Hp estimate

[Mfdiablo91]

How much hp to an estimate would i be at after top swap, 3.6 pulley, cai, tog headers, colder spark plugs and tstat, and downpipe?

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[10sec]

Maybe 220-ish WHP.

 

[b4black]

Going to knock a lot with those mods on a NA engine.

 

[10sec]

Ehhhh? No it won't, thats a perfect list of mods for a GT motor.

 

[Yaj Yak]

threeeeeeeeeeeve horsepowerrrssss


who cares honestly. these cars never put down great numbers... go take it to the track and go mid to high 13s with barely any hp

 

[syP]

Going to knock a lot with those mods on a NA engine.

lolareyoudrunk?

 

[02BlueGT]

Like KJ said, it will net you low 14's to high 13's with a can tune, probably reach down into the 13's a little more with a custom tune but I wouldn't expect much better than a 13.9x @ around 101 - 102

 

[b4black]

I just don't see headers (along with the other simple mods) being enough for a 3.6" pulley on a NA motor. Depends on the tune I guess. Just my opinion.

 

[10sec]

Think of it like a 3.4" pulley on a supercharged motor with those same mods. That's very much doable. Sure it will probably have KR, but most builds without an I/C will. They're really hard to tune for on pump gas. Trust me.

 

[syP]

and that is all it is, an opinion. But facts, and previous builds in the past, over the years... show that, most commonly... a pulley on an l26/36 is equivalent to .2-.3" smaller on the same l67/l32 setup.

With that being said.. Headers, cai, downpipe,ubend work just fine on a 3.4" setup on an l67/32

Shit, back in the day before these engines were tired and worn out, we used to run a 3.4", cai, DP, and Ubend, absolutely zero knock retard.



*damnit, 10sec beat me to it. I had the window opened, half typed.. walked away from the pc, then came back to finish it.

 

[1quick]

220-225ish add a cam and pulley down and 245-250ish

 

[Yaj Yak]

i love the fear mongering of KR on these cars.

like a blip or 3 will instantly shoot pistons through brick walls.

 

[syP]

BumpinGTP used to run 12* on his non-intercooled 12.0 passes lol

 

[b4black]

I agree a 3.6" is 'doable' for this engine but is it optimal? (I never said anything about shooting pistons )

Yes, an L67 with headers can safely run a 3.4" pulley with light/moderate knock. I'd rather run a larger pulley and keep the ECM away from the low octane timing tables. I thought the general consenus was more timing is preferred over more boost?

 

[Yaj Yak]

fuck low timing tables make all not low timing tables the end problem solved.

 

[SaturdaysGS]

Stock hot lapping (literally hot lapping, back to back runs no cool downs) my 97 GS ran 14.6-14.7 @93mph consistently. With a 3.4 pulley, HAI, and no u bend it ran 14.1 and 14.2's @ 92 rofl no fucks given about knock/kr

 

[Mfdiablo91]

225 hp? Thats it? I thought i would be around 280 at least......i thought headers and top swap give you like at least 90 hp gain and pulley swap plus cai would be like 10-20 hp gain

 

[1quick]

225whp that would be about 280-290 crank hp, if you want to make 280whp you will need a cam and a 3.2 or smaller pulley and a dyno tune, my top swap car made 270 and some change with a gen v s1x cam headers cai injectors on a 3.2 pulley with a slight bit of knock at the top of 3rd

 

[TonzKnock-G]

WHEEL HORSEPOWER NOT CRANK HORSE POWER

edit: oops beat to the punch