ls question

[NesbittRacing1]

so all this talk lately about ls motors has got me wondering, what would it take to get a ls motor in a fox in the 5teen 5.20 range

[CHEVYMAN434]

I would think around 1100-1200 rwhp....

[spdracr0]

depends on the LS motor..

[spdracr0]

A well built 550hp ls plus 300-400 hp nitrous should do it in a typical race fox body @ approx 2700lbs I think. I have been 5.50s with a raggedy windsor and a plate that would just barely make 700 on Tutens dyno

[ShawnBoyMoody]

Ask Bad Bob!

[LXtasy]

I assume this is for ultimate street. 6.0 h/c/i 300 shot nitrous, Nitrous converter and your 275/60/15. You might need cubic inches, but not much.

[1998ta__1991rs]

turbo or nitrous?? what's the weight? It would be easier with a turbo. a higher compression 370-408 would do it on a 88mm or so turbo with a 245cc or larger head, thats considering the block has larger diameter head studs, etc..., the stock 4 head bolt blocks can handle 1200 or so rwhp with a spot on tune

a nitrous motor would need to be larger, more in the 420-460" range, on a 6 head bolt block (LSX block, ERL Superdeck, or a RHS Block), and a good bit of compression, with not too much gas on top should get you there.

most of the nitrous guys in the 4's are running canted valve mozez headed 6 bolt blocks with a good bit of spray or a 88-9x turbo.

[1998ta__1991rs]

I assume this is for ultimate street. 6.0 h/c/i 300 shot nitrous, Nitrous converter and your 275/60/15. You might need cubic inches, but not much.

a head cam intake 6.0 with a 300 isnt going to run 5.teens in ultimate street trim, maybe at 2000lbs

[ShawnBoyMoody]

a head cam intake 6.0 with a 300 isnt going to run 5.teens in ultimate street trim, maybe at 2000lbs

Back halfed miata?

[LXtasy]

a head cam intake 6.0 with a 300 isnt going to run 5.teens in ultimate street trim, maybe at 2000lbs

There is other variables as well for that class. I know what i plan on running in that class but wont be teens. I know roughly hp. I bet you can go 5.teens to 5.2x with 402 ci

[cmd]

Back halfed miata?

HYHD!!!!

[Matts94Z28]

Get an lt1...

[BAD BOB]

i would personally say i dont think its worth all the work to switch. sbf has proved to work pretty well with the right stuff like any combo. you could have to switch bell housings if you have a glide, new motor plate and stuff. thats just what i think. oh and ls stuff isnt the cheapest stuff when you get away from stock stuff!

[bwelch]

408 ported l92 with 400-500hp worth of nitrous.

[schardbody]

ton o spray

[ShawnBoyMoody]

Im with Robert on this, Josh your shit is riding out I'd stay Ford!

[BigdaddyDupree]

408 ported l92 with 400-500hp worth of nitrous.

Sounds familiar. I'd like to go 5.90s one day.

[RobertHolton1]

Me to tyler

[Matts94Z28]

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[namewastaken_0_0]

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Anyone else think about putting a steak on the headers when you see engine dyno videos?

[NesbittRacing1]

thanks for the help, yeah it would have to be in ultimate street trim.but I was weighing my options seeing which would be the better way to go with it, looking like i'm staying sbf

[bwelch]

Single Black Females?

[Matts94Z28]

This just in: Averagejoe is doing a 300 hit and a TH350. He said he's going 5.5's.

[AverageJoe]

Maybe if I can get a sponsor

[ShawnBoyMoody]

Maybe if I can get a sponsor

Harry?

[TurboWS6]

408 ported l92 with 400-500hp worth of nitrous.

I don't think L92 heads will take that much of a hit. Deck is too thin, great N/A head though.

[bwelch]

I don't think L92 heads will take that much of a hit. Deck is too thin, great N/A head though.

find somebody who has actually had a problem with them then I will believe that rumor...I know I cant.

[TurboWS6]

find somebody who has actually had a problem with them then I will believe that rumor...I know I cant.

Ive seen it first hand out of Steen Racing on two separate occasions when I worked with them.

I will play. Below are a couple pics of a L92 head that was under a S480 turbo @ 12 psi, car was making 650ish belonged to a buddy of mine in Va. This is the direct result of pushing L92's to far with a power adder. When you push these heads past the 600 RWHP range they don't handle it well or for long there are always exceptions to the rule but not many, This motor also had 1/2" studs and LS9 head gaskets. FYI.

Doesn't matter if you go turbo or nitrous the end result is more cylinder pressure and this will eventually be the result.


http://i1269.photobucket.com/albums/jj585/preston99ws6/L92Head1.jpg
http://i1269.photobucket.com/albums/jj585/preston99ws6/L92head2.jpg

[Harry]

Harry?

Good One.:bigthumb: