I too think that $4k is too cheap for a 1000 rwhp kit. Think about the fact that a good Procharger or Vortech kit goes for over $5k.

That said. . . I'm making 700 rwhp with an LT1 through an auto and loose converter. That's the equivalent of roughly 850 rwhp through an M6. The LT1 does have the advantage of an iron block (though a 4-bolt conversion is necessary) and 4 bolts/cylinder, but the disadvantage of poor flowing stock heads.

A while back, forcedinductions built a single turbo T76GTS LT1 with ported stock heads and 355 cid that made over 1000 rwhp at ~23 psi boost, though some have called BS on it.

Also worth noting is that the PT88 isn't a great choice. The compressor is efficient and matches a v-8 in the 350-400 cid range well, but the turbine is inefficient which increases backpressure and reduces power. A better choice would be an ST80.

 

Rich, to run 160mph in the 1/4, how much power you need? Probably 1000-1100rwhp?

 

Obviously, the weight of the car plays into it and it needs to be able to hook. The 1/4m calculators aren't too accurate for really quick cars. But for a production based car like a Camaro, the OP is about right, ~1000rwhp is what you would need. My buddy's 5.0 Fox-body based car weighs ~3,100lbs and is back halved with a 4-link. He runs mid-150's with 900rwhp (through an efficient drivetrain).

Rich

 

I'm hoping to be very close to 800 as soon as I can make it bake to the dyno to do some more tuning.
Stock lt4 heads, intake, f1a 18-19psi stock pcm




I was having spark blow out issues but that is gone now.

 

Big difference Stock Lt4 vs. CNC ported

 

X2, what Rich said.

I find this a rather odd thread, if I'm getting this right?
He does not care about the ET, just the MPH?

That's opposite my goal, I want to run high 8's and not exceed 150 mph.

---Bill.

PS, 800hp, pushing the limet with a 1st gen, GM, 010 block, splayed caps, O-rings. F1 Procharger, clutch car.

 

Nice car! I bet you threw it together in a weekend?

;-)

Rich

 

Thanks Rich, I value your nod of approval.

Yes, just a bit longer than a weekend .

---Bill.

 

Yea I know what you guys mean, I put mine together in a weekend lol.



sc68z28 I seen you got a good clean pass the other day with that 140+mph trap speed .

 

well **** a cam only ls1 with a 200 hit has gone 140+ my car went 137 with cam(gm hotcam)(stock heads) and 200 hit...

yes its a street car...i do want it to run good at the track but if you get the mph the et is easy...exspecially in an auto car...160mph is capable of 8.50 easy, id be happy with a 8.90, car will have irs which will be a huge obsticle

 

137 with a hotcam, stock heads and a 200 shot? wow, thats one strong running lt1

 

Try looking in to the lQ9 block

 

A 200 shot on an LT1 with a stock bottom end???? Let me know how long that lasts for ya!!

 

thats a 383, GT88 turbo. Jose at forcedinductions sent me that sheet when i was talking to him about potential of a gt88 on a 383 LT1. That was actually done with 25psi despite what the graph says.

 

He said ls1

but alot of very nice cars in here, def keeps me motivated.