Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

H/C/I opinions for 398"

Thread Tools
 
Search this Thread
 
Old 09-14-2018, 09:16 AM
  #41  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

Baby cam used for both. Even though a larger bore and smaller stroke is used ..the Hp will be about the same just @ a lower rpm with more Tq......ball park with compression of around 11.5 and a cam that goes to 7500.....248 - 250 ish @ .050 with more Tq. More compression for you makes more Hp/Tq throughout the entire power band.

FAST intake
https://ls1tech.com/forums/dynamomet...h-runners.html

Carb intake:
https://ls1tech.com/forums/dynamomet...-727-fwhp.html
Old 09-14-2018, 09:24 AM
  #42  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,836 Likes on 1,145 Posts
Default

Originally Posted by Patron
Baby cam used for both. Even though a larger bore and smaller stroke is used ..the Hp will be about the same just @ a lower rpm with more Tq......ball park with compression of around 11.5 and a cam that goes to 7500.....248 - 250 ish @ .050 with more Tq. More compression for you makes more Hp/Tq throughout the entire power band.

FAST intake
https://ls1tech.com/forums/dynamomet...h-runners.html

Carb intake:
https://ls1tech.com/forums/dynamomet...-727-fwhp.html
Yup, that was the guy. NavyBlue. Patron, you are ON IT!! LOL.

He's a pretty cool guy too. That's right, though. It was 690 and then 727 the second go round, and I did remember thinking the cam was on the small side for the displacement, but he intended it to be in a street car. Gotta laugh, but the first tuner had told him with the short runners and light clutch he wouldn't make any torque.
Old 09-14-2018, 10:09 AM
  #43  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

Darth you know I have this stuff bookmarked....BTW got my electric 50 gpm water pump by Jegs for under $500 beats the cost of the 50 gpm Meziere at near $1k and ICT billet: Alternator Only Bracket Low Mount LSX for use with a Electric Water pump. No serpentine belt. Alternator & Vacuum pump only..no P/s or A/c free HP and cleans things up a bit.


Navy is a good guy my only thing is the HP to cost ratio. Not hating! With Ragztop combo as is with the same compression 700 with a LLSR cam and pump gas is easy! Refer back to Speedtrigger 402 just a different intake used.

Easy money guys 427 ls3 4.070 x 4.100 11.5 compression a 408/402/396 smaller bore will and can make around the same HP. The added .100 to .200 stroke eats up duration.

https://www.yellowbullet.com/forum/s....php?t=1204610
would a 408 - 4.030 x 4.00 or 396 - 4.030 x 3.9 combination with the same H/C/I be that much down on power. Not @ all the engine will RPM more and lose some TQ but Hp will be about the same with a hair more Rpm. Add more compression for more HP. 800 ain't about nothing anymore... even with junkyard iron blocks N/a. Flyin took my thoughts and ran with it. I'm trying to keep up.

Last edited by Patron; 09-14-2018 at 11:40 AM.
Old 09-14-2018, 11:32 AM
  #44  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,836 Likes on 1,145 Posts
Default

Thats cool on the EWP. I consider redoing mine to get it off the engine cover. On NavyBlue his coulda cammed bigger and made a number for no cost difference.

But if youre not worried about driveability, then yeah, L92 heads, cam and rev the **** out of it
Old 09-14-2018, 12:08 PM
  #45  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

Dry sump and Lsx block after machining is what like around 6 - 7 grand .... HP to cost ratio...

6.0 stock crank, Ls3 heads, E85 solid roller.......
https://ls1tech.com/forums/dynamomet...-8000-e85.html

Last edited by Patron; 09-14-2018 at 12:18 PM.
Old 09-14-2018, 05:56 PM
  #46  
TECH Addict
Thread Starter
iTrader: (57)
 
ragtopz28's Avatar
 
Join Date: Aug 2007
Location: Ft. Myers, FL
Posts: 2,014
Likes: 0
Received 9 Likes on 8 Posts

Default

You guys got me excited now! I was hoping for the 600-700 range. If it closer to 700 or over I will be pumped. (should be deep in 9's N/A)
One more time, here is what I do know for sure:
I already have - FAST 102 w/mid runners, NW 102, NO102 plate, K1 3.90 crank, Compstar 6.125 rods, LQ4 block currently @ 4.005, good flowing exhaust, S60, Built 4L60 (fingers crossed, haha).
To do:
-Upgrade fuel system (in progress)
-Send 821's to FED for their stage 1.5 w/Manley valves
-Order some forged 4.030 high compression pistons (13-14:1) any suggestions?
-Have block bored to piston specs, balance rotating assembly, cam bearings, etc. I'll debur before delivering to machine shop.
-Order up max effort LLSR cam, lifters, rockers, springs, pushrods (this is where the $$ is)
-Assemble

Do I have the order correct? What size injectors do you think I'll need?

Thanks,
Old 09-14-2018, 06:57 PM
  #47  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

Compression 14.1 +
Vacuum pump
Crank scraper
Use thinner rings if possible
Electric water pump 50 gpm from and by Jegs under 500 bucks....

Depending on fuel used: 62 lbs hr or 650cc for e85 is good to 800 hp
https://www.raceworks.com.au/calcula...hp-calculator/

If you do Nothing else lose as much weight as possible! I'm trying to get my s10 below 2700 lbs easier to get a quicker ET. A heavy car kills a good engine ET!

Last edited by Patron; 09-14-2018 at 07:06 PM.
Old 09-14-2018, 07:17 PM
  #48  
TECH Addict
Thread Starter
iTrader: (57)
 
ragtopz28's Avatar
 
Join Date: Aug 2007
Location: Ft. Myers, FL
Posts: 2,014
Likes: 0
Received 9 Likes on 8 Posts

Default

Originally Posted by Patron
Compression 14.1 +
Vacuum pump
Crank scraper
Use thinner rings if possible
Electric water pump 50 gpm from and by Jegs under 500 bucks....

Depending on fuel used: 62 lbs hr or 650cc for e85 is good to 800 hp
https://www.raceworks.com.au/calcula...hp-calculator/

If you do Nothing else lose as much weight as possible! I'm trying to get my s10 below 2700 lbs easier to get a quicker ET. A heavy car kills a good engine ET!
Do I NEED a vacuum pump?
Crank scraper = no brainer
Thinner rings? explain please
E-water pump = yep

Gonna run C16

She's pretty light now... for a T/A (3050# w/o me). Driver mod, yeah there is about 25# needed there, haha.
She runs 9.90 @ 136 and a 1.34 60' now with a SBE 6.0, cam, L92's and a 150 shot.

Last edited by ragtopz28; 09-15-2018 at 12:51 PM.
Old 09-15-2018, 03:43 AM
  #49  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

Do I NEED a vacuum pump?
https://www.dragzine.com/tech-storie...-vacuum-pumps/
https://www.lsxmag.com/tech-stories/...s-vacuum-pump/

Thinner rings? explain please
1mm = .039"
.043 is .043"
1.2mm=.047"
1.5mm=.059"
1/16=.0625"

2mm oil=.079"
3mm oil=.118"
4mm oil=.158"
3/16"=.1875 *
Thinner rings may be Great for NA But you need to check and see what's the recommended rings as you did say a power adder in a 150 shot. Here's another concept with thinner rings for a NA build...Would it work with a power adder? Maybe?

https://www.dragzine.com/tech-storie...ble-effective/
As a clever workaround, SAM Tech replaced the COPO LS7’s standard .043-inch top and second rings with thinner .027-inch Total Seal units. The reduced surface area offered by the thinner rings cut down on friction and provide superior conformability to improve cylinder seal.
Nevertheless, thinner rings are more prone to flutter, which would usually be a bad thing if it wasn’t for Total Seal’s ingenious solution. By matching the thin rings up with gas-slotted ring spacers, the result is additional ring support and further enhanced ring seal. “The horizontal slots in the spacers work like gas ports. They route cylinder pressure behind the rings to force the ring face into the cylinder wall,” Judson explains. “This means you can run lower-tension rings, reduce friction, and still have great ring seal. As cylinder pressure decreases in the later stages of the power stroke, the slots allow the pressure behind the rings to bleed off quickly, reducing ring drag.”
Ideas of what can be done:

Weight: 3150 Et: 8.01... 408 hydraulic roller with a Small Shot!
https://www.yellowbullet.com/forum/s....php?t=1129914
1.16 60ft on radials with 4l80 trans no brake
https://www.yellowbullet.com/forum/showthread.php?t=563240&highlight=

Flyin's 416 13.5 comp CID intake...Cam specs of .xxx @ .050? So funny as I KNOW them and they will never be listed...LOL! Been F'ing with Flyin since he did the 1st build and help list Ideas for 800 and it worked out Perfectly! He was making 700 and running 9's then. Now.....
807.9hp @ 8100
611.3ft lbs @ 6100
Weight: 2780
1.29
5.635
123.43
8.88 @ 152.15
I'm on a few forums and chat with others.......Got a friend on here running 9.0's with a hydraulic roller + 15.0 compression also NA. track only and the cars kinda light @ under 2900. Wait till he goes Solid roller....8's anyone?

Keep it simple . As it is Simple.
(intake, compression, power and exhaust) We just add more to Each for more POWER with RPM and try and NOT to Bottleneck the HEADS. More cam lift = more air and fuel. More compression = HP. More fire or ignition = clean burn...more hp...getting it out with a stepped 2 inch header.Try to stay under .800 lift with springs....PAC .750 lift springs are pretty reasonable...PAC-1238X......That's for you and your cam guy.

