Almost finished car should be running soon what numbers should i expect?


Motor is a 441stroker low compression top to bottom.

Ill get build sheet soon but off top of my head

Stock Heads with all upgraded hardware of course and ported.
dragonslayer crank
crower valvetrain/full rockers
crower 800hp rated rods( called them they have yet to seem someone break them )
low comp pistons

aeromotive fuel system blahblah

What #'s should i expect engine builder told me 700 would be safe on pump gas due to detonation 700 is low and dissapointing seeing some guys pushing 650-800 on stock motors all day.

What do you guys think? i was hoping for 700 low boost and 900wrhp high boost hoping torque doesnt go over 800tq due to rods only rated for 800 even though i called crower and they said theyre unbreakable

 

What block?

 

The main problem I see is that you built a large low compression motor with a small blower, assuming either a V3 Si or V3 T trim. You would have been better off with either higher compression or a larger blower. Detonation should not be an issue if you have a good tuner. The smaller V3 blower just can't move enough air to make good power on a large low compression motor like that.

I run a V3 Ti but on a relatively high compression 377 and that combo works well.

Then again you also said pro charger so if you have a D1 or larger and not a V3 it may work out OK.

 

I'd have to see the compression I think it was 10 something.

Builder said not to run more than 700hp on pump gas so no detonation

So if I where to get a bigger procharger I would easily make more power at same boost what concerns me is never had 700hp car at most 650 builder concerned me when he said that I'm quessing I can reach 800hp on high boost whih is my prochargers max and run meth or can I do 750-800 on pump gas ?

 

sounds like you shouldnt be having that guy build your motor if he suggest that. There are tons of cars making over 700rwhp on pump gas.

You also still have said what supercharger you actually have. V3 is a vortech and porcharger is a procharger with multiple series in between. You need to be more specific. Along with trans also. Where are you located at? do you have a good tuner?

 

V3 si

Stock trans but new

In Miami fl and yeah tuner is
Gtg

 

Way too small of a blower with 441 cu inches

 

Yeah you need to go somewhere else to get your work done or go ahead and get a bigger blower from the get go.

 

As mentioned above you are going to need a bigger blower. The Si will make over 700 on an 11:1 compression LS7 but not a low compression 441. Go get a YSi for it which will fit your V3 bracket.

 

Just sounds like a bad setup. Next time ask advice before putting a combo that isn't that good together and save the hassle.

441 may not like boost. No reason to run a "800hp" rod when there are plenty of 1000+rwhp rods with no issues. Stroker isn't going to like big power if it is an ls7 based stroker I wouldn't even try to boost it. The thin ring land won't like big boost. Hell they are hard enough to get going well n/a let alone with a bunch of boost.

 

Let's see how the #s are and how it turns out!

Hopefully I'm not completely disappointed I believe the comp is 10:9

 

Probably make ~650-700, but so did my stock ls7 and many others with nothing but a v3-si kit/headers.

 

Wow... that really doesn't sound like a very good combo. Not trying to hurt any feelings. Maybe some things are being lost in translation? Hopefully that's the case.

You said low compression, then 10.9:1 -- but those are two different things. Is this an LS7 build? What kind of stock heads are on it? I really hope it doesn't have stock LS2 heads on it.

 

 

Subscribed. To see where the hell this thread may take me.

 

Be careful might take ya to the moon and back LOL

 

With that much CI,the right heads,and big blower and the right supporting mods car would be a monster for sure. Just have to piece together the right recipe

 

I'm looking for an f1 let's see how much power if I can make 800 -750 on a v3 I'll be happy. Until I get an itch to go higher

 

v3 won't support 750-800rwhp. If you are talking crank numbers then that shouldn't be an issue.

 

A T trim can make to 800 on certain combos, Ti a little higher but 750 is about the cap for an Si