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Old 01-18-2011, 12:34 AM   #1
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ETS Horsepower?

Ok im starting my HCI Swap soon and I am wondering what's the ets rear wheel Horsepower my car will put out (I will have it on a dyno and tuned) but what I have so far is ( stock 302 lower end, Edelbrock Performer Cam .498 lift, Edelbrock Performer Heads, Edelbrock 1.6rr, Edelbrock Performer 5.0 intake, new timing chain set, 70mm throttle body, 75mm mass air with 24lb injectors , MSD Distributor and MSD ig box, Steeda underdrive pulleys, steeda cold air intake, BBK 190 fuel pump with pressure regulator, Bassani equal length headers, Bassani off road x-pipes , flowmaster 2 chambered catbacks, smog delete, aluminum drive shaft, 4.10s, Pa racing C4 trans 2200 stall, ) plus a few little things here and there! What do you's think?
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Old 01-18-2011, 12:55 AM   #2
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Re: ETS Horsepower?

260hp at wheels is my guesse..just my opnion though.
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Old 01-18-2011, 01:33 AM   #3
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Quote:
Originally Posted by svtlx
260hp at wheels is my guesse..just my opnion though.
260!?
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Old 01-18-2011, 10:30 AM   #4
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Quote:
Originally Posted by svtlx
260hp at wheels is my guesse..just my opnion though.
Only 260? ....... On Edelbrock's website is claiming that there power package that's below the one I have with a cam that's only (.445 lift) a step up from stock with a 306 block is putting out 321hp and 337tq , now I know that's only on paper and that block is only 4cu.in. Larger but with my heads which are bigger and my cam , I can't see only 260hp when my car is 240hp at the crank stock , idk.... I guess I'll have to see when I dyno & tune it!!!

Heres the page with the info about the power package with the setup that's smaller then mine!

http://www.edelbrock.com/automotive_..._estreet.shtml
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Old 01-18-2011, 11:38 AM   #5
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Re: ETS Horsepower?

honestly, im sure that 321hp is accurate, but that's at measured at the crank. when u subtract the hp u lose through the trans, drive shaft, rear end gears, turning over heavy rims and tires.....260hp at the at the wheels i think is a reasonable gueese. also, there is noway on gods' green earth that you are meking 240 at the crank on a stock 302...a 351 makes 250-260 at the crank stock.

at the crank and at the wheels hp are two differnt worlds. you loose lotsa hp through the drive train. i think most of the veterns here wit that been building motors for awhile would agree wit me. anyway, like i said, it's just a guesse. but experience tells me that you 24lbs inj will only squeeze out hp within a certain window. and 350hp at the crank wit 24lb inj. would be right at the limit. which in turn only yields 290-310 at the wheels depending on manual or auto trans. an auto trans soaks up more hp than a manual by the time the hp gets to the wheels.
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Old 01-18-2011, 11:43 AM   #6
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Re: ETS Horsepower?

is that an engine dyno? If so 260 is after it goes through the trans and rear end~ that might not be that far off, but not sure how the 321/337 is measured~

240 stock is also at the flywheel, take 17-18% off that to get your rear wheel numbers


say 330hp at engine * .18% drivetrain loss = 60hp~ so 270rwhp~

240hp * 18% = 43 hp so 197rwhp
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Old 01-18-2011, 11:48 AM   #7
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Re: ETS Horsepower?

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Originally Posted by SpectorV View Post
is that an engine dyno? If so 260 is after it goes through the trans and rear end~ that might not be that far off, but not sure how the 321/337 is measured~

240 stock is also at the flywheel, take 17-18% off that to get your rear wheel numbers


say 330hp at engine * .18% drivetrain loss = 60hp~ so 270rwhp~

240hp * 18% = 43 hp so 197rwhp
he rattled off the parts...my guesse was 260 at the wheels..over 300 at the crank. but he said he was getn it dynoed. and for wut he said he was putn in....i felt 260 at wheels was reasonable for the setup
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racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
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Old 01-18-2011, 11:49 AM   #8
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Quote:
Originally Posted by SpectorV
is that an engine dyno? If so 260 is after it goes through the trans and rear end~ that might not be that far off, but not sure how the 321/337 is measured~

240 stock is also at the flywheel, take 17-18% off that to get your rear wheel numbers

say 330hp at engine * .18% drivetrain loss = 60hp~ so 270rwhp~

240hp * 18% = 43 hp so 197rwhp
O yea I know the 240 is at the flywheel , I'm not look for anything crazy just trying to get an idea !! Thanks
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Old 01-18-2011, 12:34 PM   #9
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Re: ETS Horsepower?

well its always best to expect a lower number and get a much higher one keep in mind the dyno guy will have to tune the car to really see the power gains (if he is tuning it that is)
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Old 01-18-2011, 12:39 PM   #10
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Quote:
Originally Posted by SpectorV
well its always best to expect a lower number and get a much higher one keep in mind the dyno guy will have to tune the car to really see the power gains (if he is tuning it that is)
Well I have to figure out what's the best chip for my car since the computers in the 94-95 suck so I might have to get it custom tuned on a dyno , a few guys said that sct has a good chip for my year but I can't found it when I'm looking
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Old 01-18-2011, 03:34 PM   #11
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Re: ETS Horsepower?