I got you on that also FREE and you can compare with Cam Motion. I compared Controlled Induction *computer profile* Vs what I called in for: Had to back up off 8500...8200 is good.

Computer: 270.5 / 287.5 @ .050 lift .749 / .734
Real: 269 / 286 @.050" lift .778"/.797" Net Valve Lift (after Lash)

https://www.yellowbullet.com/forum/s....php?t=2523863

Last edited by Patron; 09-15-2018 at 03:52 AM.
Old 09-15-2018, 07:12 AM
  #50  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,836 Likes on 1,145 Posts
Default

I suggest 650cc injectors. I have 42's and they went static. Talk to lance about his coils too for spark energy. 4x the power of stock at least and can handle 8-ms dwell all day long.
Old 09-15-2018, 09:03 AM
  #51  
10 Second Club
 
big hammer's Avatar
 
Join Date: May 2009
Location: over dere
Posts: 3,428
Received 152 Likes on 104 Posts

Default

Ls3 heads are very regarded
Old 09-15-2018, 02:58 PM
  #52  
TECH Addict
Thread Starter
iTrader: (57)
 
ragtopz28's Avatar
 
Join Date: Aug 2007
Location: Ft. Myers, FL
Posts: 2,014
Likes: 0
Received 9 Likes on 8 Posts

Default

Originally Posted by big hammer
Ls3 heads are very regarded
Haha, you are preaching to the choir....some will never be convinced.
Old 09-15-2018, 06:05 PM
  #53  
TECH Addict
Thread Starter
iTrader: (57)
 
ragtopz28's Avatar
 
Join Date: Aug 2007
Location: Ft. Myers, FL
Posts: 2,014
Likes: 0
Received 9 Likes on 8 Posts

Default

Originally Posted by Darth_V8r
I suggest 650cc injectors. I have 42's and they went static. Talk to lance about his coils too for spark energy. 4x the power of stock at least and can handle 8-ms dwell all day long.
Thanks, so 60's huh. Any particular brand. My tuner said something about some are more "tune" friendly that others.
Also, my truck coils aren't going to cut it? Got a link for those coils you speak of?
Old 09-15-2018, 07:18 PM
  #54  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

I'm bored is there any thing else I can help you with.....
Old 09-15-2018, 09:46 PM
  #55  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,836 Likes on 1,145 Posts
Default

Originally Posted by ragtopz28
Thanks, so 60's huh. Any particular brand. My tuner said something about some are more "tune" friendly that others.
Also, my truck coils aren't going to cut it? Got a link for those coils you speak of?
If I am getting shelf injectors i usually use FIC. If I need a one off I go with Pantera efi.

Its best to call lance. Panteraefi.com
Old 09-15-2018, 09:48 PM
  #56  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,836 Likes on 1,145 Posts
Default

Here is a pic of the coils installed.

H/C/I opinions for 398"-photo532.jpg
Old 09-15-2018, 09:52 PM
  #57  
Teching In
 
TexasHavoc88's Avatar
 
Join Date: Oct 2017
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default

Interesting info in here. Def a good read and links 👍
Old 09-16-2018, 06:21 AM
  #58  
TECH Addict
Thread Starter
iTrader: (57)
 
ragtopz28's Avatar
 
Join Date: Aug 2007
Location: Ft. Myers, FL
Posts: 2,014
Likes: 0
Received 9 Likes on 8 Posts

Default

Originally Posted by Darth_V8r
Here is a pic of the coils installed.

Attachment 706889
Nice, I'll check them out.
Is that the FED lo-pro intake? And it looks like you are still on the stock fuel feed line??
Old 09-16-2018, 08:09 AM
  #59  
Banned
 
Patron's Avatar
 
Join Date: Apr 2017
Posts: 948
Likes: 0
Received 1 Like on 1 Post
Default

Called these in about a month ago....
https://www.texas-speed.com/p-5636-f...es-high-z.aspx
For you.....
https://www.texas-speed.com/p-5638-f...es-high-z.aspx
Old 09-16-2018, 10:10 AM
  #60  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,836 Likes on 1,145 Posts
Default

Originally Posted by ragtopz28
Nice, I'll check them out.
Is that the FED lo-pro intake? And it looks like you are still on the stock fuel feed line??
Its a holley sniper low profile I picked up cheap. Just a stop gap until life settles down and I can move forward with ITB. Way better than stock ls7 intake.

And yes, still on the stock fuel connector. It has not failed yet. Of course now I say that and it will


Quick Reply: H/C/I opinions for 398"



All times are GMT -5. The time now is 07:59 PM.