04-13-2017, 09:19 PM | #1 |
Drives: 1993 Chevy silverado 1500 5.7 Join Date: Apr 2017
Location: Utah
Posts: 3
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Factory blower vs Whipple options
Hi all, so this is my first post on here and I'm planning on dropping in an LSA crate engine into my truck, a 1993 Chevy Silverado 1500 four wheel drive, and was wondering how the factory supercharger compares to an option from Whipple. If the factory blower is better than a Whipple then who can I get a higher boost pulley from? I'm looking to make around 800 horsepower at the wheels through a TCI six speed 4l80e and either a np261 or a F**d np205 with a GM 32 spline input shaft. Thanks in advance.
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04-14-2017, 08:08 AM | #2 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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Whipple displaces more and would be a better choice because it moves more air. Confirm with Whipple they have an option that will work with the LSA. I know Kenne Bell and Magnacharger have LSA options. The LSA stock blower is a nice piece but has to be overdriven into the danger zone to hit the numbers you mention.
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04-14-2017, 08:35 AM | #3 |
Drives: 72 Chevelle Join Date: Jan 2013
Location: Texas
Posts: 116
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800 hp...Whipple all day over stock or any other aftermarket brand supercharger for that matter. You won't get that out of a stock blower, even if reworked, pulley swaps, etc. Also, if you are going to be pushing 800 ponies, you may need to check the limits on the stock pistons of an LSA and make sure they are capable of handling that amount of power. Don't know what your budget is, but you would probably be better of building an LS block from scratch with forged internals for that kind of power. A stock LSA is only about 550 hp and depending on where you buy, costs about $12k and up. You could buy a Whipple 2.9 and build you a nice LS motor for that price if you shop around and find deals on this forum or if not....just a tad bit more money from several online shops/vendors.
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04-14-2017, 10:59 PM | #4 |
Drives: ZL1 Join Date: Dec 2016
Location: New Orleans
Posts: 261
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You might just consider getting a LS9 engine instead of a LSA. However there are many LSA engines making in the 730 to 760 rwhp on pump gas and even the numbers you are seeking on E85. If tuned properly the LSA pistons will and have been handling meggar horsepower numbers.
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04-14-2017, 11:07 PM | #5 |
Drives: 1993 Chevy silverado 1500 5.7 Join Date: Apr 2017
Location: Utah
Posts: 3
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K, although I'm starting to consider building a big block chevy with coil near plug ignition, port injection thanks to a Whipple blower manifold, and either an 8-71 blower or a 10-71 blower. Don't really understand what the difference is between the two of them are, I'll have to see what Google has to say about the differences and how much boost a certain pulley combo will net. But oh well, if it must be done then it will
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04-16-2017, 09:26 PM | #6 | |
Drives: 2013 ZL1 A6 #7860 Join Date: Apr 2014
Location: CO, USA
Posts: 1,279
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04-16-2017, 09:39 PM | #7 |
Drives: 1993 Chevy silverado 1500 5.7 Join Date: Apr 2017
Location: Utah
Posts: 3
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K, I'll remember that if I do choose the LSA, although with drive train losses that'd be around 1000 horsepower at the crank although I'm currently pricing out a 509 Big Block with C.N.P. ignition, port injection, and an 8-71 blower that I'm looking to make 1000-1200 crank horsepower. Although I do need to know, will the same E67 ecm work for the 509 as it does for the LSA? And what sensors will I need to run either one? Just MAF, MAP, and O2 sensors? Or will I also need coolant temp sensor, oil pressure sensor, knock sensor, etc? Thanks in advance.
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04-18-2017, 08:23 AM | #8 |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 631
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Very Impressive numbers with stock heads. Are you on nitrous, E-85 or meth to achieve 763 RWHP? One of mines is making (SAE) 733rwhp (A6) on pump gas with Livernois head work and goodies.
