Shouldn't my car be making more power? Dynojet
10-02-2012, 04:13 PM
#1
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Shouldn't my car be making more power? Dynojet Mod list below. My car made 450 rwhp on a dynojet. Is this about right? I feel a tad shorted. My clutch was giving out as we did the pulls as well as the LS6 restricting me a bit as well. Ideas on what I should make?
383c.i. SHORT-BLOCK - 24X RELUCTOR GM LS1/LS6 Engine Block,
Bare Callies CompStar 4.000 Inch Stroke LS1 Crankshaft,
24X Reluctor Callies Compstar 6.125' H-beam Connecting Rod Set Torque Plate, Balance Rotating Assy.,
ARP Main Stud Kit for LS1/LS6-Based Engines GM LS1
Oil Restrictor GM LS1 Oil Galley Core Plug GM LS1 Large
CYLINDER HEADS Precision Race Components CNC Stage 2.5 LS6 Cylinder Heads, Bare 2.02-Inch Stainless GM LS7 Lifter
Head In Motion LS1 Double Roller Timing Set w/ Torrington Bearing Texas Speed & Performance Ported & Shimmed LS6 Oil Pump
ARP LS1/LS2/LS6 Camshaft Bolt Kit GM LS2 Lifter Tray GM Camshaft Retainer Plate GM Cam Retainer Plate
Bolt GM LS1/LS2 Timing Cover Gasket GM LS1/LS2 Rear Main Seal Housing Gasket GM LS1 Valley Cover
Gasket GM Oil Pump O-Ring for LS1/LS6 GM LS1
Texas Speed & Performance Tsunami Camshaft: 235/240, .653'/.609', 111 LSA Texas Speed & Performance 7.40 Chromemoly Pushrod, Per Pushrod, MGW Shifter, SLP Headers, TSP True Duals, SLP Lid, LS6 Intake swap. RAM powergrip clutch. ASP underdrive pulley.
383c.i. SHORT-BLOCK - 24X RELUCTOR GM LS1/LS6 Engine Block,
Bare Callies CompStar 4.000 Inch Stroke LS1 Crankshaft,
24X Reluctor Callies Compstar 6.125' H-beam Connecting Rod Set Torque Plate, Balance Rotating Assy.,
ARP Main Stud Kit for LS1/LS6-Based Engines GM LS1
Oil Restrictor GM LS1 Oil Galley Core Plug GM LS1 Large
CYLINDER HEADS Precision Race Components CNC Stage 2.5 LS6 Cylinder Heads, Bare 2.02-Inch Stainless GM LS7 Lifter
Head In Motion LS1 Double Roller Timing Set w/ Torrington Bearing Texas Speed & Performance Ported & Shimmed LS6 Oil Pump
ARP LS1/LS2/LS6 Camshaft Bolt Kit GM LS2 Lifter Tray GM Camshaft Retainer Plate GM Cam Retainer Plate
Bolt GM LS1/LS2 Timing Cover Gasket GM LS1/LS2 Rear Main Seal Housing Gasket GM LS1 Valley Cover
Gasket GM Oil Pump O-Ring for LS1/LS6 GM LS1
Texas Speed & Performance Tsunami Camshaft: 235/240, .653'/.609', 111 LSA Texas Speed & Performance 7.40 Chromemoly Pushrod, Per Pushrod, MGW Shifter, SLP Headers, TSP True Duals, SLP Lid, LS6 Intake swap. RAM powergrip clutch. ASP underdrive pulley.
10-02-2012, 04:49 PM
#4
I'm an automatic but have 2 friends with Monster stage 3s and I would call them severe overkill...driveshaft destroyers. Something a little less aggressive would do you well, surely someone who knows more will chime in.
The Fast 92 or 102 either one would work, but the 102 takes a little more to make it fit with the stock rails and injectors.
The Fast 92 or 102 either one would work, but the 102 takes a little more to make it fit with the stock rails and injectors.
10-02-2012, 04:53 PM
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yea friend had the 102 with ls2 fuel rails and had to do ALOT of work. I dont want to change the 10 bolt for a while so I think ill stick with 92 and races from a roll. That should help right? The rear only gets really stressed from digs?
10-02-2012, 05:08 PM
#6
I say for the mods you have that's some pretty good power:
- You have less than stellar OEM heads not killer aftermarket ones or with top of the line portings.
