500 n/a combos
500 n/a combos I want to make close to 500 at the tires. N/A stick bore ls1. Any proven combos that can be recommended? I was thinking about some 2.5 243 heads and I have yet to decide on what cam to order. Btr cam or maybe a texas speed cam. Just wondering from people who have done it so I can copy them and save some time and money in the process.
TECH Senior Member
Joined: Feb 2009
Posts: 5,445
Likes: 4
too many threads on this subject .you will need some trick flow 215cnc heads or better .or consider some Texas Speed 225/227,or bigger port heads .contact Pat-G ,or Martin at Tick performance for a custom cam.you will need a fast intake combo.
Well I started reading that thread a while back. Has some broken links in it. I will continue on but seeing as how that thread started a while ago im sure there has been improvements in cam profiles. I was well aware of the intake and exhaust and the rpms it would take I was kinda looking for someone who has done it to say what it took.
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I was reading a thread that had a super vic intake. Ill have to think about that route. Dont know about hood clearance in a c5. And if I did that I would probably have to go to speed density. Not that im opposed to that.
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Verdad Gallardo Yeah, the big downfall to the Super Vic. 4150/4500 TB route is the clearance. It will require cutting of the cowl and sometimes it even means losing your wipers (or at least the passenger side one). With that said, in my opinion, it's a far better route than the overpriced FAST intakes. Plus, with the right cam and combo, the power down low in the RPM range will be just as good as with a FAST intake and the upper RPM range will blow a FAST out of the water.
Staging Lane
Joined: Jun 2013
Posts: 78
Likes: 0
From: Ft.Polk LA
for a C5? heres mine, just made 563/552 to the wheels. and it is being seriously held back by the cam and 90mm TB.
434 Cubic Inch LS6- Darton Wet Sleeve
Cartek Stage 5 Heads- 265 CC- 2.25 Intake/1.7 exhaust CNC Ported
W/ Ferrea Hollow Stem Steel Intake/ Sodium filled exhaust/ Brand New Springs
Comp Cams- 236/259 & 623/623 in @ 112 LSA
Wiseco 4.155 inch pistons = 11.5:1 Compression
Eagle Crank 4 inch Stroke/ H beam Rods 6.125 inch
2 Gallon A.R.E. 3 Stage Dry Sump- Stainless Lines to everything
A/N Fittings for Everything
Runs on a fixed speed density tune not MAF
Intake:
Fast 102 intake/ TPIS 90 MM TB
Carbon coupler
Vararam Ram Induction System
434 Cubic Inch LS6- Darton Wet Sleeve
Cartek Stage 5 Heads- 265 CC- 2.25 Intake/1.7 exhaust CNC Ported
W/ Ferrea Hollow Stem Steel Intake/ Sodium filled exhaust/ Brand New Springs
Comp Cams- 236/259 & 623/623 in @ 112 LSA
Wiseco 4.155 inch pistons = 11.5:1 Compression
Eagle Crank 4 inch Stroke/ H beam Rods 6.125 inch
2 Gallon A.R.E. 3 Stage Dry Sump- Stainless Lines to everything
A/N Fittings for Everything
Runs on a fixed speed density tune not MAF
Intake:
Fast 102 intake/ TPIS 90 MM TB
Carbon coupler
Vararam Ram Induction System
for a C5? heres mine, just made 563/552 to the wheels. and it is being seriously held back by the cam and 90mm TB. 434 Cubic Inch LS6- Darton Wet Sleeve Cartek Stage 5 Heads- 265 CC- 2.25 Intake/1.7 exhaust CNC Ported W/ Ferrea Hollow Stem Steel Intake/ Sodium filled exhaust/ Brand New Springs Comp Cams- 236/259 & 623/623 in @ 112 LSA Wiseco 4.155 inch pistons = 11.5:1 Compression Eagle Crank 4 inch Stroke/ H beam Rods 6.125 inch 2 Gallon A.R.E. 3 Stage Dry Sump- Stainless Lines to everything A/N Fittings for Everything Runs on a fixed speed density tune not MAF Intake: Fast 102 intake/ TPIS 90 MM TB Carbon coupler Vararam Ram Induction System
OP, here's the thread you need to read.
https://ls1tech.com/forums/dynamomet...1rwhp-fti.html
for a C5? heres mine, just made 563/552 to the wheels. and it is being seriously held back by the cam and 90mm TB.
434 Cubic Inch LS6- Darton Wet Sleeve
Cartek Stage 5 Heads- 265 CC- 2.25 Intake/1.7 exhaust CNC Ported
W/ Ferrea Hollow Stem Steel Intake/ Sodium filled exhaust/ Brand New Springs
Comp Cams- 236/259 & 623/623 in @ 112 LSA
Wiseco 4.155 inch pistons = 11.5:1 Compression
Eagle Crank 4 inch Stroke/ H beam Rods 6.125 inch
2 Gallon A.R.E. 3 Stage Dry Sump- Stainless Lines to everything
A/N Fittings for Everything
Runs on a fixed speed density tune not MAF
Intake:
Fast 102 intake/ TPIS 90 MM TB
Carbon coupler
Vararam Ram Induction System
434 Cubic Inch LS6- Darton Wet Sleeve
Cartek Stage 5 Heads- 265 CC- 2.25 Intake/1.7 exhaust CNC Ported
W/ Ferrea Hollow Stem Steel Intake/ Sodium filled exhaust/ Brand New Springs
Comp Cams- 236/259 & 623/623 in @ 112 LSA
Wiseco 4.155 inch pistons = 11.5:1 Compression
Eagle Crank 4 inch Stroke/ H beam Rods 6.125 inch
2 Gallon A.R.E. 3 Stage Dry Sump- Stainless Lines to everything
A/N Fittings for Everything
Runs on a fixed speed density tune not MAF
Intake:
Fast 102 intake/ TPIS 90 MM TB
Carbon coupler
Vararam Ram Induction System
That's not a stock 346. At all.
OP, here's the thread you need to read.
https://ls1tech.com/forums/dynamomet...1rwhp-fti.html
OP, here's the thread you need to read.
https://ls1tech.com/forums/dynamomet...1rwhp-fti.html
Staging Lane
Joined: Jun 2013
Posts: 78
Likes: 0
From: Ft.Polk LA
the Ls7 heads are in the works along with a bigger cam and a much needed 102mm TB. once she got up around 4.5k+ you could tell it was getting suffocated by the little 90mm.also looking at going to a 4.25" crank, making somewhere in the nieghborhood of a 468ci
OP don't forget to bring a briefcase full of $$$$ cause that is what its going to take to reach that magic 500 RWHP. It can be done with a 346 cu. in. motor. But it will not be inexpensive in any way shape or form. The old rule of there is no substitute for cubic inches is still in effect in the 21st century just like it was in the 20th. Bigger is always better if you don't believe me ask your girl friend/wife. It is usually the least expensive way to reach big HP/TQ. A 400 cu. in short block with good heads and a good cam is probably cheaper and more reliable in the long run.