh...d.php?t=414875
https://ls1tech.com/forums/conversio...ang-build.html
http://www.yellowbullet.com/forum/sh...d.php?t=414875
https://ls1tech.com/forums/conversio...ang-build.html
04-13-2018, 10:16 PM
#50
TECH Resident
iTrader: (21)
Join Date: Sep 2009
Location: MD
Posts: 766
Likes: 0
Received 0 Likes
on
0 Posts
The lid is an issue for a max effort stock ci Engine let alone a stroker Engine. A “ram air” tube type of system will pick up et and power. My buddy and I made one to get air from one of the front openings on the camaro. I made it 2 pieces so I could run and air filter on the street
04-27-2018, 06:46 PM
#52
TECH Enthusiast
you know hammer, i'm really beginning to hate you.
you point out obvious things and post them.
just because ported stock ls3 heads' port cc's and flow characteristics match large cubic inch combination's requirement for high rpm power airflow doesn't mean they are the right choice.
a person should choose a small cc port with maximum taper to assure sonic choke and minimize high rpm power. everyone knows torque from idle to 4500 rpms is what wins no limit drag racing.
your 388 is an obvious mismatch in the heads/cam/intake combo.
stfu dude.
you point out obvious things and post them.
just because ported stock ls3 heads' port cc's and flow characteristics match large cubic inch combination's requirement for high rpm power airflow doesn't mean they are the right choice.
a person should choose a small cc port with maximum taper to assure sonic choke and minimize high rpm power. everyone knows torque from idle to 4500 rpms is what wins no limit drag racing.
your 388 is an obvious mismatch in the heads/cam/intake combo.
stfu dude.
05-01-2018, 03:16 PM
#53
10 Second Club
you know hammer, i'm really beginning to hate you.
you point out obvious things and post them.
just because ported stock ls3 heads' port cc's and flow characteristics match large cubic inch combination's requirement for high rpm power airflow doesn't mean they are the right choice.
a person should choose a small cc port with maximum taper to assure sonic choke and minimize high rpm power. everyone knows torque from idle to 4500 rpms is what wins no limit drag racing.
your 388 is an obvious mismatch in the heads/cam/intake combo.
stfu dude.
you point out obvious things and post them.
just because ported stock ls3 heads' port cc's and flow characteristics match large cubic inch combination's requirement for high rpm power airflow doesn't mean they are the right choice.
a person should choose a small cc port with maximum taper to assure sonic choke and minimize high rpm power. everyone knows torque from idle to 4500 rpms is what wins no limit drag racing.
your 388 is an obvious mismatch in the heads/cam/intake combo.
stfu dude.
hugs friend. I will try to do better
07-21-2018, 10:08 AM
#54
Funny thing is how killing *WEIGHT* helps everything, I've seen and now reading about a 742 hp SBC that weighs in @ around 2700 lbs in a Camaro that runs a 5.62 1/8th mile which would = 8.8 1/4 mile.
Flyin has 809 hp 416 -13.5 comp with *Factory* Frankenstein stage2 (touched up by Brett Bauer) Ls3 heads in a 2750 lbs Stang went 8.8 on the 1st time out with a Glide. 5.67 1/8th mile and a 1.31 60 ft.
Kill Weight as much as possible!
It's a 91 camaro and it weighed 2635 lbs yesterday. We use the car for testing. It's all steel with factory glass & factory dash. Lot's of work this winter to get car this light. The car itself weighs 2416 lbs. Ladder bar suspension and 275 Drag Radial tires.
We tested tonight with new engine (400 sb - 23 deg Speier Profilers
v2.70AD/23º
Dart Aluminum Casting
2.70in² MIN
68cc chamber
1.380 x 2.280 opening
248cc runner
2.100 intake
1.600 exhaust
50º intake seats
radius 50º exhaust seats
4.155 fixture
.200 147/112
.300 211/152
.400 259/187
.500 297/213
.600 318/228
.700 327/237
.800 332/243
.900 335/247
1.00 338/249
and on third pass it went the following:
1.241 - 60 ft
3.661 - 330 ft
5.67 @ 121.89
4600 on two step
It dynoed 742 hp on our Dyno. The DA tonight was 750 to 850.
It should run 5.50's with tuning.