a friend of mine has a 95 GT 5.0 with a KB blower and he was talking about the chip he is using but cant remember what it is... I will have to ask him
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Old 01-18-2011, 03:39 PM   #12
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Quote:
Originally Posted by SpectorV
a friend of mine has a 95 GT 5.0 with a KB blower and he was talking about the chip he is using but cant remember what it is... I will have to ask him
Ok cool thanks
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Old 02-27-2011, 09:54 PM   #13
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Quote:
Originally Posted by WhiteCobra94
Ok im starting my HCI Swap soon and I am wondering what's the ets rear wheel Horsepower my car will put out (I will have it on a dyno and tuned) but what I have so far is ( stock 302 lower end, Edelbrock Performer Cam .498 lift, Edelbrock Performer Heads, Edelbrock 1.6rr, Edelbrock Performer 5.0 intake, new timing chain set, 70mm throttle body, 75mm mass air with 24lb injectors , MSD Distributor and MSD ig box, Steeda underdrive pulleys, steeda cold air intake, BBK 190 fuel pump with pressure regulator, Bassani equal length headers, Bassani off road x-pipes , flowmaster 2 chambered catbacks, smog delete, aluminum drive shaft, 4.10s, Pa racing C4 trans 2200 stall, ) plus a few little things here and there! What do you's think?
Ok so I pulled my block and it needs some work, new seals and bearings and I don't feel like sending it out to a machine shop so I tried to keep a somewhat budget but I'm ordering a shortblock this week , now I have a question with my while top end edelbrock power package I'm using, will you see a noticeable difference between a 302, 306 and the 308 short-blocks , I'm leaning towards the 308 block, what do you guys think? Thanks!
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Old 02-27-2011, 10:54 PM   #14
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If the block is new, get the 302. That way it can be bored again when it comes time to rebuild. Any difference in power will be negligible.
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Old 02-27-2011, 10:58 PM   #15
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Originally Posted by bbunt302
If the block is new, get the 302. That way it can be bored again when it comes time to rebuild. Any difference in power will be negligible.
Well it is a 302 and I can have it bored .30 / .40 / or .60 over for no extra charge!
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Old 02-27-2011, 10:59 PM   #16
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Quote:
Originally Posted by WhiteCobra94

Well it is a 302 and I can have it bored .30 / .40 / or .60 over for no extra charge!
I wouldn't do it then. Save the bore for later.
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Old 02-28-2011, 11:12 AM   #17
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Re: ETS Horsepower?

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I wouldn't do it then. Save the bore for later.
+1 ... your not gonna feel a difference with the overbore.
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racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
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Old 03-02-2011, 11:30 AM   #18
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U will feel the the difference I have 2 5.0's and one has a 308 with 355 gears one is stock with 373 gears and the 308 stomps my stock car BAD everytime
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Old 03-02-2011, 11:41 AM   #19
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Quote:
Originally Posted by Z06 eater
U will feel the the difference I have 2 5.0's and one has a 308 with 355 gears one is stock with 373 gears and the 308 stomps my stock car BAD everytime
Well my 308 shortblock was delivered yesterday and I'm putting the Edelbrock performer top end package on with JLT cai, 75mm mass air w/24lb injectors underdrive pulleys, and full off-road exhaust !
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Old 03-02-2011, 11:44 AM   #20
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Good choice
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Old 03-02-2011, 11:46 AM   #21
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Re: ETS Horsepower?

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U will feel the the difference I have 2 5.0's and one has a 308 with 355 gears one is stock with 373 gears and the 308 stomps my stock car BAD everytime
well id like to do a compression check on both those motors before i jump on the band wagon with you.
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racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
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Old 03-02-2011, 11:46 AM   #22
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Good choice
Yea I'm excited, I'm not looking for crazy HP, I'm sure I'll be happy with it!!
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Old 03-07-2011, 12:55 PM   #23
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Originally Posted by svtlx

well id like to do a compression check on both those motors before i jump on the band wagon with you.
Stock 5.0 is 9-1 and the 308 is 9.5-1
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Old 03-07-2011, 01:05 PM   #24
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Re: ETS Horsepower?

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Stock 5.0 is 9-1 and the 308 is 9.5-1
sooo how do you increase the compression ratio when your adding to the overall area?

your adding .040 of an inch going to 308ci. over 302ci. how can you increase compression by making the combustion area larger? you have to decrease the combustion area to increase the compression ratio (on n/a applications).
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racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
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Old 03-07-2011, 07:21 PM   #25
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I going with svt on this. He knows what he is talking about

Built 2 Last TTT
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Old 03-08-2011, 07:02 AM   #26
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sooo how do you increase the compression ratio when your adding to the overall area?

your adding .040 of an inch going to 308ci. over 302ci. how can you increase compression by making the combustion area larger? you have to decrease the combustion area to increase the compression ratio (on n/a applications).
If that were true then it would be Impossible to super charge a big block because u wouldn't have low enuff compression I'm not sayin ur wrong I'm just sayin that's not how it always is
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Old 03-09-2011, 10:27 AM   #27
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Re: ETS Horsepower?

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If that were true then it would be Impossible to super charge a big block because u wouldn't have low enuff compression I'm not sayin ur wrong I'm just sayin that's not how it always is
what did u just say? im sorry bud, but i dont think we're on the same page just by what you said. a "compression ratio" is a "ratio"..not a specific cylinder or cumbustion chamber size.
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racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
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