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07-03-2006, 09:28 PM #1
- Join Date
- Apr 2006
- Location
- Chowchilla CA
- Age
- 70
- Posts
- 287
White- 2001 Z28
How much Horsepower in my 2001 Z28
My new set up will include;
SLP Cold air induction
K@N Filter
SLP Airbox lid
Granatelli Mass Air Flow(W/cold air tuning)
Smmoth air bellows
Throttle body bored out to 78mm
Crane roller rocker arms
JBA Shorty headers
SLP Y pipe
160 Thermostat
Throttle body bypass
reprogram with a Hypertech 3
I wonder how much horsepower I will make?
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07-04-2006, 09:15 PM #2
why shorty headers, LTs are better for LS1s. If I had to guess though, maybe somewhere around the 330 RWHP/ 340 RWTQ give or take a couple digits. Rough guess. Every car is different though. one could see 320 and the next 330. I would also have to say the numbers will be lower if you have an automatic. Now put all that in and add a medium size cam and have it professionally tuned you can see 370+ RWHP/ 360+ RWHP.
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07-04-2006, 09:59 PM #3
- Join Date
- Nov 2005
- Location
- Lost in Texas
- Age
- 41
- Posts
- 2,683
Custom Slate Blue- 99 B4C
Let me fix this for you
My new set up will not include;
SLP Cold air induction
Granatelli Mass Air Flow(W/cold air tuning)
Smmoth air bellows
Throttle body bored out to 78mm
Crane roller rocker arms
JBA Shorty headers
SLP Y pipe
reprogram with a Hypertech 3
But it will include:
Long tube headers
Off-road y pipe
ported throttle body (either DIY or shaner)
K&N Filter
SLP Airbox lid
160 Thermostat
Dyno tune
I wonder how much horsepower I will make?
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07-05-2006, 07:30 AM #4
One badd z is right... most of the that stuff is completely pointless unless you have an extremely modded car. Hypertech is crap, you can just get a street tune to save some money I would wait for dyno tune until you have heads and cam. Smooth air bellows can be made at home depot for 5 dollars. Im very confused as to why you would want new rocker arms with a lightly modded bolt on car... hrm... save yourself some pain and frustration.
I have Airlid, bellows (cheap ones), 160thermo (didnt cost much, doesnt help much), K&N which is great, Free mods (some help there for mostly free).. Then the real stuff is Pacesetter Longstubes, Pace Ypipe, Vig 3800 stall, 3.73 gears, 3inch cutout, street tune... and it screams, for about the same amount of money you would be spending.
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07-05-2006, 07:34 AM #5
- Join Date
- Nov 2005
- Location
- Lost in Texas
- Age
- 41
- Posts
- 2,683
Custom Slate Blue- 99 B4C
Is it an auto or a 6-speed, that's the big question. I meant to ask already
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07-05-2006, 09:52 AM #6
- Join Date
- Apr 2006
- Location
- Chowchilla CA
- Age
- 70
- Posts
- 287
White- 2001 Z28
It is an auto, I wanted a 6 spd.
I bought the shorty headers due to concerns over California emissions.
The roller rocker arms were a poor man's new cam.
I intend to get a dyno tune, but I do not know where to get it done.
Guess I have more work to do.
ThanxLast edited by lonewolf37; 07-05-2006 at 09:58 AM.
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07-05-2006, 10:05 AM #7
- Join Date
- Nov 2005
- Location
- Lost in Texas
- Age
- 41
- Posts
- 2,683
Custom Slate Blue- 99 B4C
Do you already have these parts then? A stall will be the best mod you could imagine, it will make it feel like a whole different car. What parts do you already have and which ones do you still need to buy? We'll help with the best hp per $ if you give us a chance
'99 Z28 It's got the BADASS mod
IT'S FOR SALE here:
http://www.ls1.com/forums/showthread.php?t=70562
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07-05-2006, 01:05 PM #8
- Join Date
- Sep 2005
- Location
- Sac
- Posts
- 146
Mystic Teal- 01 Z28
How much rwhp you make depends on what you base. I've seen '01 Z28s base anywhere from 278 rwhp(mine) to 305 rwhp .... but with your set up you may be anywhere from improving 5-10 rwhp over stock to actually losing yourself rwhp.
Force Fed in Sacramento or Newtech in Fremont ... I personally like Nick at Newtech. But, I have lot of friends who swear by Keith at Force Fed.
Also check out www.norcal-ls1.com for the local scene in NorCal ...
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07-05-2006, 01:13 PM #9
- Join Date
- Jun 2006
- Location
- "The good Lord sez he can get me outta this, but he sez he's pretty sure you're *****d!"
- Age
- 61
- Posts
- 61
white- 2000 SS Convertible
prolly not more than 285-290 with that setup...like these guys are sayin, the tune's and headers are everything. I have my 00 SS w/o headers, but with good boltons, an LS6 intake and a great tune doin 325 to the wheels. Next, I'll put in a mild cam and LT's and prolly get to 360-375. Hypertech is crap. Have it done right. You don't need a dyno. You just need to get a good PCM tune put on there for your mods. They're not that expensive. With your mods, the dyno piece is only gonna yield 4-7 HP over the PCM tune...not worth the extra dyno money. Wait till you got the cam and LT's in there to hit the dyno.
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07-05-2006, 06:54 PM #10
- Join Date
- Apr 2006
- Location
- Chowchilla CA
- Age
- 70
- Posts
- 287
White- 2001 Z28
Oh Sh*********t!