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04-18-2017, 10:58 AM | #9 | ||||
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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And I'll show you why. Well first off let's look at some of the pros out there, Vengeance, who is one of the best LS shops, only gets about 780 RWHP out of the LSA on their Stage 5 X package (Baddest it gets). Keep in mind, they're listing their numbers in CRANK HP not rear WHEEL HP. http://vengeanceracing.net/packages-...amaro-zl1.html 4.5” Cold Air Induction Nick Williams 102mm DBW Throttle body Ported Supercharger | Inlet | 102mm Snout Vengeance Racing -12 AN Fitting/Line Upgrade for ZL1 Lid 2.55” Upper Pullley Solid Isolator ATI LSA Overdrive Balancer 9.5” Overdrive Ring Crank Bolt Idler Relocation Kit Appropriate serpentine belt Alky Control Dual Nozzle Methanol Injection System VP M1 Methanol Mast Motorsports or Trickflow 255 CNC LS3 Cylinder heads GM MLS Head Gaskets ARP Head Studs High Performance Lifters GM Lifter Trays Vengeance Racing Custom Camshaft Vengeance Racing Dual Spring Kit w/TI Retainers ARP Cam Bolts 3 Bolt Timing Gear Vengeance Racing Hardened Pushrods Trunion Upgrade Katech C5R Timing Chain Melling High Volume Oil Pump All Gaskets & Seals Billet Catch Can with AN Lines/Fittings Vengeance Racing Valve Cover Breather 160* Thermostat Vengeance Racing Heat Exchanger system High Capacity Trunk Mount HX Coolant Tank with pump Vengeance Racing High Temperature Protective Heat Sleeves NGK TR7IX Spark Plugs American Racing Stainless Long tube Headers with 3” X pipe GM MLS Exhaust Manifold Gaskets High Flow LSA Fuel Injectors High Capacity Fuel System Vengeance Racing Flex Fuel Kit E85 Flex Fuel Let's look at a build I'd call max effort: 9.1 + 2.5 Pulleys (As much as safe), big cam, ported heads or aftermarket heads, E85, Meth injection, ported blower/snout, 4.5" intake, and straight 3" exhaust. This is a full on MAX Non-nitrous LSA and is going to be really uncomfortable on the street as well as quite unreliable for any kind of long distance stuff with crazy IAT temps in cruises (traffic, slow etc.). I'd bet that above list would make 780 RWHP. Now if you were going to spray the car, you're talking even faster wear and tear on the engine. OP, it sounds like you're building a show truck or a car show pop the hood look at me truck? If so, you do NOT want this max effort build, at least I'd never do it. You can toss your reliability right out the window. Now, you could come down about 60 RWHP from the above setup and still have a reliable setup. What parts? Well, scrap the 9.1 or a 8.6. Ditch the aftermarket heads, and forget the Meth injection. (You can do these things because your temps will be lower). Now you're looking at around 700-715 RWHP if not a tad more and you're way more reliable than the above. Quick numbers: $12,000+ LSA. At least $15,000-$20,000 in mods + a bunch of labor. You're north of $30,000 now in engine. If I was you, I'd go buy an LSx and put a Procharger on it. 800 RWHP would be conservative on such a setup. OP, I can give you all the numbers and info I can on pulleys and all that to save your googling if you want to PM me. |
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04-18-2017, 12:26 PM | #10 |
Drives: ZL1 Join Date: Dec 2016
Location: New Orleans
Posts: 261
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I would go whipple over the pro charger if there is a whipple set-up for the LSA engine. Tom Nelson have stated several times that the prochargers are very demanding on the front main bearing. Posting big horsepower numbers and backing it up in the 1/8 and 1/4 are two different stories, I've been very impressed with Livernois hp numbers matching their track numbers down the track. I see so many shops posting crazy hp numbers just not backing it at the track and hats off to Livernois, their cars have put down some very impressive numbers with the horsepower they deliver.
Last edited by Little Walter; 04-18-2017 at 12:55 PM. |
04-18-2017, 01:43 PM | #11 | |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 631
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Can'tHave2MuchHP just as info on the pulley sizes you can go all the way up to a 10.5 if desired on the lower and a 2.85 on the upper I know with innovators west and metco. There are several 9.5 lower and 2.5 uppers running around with many miles with no reliability problems (bearings or charger internals) whatsoever according to all the respected shops that is a very safe combination, also with a very good heat exchanger there is not any out of the ordinary high IAT issues. OP I am not trying to side track your post by the way. However there are some LSA engines posting some big numbers, the highest that I can recall from my memory on 93 pump fuel was a M6 that Livernois did that made somewhere close to 770rwhp. As someone stated earlier in the post there are many that are making big hp numbers but for whatever reason not reflecting those numbers at the track. The 1.9 charger is small but very efficient and makes it's horsepower quick there are some bigger chargers that takes a little longer to build the horsepower. So if you are just after a high horsepower number you do have options. If you want 1/8 mile low et's the 1.9L makes power very quick, if you are adding other power adders (E85,meth, nitrous, race fuel for more timing) then 800rwhp might be very doable with head work, cam kit, injectors, charger porting and a upgraded fuel system. With the proper tune the bottom end of these engines are living.
Last edited by Dega Man; 04-18-2017 at 07:21 PM. |
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04-18-2017, 10:07 PM | #12 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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Frankly I don't really care what certain people have done out there. 9.55 + 2.55 is entirely too much. No need to argue. While it can be done and people do it, it's kind of like crack, sure it's done but no it's not good for longevity and no you can't tell side effects until it's too late, in this case, expensive.
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04-18-2017, 10:09 PM | #13 | |
Drives: 2013 ZL1 A6 #7860 Join Date: Apr 2014
Location: CO, USA
Posts: 1,279
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04-18-2017, 10:11 PM | #14 | |
Drives: 2013 ZL1 A6 #7860 Join Date: Apr 2014
Location: CO, USA
Posts: 1,279
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