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Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
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#21
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Very nice fabrication work there, Rob. I see good fab work every day in my job. I see a lot of extra effort in your packaging efforts that some would miss.
Tom Vaught
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#22
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Looks great, lemans411.
How thick is sched 10 compared to sched 40? Also, who's bonnet is that?
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#23
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Sch 10 3" is .120 wall
sch 40 3" is .220 Great looking set up, looks like tha rad is going to be tough getting it in without removing some piping? Did you polish the tubing or have it coated? |
#24
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looks killer. you might want to test a diff. carb hat(csu's or extreme volicity) against yours while you're on the dyno. i bet it make 1,000hp easy
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1973 ventura pump gas street car -NA-10.68@126.6mph/ N2O-9.97@136.6, 3645# 1968 procharged firebird 5.66@123mph 1/8mile-F-2(22#boost), CSU E-85 carb, 477 IA2, 315cfm Butler E-heads, and factory suspension, 3580#. 939RWHP@25#boost thanks to Butler Performance, CSU carbs, and All Pontiac. |
#25
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What Piston dish? whats your comp ratio? How did you get it low enough with e-heads? Thanks! I am Picking up a 108mm custom Job here soon so doing research, Thanks!
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
#26
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Nice! And 1000HP on a 535 should be no problem with boost, will probably overshoot that. How much boost are you going to start with?
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. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
#27
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planning on starting as low as i can . and come up from there maybe 5 psi. never tuned a turbo motor before so i will be taking it slow. got a whole 8 hour dyno day
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-Rob 67 LE MANS in pieces... 68 gto 84 grand prix twin turbo 496 pontiac 25.3 cage |
#28
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8.5 static? Shoot, you should start around 9 at least! My guess, intercooled, you're going to be around 16 psi on pump gas easy.
.
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. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
#29
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nice. what trans/rear end you running?
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Tod Hoffmann 1966 GTO Montero Red Hardtop - Holley EFI'd 462, KRE DPorts/Muncie 4spd 1990 Chevy 454SS pickup - Accel DFI/T56 6spd - Hot Rod Power Tour Long Hauler 1996 Chevy K2500 ECSB 'Poopy' 2002 Honda VTX1800C 2016 Cadillac CTS Premium My project thread: http://forums.maxperformanceinc.com/...d.php?t=516826 |
#30
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I'm telling you man, turbo is the answer for so many A-body problems. First of all, headers suck. But look at those turbo manifolds, awesome! No more oil filter or starter issues, and four speed clutch linkage is not an issue. Next is cylinder head flow. No problem, just blow it in!
I also like how a turbo brings in air from the from versus a blower having to put a big horseshoe in the piping or suck air right off the header. That really has me thinking about doing it. What kind of turbo would it take to make 700 hp with a 461 and KRE d-ports? |
#31
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Wow, that's going to roast the tires until the cows come home !
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Knock Knock Knockin' on 11's Door '70 Judge, Palladium Silver w/Red Interior Powered by SD Performance, Ported 6X Heads 501 HP, 554 ft lbs TQ 12.14 ET @ 114 MPH , Supercase Muncie M22, 3:55 Suspension: HO Racing, BMR< Sykorat, and Bilsteins Narrowed 12 bolt , 16x8 VintageWheel Works, Comp T/As on street, MT Drag Radials @ Strip http://www.sdperformance.com/custome...1.php?carID=42 |
#32
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Hey Thanks!, What rod length and who made the Pistons?
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
#33
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Quote:
"8.5 static? Shoot, you should start around 9 at least! My guess, intercooled, you're going to be around 16 psi on pump gas easy." A LOT of people miss the fact that that 1/2 ratio of lower compression also equals a lot more fuel and air pushing down on the piston. Why mess around with a "Lady Finger" push on the top of the piston when you can have a "M-80" push doing a lot more for you. Only reason for higher compression on a boosted engine is if you run alcohol or you are trying to get transient response and fuel economy. With a 83mm turbo it is not going to spool like a T-3 Buick GN turbo. Tom Vaught
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#34
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i went a little low because i am trying to make it as safe a tune as possible. still a newbie to turbos though. oh yeah its running on E85 too i am having a th 400 with a brake built. and i have a moser fab9 with 35 spline axles and 3.5 gear with a spool Quote:
they are 6.700 length rods and je pistons Quote:
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-Rob 67 LE MANS in pieces... 68 gto 84 grand prix twin turbo 496 pontiac 25.3 cage |
#35
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I Think you'll be plenty Good, I'm picking up One custom made for another Pontiac 535 thats a 108mm with GT wheel Technology that i will be using, Should be Insane no matter what! BTW Awesome job on the Fab Work!
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
#36
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Info on the 83mm Garrett Turbo from the LS-1 Forums:
"I looked on here and did find a little info on it. Compressor Wheel Inducer ( mm ) - 83mm Compressor Wheel Exducer ( mm ) - 101mm Turbine Wheel Inducer ( mm ) - 101mm Turbine Wheel Exducer ( mm ) - 91mm Turbine Inlet Flange - T-6 Turbine Housing Outlet - 5 Inch V-Band My A/R is 1.08 We have the comp map for it I believe, its still available. Its an older TV84 unit and will flow around 93lbs/min. Not a good flowing wheel and spools slow. Also its an older flat back wheel which is hard to find any upgrades for as well." (Is your Turbo Specs similar??) Still 93 lbs per minute times 10.5 hp per lb of air per minute = 976 hp. Almost a 1000 hp at the engine for your set-up. Tom Vaught ps John Welter had a 106mm Turbo and went 6.80s in the quarter, how fast do you want to go 440GP69?
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#37
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Cool another boosted Ponti. With an intercooler and E85 you'll have boost for days on conservative timing. What's your timing retard plans and WOT timing?
What head gaskets are you running and I'm sure you've got a wideband in a pillar to monitor everything right?
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69 GTO Convertible, 4000lbs 462ci, 606tq/569hp - 93 oct at 34 deg (207psi) 11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump |
#38
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I was wondering, do most people mount the turbo on the frame that way? It seems like you are going to have a hard time getting it going on the dyno without some bracketry to hold the turbo, or will the piping hold it up temporarily while you dyno?
Seems like it would be more stable if it were mounted to the motor like a blower and that way there wouldn't be the motion between the engine and the frame to deal with. Maybe you wouldnt need the flex joints? Just wondering as I dont know anything about turbos or blowers for that matter. |
#39
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Most Should Mount it with the Engine Because when the Engine Twists in the frame you don't want the turbo mounted on the frame otherwise you will be breaking some parts unless you use flex tubing
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
#40
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I can see where mounting it on the frame would possible make the turbo run a little cooler, especially if the bracket was a big enough heat sink, but I can definitely see the advantages of mounting it to the engine as well. I was only asking because right now my frame is getting ready to be powder coated and I would want to wait on it if I thought I might go turbo and needed to mount it to the frame.
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