pi swap setup question???????

josh0092002 · Sep 6, 2007

hello again, after all my ideas and hopes an dreams i finally decided to do a pi swap. but iam unsure on if i should just do a regular pi heads/cams/intake swap, or just save up the little extra for a set of ported pi heads for the extra gain. what do guys think, iam looking for the best possible set up to later at a supercharger to. remember funds are limited but iam willing to wait to do whats best. also any ideas on a good set of ported heads, and cam for either set up. or do you all think i should just build up my stock set up. thanks again :thumb:

nyuk98gt · Sep 7, 2007

josh0092002:

P&P heads will breathe better with or without a power adder so it is always wise to have the "extra work" done if funds permit. What are your goals for the car? P&P heads will make all of your mods work better and help to extract maximum power. You will need long tubes, too, since the exhaust will be opened up. Now if you hadn't considered LT's at all, you might want to just go with the PI heads (stock) and the LT's will really help all through the power band, especially with the supercharger. If it was my car, I would opt for stock heads, blower cams (VT, Crower, Hi-Tech are good choices here), LT's, and a decent intake (P-51, Bullitt, TrickFlow, etc.) for the supercharger. This is not going to be inexpensive but you only live once!

If you are going whole hog (or, cost is no object), then VT Engines, Steen Racing, Fox Lake, and Renegade Racing are the places you should check out (imo) for P&P heads.

Chris

voidfinger · Sep 8, 2007

I agree, i would just get the stock heads and a supercharger cam. If you looking for some stock pi heads. Hit me up i got some off a 5.4L

Jrgunn5150 · Sep 8, 2007

If you want to wait and do what's right, but a complete newer motor, rebuild it as time and funds allow, and drop it in when it's 500 rwhp ready

imp2:

Willis_98GT · Sep 8, 2007

Jrgunn5150 said:
If you want to wait and do what's right, but a complete newer motor, rebuild it as time and funds allow, and drop it in when it's 500 rwhp ready imp2:

agreed. no sense in building a badass top end up only to watch it crumble the stock bottom end.

Jrgunn5150 · Sep 8, 2007

I actually did mine in stages though, even though it isn't the best idea.

First, NPI. PI intake swap. Then PI heads and VT Stage I cams, then Foxlake stage II heads, VT Stage II cams. Novi 2000, then VT Stage II SC cams, then shortblock. Now working on 4v swap.

I would have saved alot to just jump straight to the end game. Since most of the stuff was sold at a loss.

josh0092002 · Sep 9, 2007

well the plan so far is to have a NA 400/450hp street car, then to later throw a supercharger on (way later). the motor has about 113000miles on it
so i know that the bottem end will need to be rebuilt before any serious power is made, or it may need to have it rebuilt now? i have been looking at the stageII heads from steen racing, with LT's. are there any other heads that offer the same flow/power for a better price. but as far as the buying another motor to build up, if i was to do that wouldnt it be better to buy a cobra motor an build rather than another 2v. but either way i want to stay with the 2v, if i wanted a cobra i would have bought one to start with. really i want to prove that the 2v/GT is as good if not the same as the 4v/cobra. all i need is some direction, again iam pretty new to all this all i really know is that i read in mags, an online.

Jrgunn5150 · Sep 9, 2007

To keep it short and simple, 400 to 450 hp N/A is nearly unatainable in a car you can still drive.

josh0092002 · Sep 9, 2007

well the car is not really a daily driver, but it is used sometimes, when i just feel like driving it for a bit. but why do u say that 400/450 is not doable, please explain?

Jrgunn5150 · Sep 9, 2007

You have 281 cubic inches, you are limited with a small bore, there are no gigantic flowing heads. Using the best parts in the world and a bill of about 20k, you still wouldn't hit 400 with a 2v, even at 13.5 compression ratio and race gas. You just can't do it, the parts aren't three.

josh0092002 · Sep 9, 2007

ok so what of the 5.0stroker kit for the 4.6 and the block bored .20 or .30 over an the heads. will that be sufficient i was thinking about it today and when i get the head installed ill just go ahead an rebuild the bottom end, but iam starting to think my mind is wanting more than my funds will allow, lol.

voidfinger · Sep 9, 2007

Jrgunn5150 said:
To keep it short and simple, 400 to 450 hp N/A is nearly unatainable in a car you can still drive.

The only way to do that would be the DOHC or a ls1 or lt1. 400 on a 2v is next to impossible and if you did hit it, it would be way way way unstreatable. Sorry but the 2v really can't touch the 4v in power and streatablility.... the 2v heads don't even flow enough for the 4.6 2v. But a nicely modded 2v with a supercharger and intercooler would hit the 400 450 hp no problem...just not n/a.

josh0092002 · Sep 10, 2007

so with that said, would it just be better to do a 4v motor swap an then add a supercharger. i mean as far as upgrades and prices to the 2v, it would just be better an cheaper to just go with a 4v huh???? :'(

voidfinger · Sep 10, 2007

josh0092002 said:
so with that said, would it just be better to do a 4v motor swap an then add a supercharger. i mean as far as upgrades and prices to the 2v, it would just be better an cheaper to just go with a 4v huh???? :'(

well if your looking for that power level then you can do it with a pi with a supercharger.... i just like the 4v better and i'm wanting to switch to it b/c i just like the idea of the power and torque going up in the rpm and not the 2v's torque then power without torque.... its just what you like dude.

josh0092002 · Sep 11, 2007

HUH :dunno: what are u saying about the 2v???

Jrgunn5150 · Sep 11, 2007

A blower on a 2v will get you 400 to 450 pretty easy, but the rods won't hold it long. A stock 4v with a blower will hit that number pretty safely.

voidfinger · Sep 11, 2007

josh0092002 said:
HUH :dunno: what are u saying about the 2v???

I'm saying that the way a 2v makes power is that the torque shoots up and then comes down as the rpm's go up. But the hp starts low and then goes up as the rpm's go up... the 4v both increase as the rpm goes up

tajmas · Sep 12, 2007

josh0092002 said:
HUH :dunno: what are u saying about the 2v???

If you really want to know what a 2v is capable of, all you have to do is check out this site,http://www.modularpowerhouse.com/forums/, regardless of what anyone tells you about a 2v. N/A or not this man is the best mod man in the country. He is building 2v dd that are very streetable, and reliable, pulling 500rwhp to 900rwhp. It's just a matter of how much you want to spend. But with 20k I have no doubt you'll have one of the baddest 2v's around, just my opinion. Check it out, see what you think before you make any choices and spend money that could have been spent wiser the first time. Tim at MPH is actually bidding on my son's '96 as we speak, for a dd 9-10 sec street car. Oviously there will be a power adder, but a 2v is very capable of doing it. Like I said how much do want to spend and what are your exspectations with the money you do spend. Again just my opinion.