Skvr_Z

hello , moving forward into the new year i want to aleast up my z28 up to atleast 425 pushing it 435 rwhp dd my current mod are ls6 swap , texas speed lts & ory pipe , borla exhaust , slp lid ls6 intake , and a 3200 stall , the stall isnt installed yet , but now my question is which route should i take f/i or bigger cam ,since im moving next yeat my budget is around 1500-2k , im open to all advice thanks

ULTIMATEORANGESS

iTrader: (4)

heads and cam. trick flow and MAST are nice heads. get your wallet out.

with that budget you might try nitrous though that isnt that inexpensive.

Skvr_Z

i did think of nitrous , but i heard it was very violent , and wears down the engine fast dont know how tru that is

ULTIMATEORANGESS

iTrader: (4)

good tune and not too much of a shot youll be ok.

SOMbitch

iTrader: (8)

For your goals n2o may be the answer.

pros: Stock fuel economy and it is SAFE with a good tune and moderate shot. No hard cold starts, surging issues, wear/maintenance associated with the stuff needed to run a big cam. Your stall is a good match too.

cons. An improper tune and n2o will cause problems on any motor. These motors are especially susceptible to broken ringlands (see picture of my H/C stock motor...)

If had it to do all over again I would prolly have done n20 first as that ringland would have busted anyway and now I would have an n20 403 lol..

zracer323

iTrader: (12)

You could get a bigger cam and get your heads ported. That should get you pretty close. Also get a underdrive pulley and cutout for a few extra ponies.

A.R. Shale Targa

iTrader: (2)

I'm guessing your current power level is around 360-370 rwhp so to reach
your target goal is only about another 60 ponies. The problem is thats a
pretty tight budget. I'd send those heads to Advanced Inductions for a
$1000 cnc program w/valvejob and mill. They use PSI maxlife beehive springs
or Lunati duals and can spec you a cam in the 230 @ .050 range. With new
head bolts, gaskets, push rods, and a Comp rocker trunion upgrade your
budget will be toast. Might have to collect aluminum cans to pay for a new
tune but you'll have the power you seek AND the daily drivability.

Skvr_Z

I could prob, save up an extra 1k or so bring the budget up to 2500-3k , I like the ported heads n cam option , what's the turn around time when I ship ,my heads out to get ported,

ULTIMATEORANGESS

iTrader: (4)

why not check into a local porter?

A.R. Shale Targa

iTrader: (2)

you'ld have to call Phil @ AI, I'm guessing 2-3 weeks, qiuck enough for you
to get everything else in order.....Bolt holes cleaned and tapped, etc.

NVUSZ28

iTrader: (5)

1.5-2K being the budget.

Torquer V3 Cam w/ 114LSA (Because it's a DD) - $375
Pushrods - $80
Oil pump/ Timing Chain - $350
Tune Approx - $500

Brings you in around $1350 + Shipping. Well under your budget, but it will net you about 400 RWHP. To match some heads with that will pick you up into the HP range you want. Heads are $1400-2700.

Others are talking about nitrous, you could go that route too. N2O is around $6-700. I've never had any good experiences with Nitrous (improper installs, blown motors, etc), however, a proper tune, and a proper install have always been the key.

A.R. Shale Targa

iTrader: (2)

The major negative to nitrous...and I've run plenty of it...is the continual
expendature of refills. You can't run a bottle empty cuz the pressure drops to
the point where the kit goes maga fat(rich)...@ 5 bucks per pound and the
necessity to keep it warm (900psi) is a constant battle. It makes awesome
torque and power but requires extreme attention to detail.

arioch

This is what i would do...and have done, 418rwhp and 390rwtq on stock heads, pretty close, but the heads are going to be a pretty penny to get that last 15-20 hp your looking for, on the up side i would think decent heads on top of these mods would net you more than your 430rwhp

My buddy with heads (i forget which ones) and these mods is pushing 465rwhp

bad_408_vert

iTrader: (6)

Why not pick a heads & cam package and do it in phases.
Do cam & Supporting mods for now and do heads 2 or 3 months later.

Only down side is you 'd have to get tuned twice.

OR just save up, see where you are at budget wise after you move.

SOMbitch

iTrader: (8)

Targa you you give great advice on this forum but I disagree with you somewhat here...


I have never run it on an LS motor but to me cost is not a good argument against N2O. A cammed motor loses mpg every time you crank it up not to mention the extra valvetrain wear. A N2O motor can easily hit his goal bone stock and he would have to hit the button alot to offset the extra fuel H/C car would burn.

Also looking at cost be realistic... a good kit including a window switch and FP safety switch, bottle warmer and for street use bottle opener is more than $6-700 but deals can be had in the classifieds here.

A 100 shot on a stock motor with a good tune is extremley safe and cost effective IMO. Consider a stock ported H/C package with full supporting mods for say $1800 may not get you quite 100rwhp and N2O starts to look good....


EDIT: My response to cost above was to a post now deleted that said a nitrous kit was $6-700. A basic kit yes but a kit I consider adequate no....

Camaro_94

iTrader: (5)

I vote for nitrous.

You could also put a good sized cam in there too and make that power.

Skvr_Z

From personal experience has anybody use the torquer v3 on there vehicles and how is its manners at low rpm

Orange Juice

iTrader: (3)

I have never had nitrous so I can't comment on its practicallity but with a h/c the power is always there. The downside is that you loose fuel mileage and driveability. If you have to sit in traffic everyday a cammed car can loose its charm real quick.

BOBS99SS

iTrader: (2)

my vote is fi, slap a d1sc on there, i honest wish i would have just got a procharger to start, imo it would have been cheaper in the longrun , will also give you lots of room to grow if you ever wanted more, add a decent boost cam and you will be a very happy camper lol, a cam is a good upgrade, that is what most people get after bolts ons, like i said if i could start over again boost would be my number 1 goal, i had a procharger on my mustang and they are great, i drove that car alot

NVUSZ28

iTrader: (5)

It's a medium sized cam, matched with the right LSA (114) and it is a very streetable cam. It'll compliment your 3200 stall perfectly.