I allready have all these parts and a friend of mine is about to put them on.
Where do I go from here?
Oddly enough there is an ad for Granatelli MAF on this page.
Cam or heads?
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07-05-2006, 09:28 PM #11
If you cant get the out good, you can not get it in good. Really think about LT's with a good y-pipe, high flowing mufflers also. If your gonna put money in the car you right as well do it right. I agree with so many others here with you choice in mods. when i read through it i didnt understand why.
Granatelli Mass Air Flow(W/cold air tuning)- do nothing
Throttle body bored out to 78mm- might as well buy a good intake for those expensive heads you be buying later, Its all good thou, with just a little money you gonna have this thing screamin.
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07-05-2006, 10:38 PM #12
- Join Date
- Sep 2005
- Location
- Sac
- Posts
- 146
Mystic Teal- 01 Z28
Well the good news is you haven't put the parts on.
Here's my $.02 ...
SLP Cold air induction - It doesn't do anything for rwhp, but you will see a kick in the top end .... maybe an extra mph or 2 in the traps
K@N Filter - Again no rwhp, but it's a lifetime filter if properly maintained ... and with the SLP CAI, you'll be picking up all kinds of crap off the road, so it'll pay for itself in not having to buy a new filter every couple of months
SLP Airbox lid -It's good to go
Granatelli Mass Air Flow(W/cold air tuning) - Sell it on E-bay
Smmoth air bellows - Doesn't do anything, but it does look good.
Throttle body bored out to 78mm - Again no impact on rwhp, but you may see an improvement in throttle response. If it has the bump stop mod, it's good for a little more at WOT
Crane roller rocker arms - I assume these are the 1.8s. Since you have them, put them in. But. if you do go with cam down the road, they will limit your cam options.
JBA Shorty headers and SLP Y-Pipe - OK here's where it get's tricky. Shorties in and of themselves are hardly worth the effort. But we have the pesky smog issue here in CA. So you get LTs with an ORY pipe and join the bi-annual header swap out club. But since you have the shorties and the SLP pipe - which is absolutely useless - here's an option. Put on the shorties, get a set of spare cats for the flanges and weld in a set of straight pipes and put on the SLP Y. You will need a set of O2 sims. Then every two years you can get by with just swapping out the Y-pipe and cats
160 Thermostat - Since you have it, put it in. In doesn't gain anything in and of itself. But if you ever decide to go down to SRP, in conjunction with resetting the fans, it will keep you a little cooler in the staging lanes.
Throttle body bypass - This is one of the free mods, it gives you something to do when you don't have any money and you want to do a mod ... then you you can put it in your sig on the message boards.
reprogram with a Hypertech 3 - Since you have an A4, you can use to adjust your shift points, bump the RPM and set the afore mentioned fans. If you don't use the GMAF, you can try the tuning. But, all the HPP3 is doing is adding timing and during the summer months, around here, that can cause KR issues.
Before H/C ... there are couple of other things you can do. First and formost, I don't see any mention of a new catback, safe proven and effective. A pulley is another effective mod. And with an A4 a high stall TC is a must.
Then suspension. The stock suspension is pretty easy on a 52 year old butt. But, it needs to be stiffened up to effectively plant the power an LS1 is capable of. LCAs and SFCs are the minimum.
Good Luck
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07-06-2006, 01:13 AM #13
Keep doin research and askin questions, you are heading in the right direction.
04 C5 A4 Torch Red - sold
2009 CTS4 Ice Black - sold
2013 1500 Silverado Z71 - sold
02 Z/28 M6 Onyx Black All Options - Sold
2014 Caddy CTS4 - DD
2016 Silverado 2500HD
2020 Caddy XT6
2020 2SS Vert
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07-06-2006, 03:10 PM #14
- Join Date
- Apr 2006
- Location
- Chowchilla CA
- Age
- 70
- Posts
- 287
White- 2001 Z28
I appreciate the help
Thanks for the directions, my 52 year old butt will be making some changes.
Incidentally, I added up all the HP these mods promised, it came to 135 HP.
I had not thought about my transmission, I will be on the transmission thread looking into a high stall TC.
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07-06-2006, 08:56 PM #15
- Join Date
- Apr 2006
- Location
- Chowchilla CA
- Age
- 70
- Posts
- 287
White- 2001 Z28
The worst part is that I bought the MAF on ebay.
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07-07-2006, 10:24 AM #16
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07-07-2006, 04:03 PM #17
- Join Date
- Dec 2002
- Location
- n/w chicago
- Age
- 54
- Posts
- 6,932
black- 2000 nhra edition formula
im cammed, stalled, headers and just about all the other mods and im nowhere near 135 over stock rwhp
2000 nhra edition formula
a few bolt ons, 379 rwhp
11.96 @113.25
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07-20-2006, 03:38 PM #18
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07-20-2006, 04:00 PM #19
There is no tuning necessary with our MAF. I didn't say there is other mods that give you more HP per dollar. Lids & some cat-back exhausts do give more HP per dollar, but other modifications are MORE costly in comparison to HP per dollar, especially if you need a mechanic to do the install.
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07-20-2006, 04:24 PM #20
- Join Date
- Nov 2005
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- Lost in Texas
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Custom Slate Blue- 99 B4C
There is an entire thread dedicated to that debate, take it in there. Don't f up this thread in a pissing match
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