- For the displacement, that's a rather small cam
- Stock intake manifold
If you upgrade heads to some other high end porting job, along with a bigger cam and a FAST setup I can see this being in the high 400s or close to 500.
- You have less than stellar OEM heads not killer aftermarket ones or with top of the line portings.
- For the displacement, that's a rather small cam
- Stock intake manifold
If you upgrade heads to some other high end porting job, along with a bigger cam and a FAST setup I can see this being in the high 400s or close to 500.
10-02-2012, 05:11 PM
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I was tryin to find stickies for porting out my own intake and TB, is it worth it? or just save up for FAST? and its my DD i was worried about 2 much cam. idk if im going to open her back up anytime soon. I am at the part of my build where I want to just relax and enjoy her. So intake and clutch will be last mods until I save up for rear.
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10-02-2012, 05:22 PM
#8
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The heads are not the issue. I have witnessed the PRC 2.5 LS6 heads make great power. Stick a Fast 102 intake and PTM 102mm tb combo on it along with at least an 85mm Maf. This should help you gain the power that you are looking for.
10-02-2012, 05:39 PM
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Its not that I am looking for more power, still being on a 10 bolt and stock trans. I was just making sure that the numbers fit. I want to just get her to where shes 100% with mods I have. Along with porting out the easy things such as TB, but like I said is the intake able to be ported?
10-02-2012, 06:47 PM
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its being towed to shop this week, i was going to ask for about 400 what would be the best. I got an offer from someone twin disc mcleod for 450 plus shipping. If i do add the intake and rear I wouldent want to get another clutch so what do you guys think? the mcleod is slightly used about 600 miles and comes with aluminum flywheel.
10-03-2012, 04:41 AM
#14
I have a H/C/I 383 6 speed and on a mustang dyno i put out 490 rwhp with a stock ls6 intake get a bigger one and youll be around that 550 mark and i get around 300 miles to the tank. I say ls6 is part of my H/C/I because a 2000 came with a ls1 intake and friend got a 102 and gave me his ls6 intake
either something is off with your posts or you are really asking why the difference in the dyno results. which even itself is odd as mustang dynos put out lower numbers while dyno jets "fluff" the numbers and read higher usually.
Last edited by usnfenix; 10-03-2012 at 07:42 AM.
10-03-2012, 08:41 AM
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The FAST 102 on an LS1 is a PITA. You need to run different fuel rails and an LS2 water pump I believe. Or at least gring the **** out of the LS1 water pump. Either way dont waste your money on a new one. Get a used 92mm.
10-03-2012, 10:25 AM
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I don't think I'm *busted* i have the sheets saying I made the 490, but something was wrong with the car when I brought it down from maryland. I had to cut my exhaust off to get it on the auto train as well as get diff exhaust on and the car was gavin some misfire problems as well as some other issues with spark plugs and such. I got it to phil and it only was making 390 on the first pull. After we got everything tuned it made about 450, which is why I started this thread asking if that felt right. So the mustang did *fluff* the numbers apparently. No reason for me to lie about numbers, but yes its the same build.
10-03-2012, 10:43 AM
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Just got off the phone my custom exhaust from the shop was pinched at 3 different places which he said was killing my hp maybe by 15-20, as well as my clutch problem being that when they installed it they plugged in the sensors to the wrong side, reverse solenoid and temp sensor so that should be the other part of it. That explains a lot lol
10-03-2012, 11:48 AM
#19
no one was accusing you of lieing just you had conflicting posts that needed clearing up. if the above was the case of you not knowing why the dynojet gave you lower numbers than your mustang dyno run you should have stated that in your first post, would have helped clarify the situation.
how you get 300 miles to a tank with a 383 and a tsunami cam is beyond me though. i get 270 to a tank with my mustang and its pretty much stock and it averages 16mpg. gas tank holds the same ammount as the ls1. you must be really, really light footed.
10-03-2012, 12:32 PM
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Sorry for the confusion, I did not expect for old threads tone brought up. I assumed everyone would just read what the current problems are and go from there. And as far as the mpg it was a long road trip and yes i was cruising for awhile in 6th join about 80, and I had just cleaned air filter and fuel system. Besides that talked to tech just now again and clutch is just gone. I will provide link if you want to see pics. My name is Andrew Fuller should be 14 pictures on their page. https://www.facebook.com/pages/Power...73972269323599