4600 Leave RPM
Shift RPM 8400
Cross RPM 8300 RPM
Converter would go 6700 and fall back to 6900 ish on the shift.
We ran out of time to do more testing that night. This was third pass on car.
With a little higher leave RPM and shock/strut tuning (Santhuff - All around) it should go mid 5.50's.
We tested tonight with new engine (400 sb - 23 deg Speier Profilers
v2.70AD/23º
Dart Aluminum Casting
2.70in² MIN
68cc chamber
1.380 x 2.280 opening
248cc runner
2.100 intake
1.600 exhaust
50º intake seats
radius 50º exhaust seats
4.155 fixture
.200 147/112
.300 211/152
.400 259/187
.500 297/213
.600 318/228
.700 327/237
.800 332/243
.900 335/247
1.00 338/249
and on third pass it went the following:
1.241 - 60 ft
3.661 - 330 ft
5.67 @ 121.89
4600 on two step
It dynoed 742 hp on our Dyno. The DA tonight was 750 to 850.
It should run 5.50's with tuning.
4600 Leave RPM
Shift RPM 8400
Cross RPM 8300 RPM
Converter would go 6700 and fall back to 6900 ish on the shift.
We ran out of time to do more testing that night. This was third pass on car.
With a little higher leave RPM and shock/strut tuning (Santhuff - All around) it should go mid 5.50's.
Kill Weight as much as possible!
Last edited by Patron; 07-21-2018 at 10:13 AM.
07-21-2018, 12:07 PM
#55
TECH Veteran
I been preaching about weight for along time my guy..... You don't have to have a light car BUT IT HELPS. IT DOES HELP.
07-21-2018, 03:28 PM
#56
Every 100 lbs is worth near a tenth or .10 now if we do general Math to say that a car that weighs in @ 3200 pounds and runs a 9.28 N/a, if 400 lbs is removed or a change in car which nets you to 2800 lbs the car sould now be capable of 8.8xx in the same distance or + .400 if you add 400lbs for 3800lbs you'd get a 9.6xx. For instance Hammer has a engine which makes near what's listed 740 ish but a car that Weighs 3,xxxx with or about the same Hp yet in a 2650 lbs car with driver 5.6x. which would = 8.90 8.8xx I myself found this to be actually quite interesting. That 740 hp got a car down the track in 5.6.....Honestly never really knew the weight of such a vehicle VS HP as a lot going this fast are FI or Nos engines. If you get a 6.xx in the 8th mile you would run lower 10's and or sub 9 sec's depending on how low in the 6's you are in the 1/8 th mile. To get 3400 to 3800 lbs down the track in low 6's or 9's is asking a lot in terms of engine size and Tq figures ...Hp/rpm is on the board asking also. Picking a lighter car helps Everything!
I was ball parking off of another sub 6 second run and 9 second pass with this combination and it didn't do 5.6 nor 8's only because of weight I would think.
Tim's 416* before it went to a beast mode 454 ls3 headed e85 hydraulic roller Stang came in @ 2970 lbs the cam spec's are. 250ish 250ish .660ish that's with a 4.10 gear / C4 tran and 6100 stall converter.
7250 shift 7450 thru the traps
1.334
3.887
6.052
113.58
7.93
9.53
140.73
7250 shift 7450 thru the traps
1.334
3.887
6.052
113.58
7.93
9.53
140.73
This was on a 408 that was 14.8:1 compression it made 675 rwhp through a th400 5800 converter 9" with 40 spline gun drilled axles 4.56 gears and a set of slicks.
The converter was not right in the car it needed to be around 6800 and it would have gone faster but going through the traps in high gear at 7100 rpm it went 5.87 @ 117.20 with a 1.29 60ft in a 3200 lb race weight car.
We went to Gulf Port last night and it went a best of a 9.26@ 145.87 with a 1.31 60ft it went a 5.88 @ 116.7x
We turned it 8500 rpm
The converter was not right in the car it needed to be around 6800 and it would have gone faster but going through the traps in high gear at 7100 rpm it went 5.87 @ 117.20 with a 1.29 60ft in a 3200 lb race weight car.
We went to Gulf Port last night and it went a best of a 9.26@ 145.87 with a 1.31 60ft it went a 5.88 @ 116.7x
We turned it 8500 rpm
