Hey Yall, I was thinking on supercharging my 93 lt1. Can anyone give me a rough esitmate on the cost and a price a shop would charge me to get it put in.

 

Just mho but putting a supercharger on a 20 some year old car might lead to alot more fixing.

 

I would think around 7 to 8 K minimum, if you buy all new. The best way to get an accurate estimate is go to your regional forum, find out who does good work in the area, and contact them.

 

My kit cost 7k without any piping. There is a nice pb600 procharger kit for sale. lmk and I can get you in touch with the seller.

 

Much more work is needed to tune the speed density system!

 

Non sense! (J/k) i have a tune on my 93 with stock speed density computer and p600b blowerworks. It puts down 520 Rwhp on the stock bottom end at 12.5 psi max boost.

No problems whatsoever on the stock bottom end, traps 123 in the quarter.

 

Shops will screw it up. You need to work with greg carroll at blowerworks to do it right. You will need to do the work yourself to get the intricate details working.

The procharger c4 kit has flaws (belt slip) that wont allow it to work well. Greg at blowerworks will have the supporting. Parts and advice to do this right.

Start by going to his website and reading his c4 lt1 8 rib solution read and install guide. I believe its 100 pages or so.

Good luck. Im here to help if you wanna do it

 

Diz. I did not say it cannot be done. Have you tuned SD vs the 94 -95 sequential PCM. Also only 123MPH in the 1/4 does not add up. My NA - TA pulled 113 in the 1/4 at least 200lbs heavier. I would say 430 at the crank.

 

Huh? When is 123 in the quarter slow???

Do a hp calculator / 1/4 mile calculator and its dead on

 

You'll find lots of information in this forum:

https://www.corvetteforum.com/forums...on-nitrous-87/

 

I did not say it was slow! my TA approx 430HP @ the crank. Trapped 113. launching from 2nd gear.
your vette RW 520HP trapped 123

Sorry they still do not add up. The calcs will give you engine HP. Two calcs puts your engine @ 501 - 514

you should be 126 - 128 If your engine is. low estimate. approx 560 - 565

 

https://www.corvetteforum.com/forums...-down-low.html

123 vs. 126?? come on you are splitting hairs.

Heres dyno results on the same dyno that PCMFORLESS uses.

So I am fibbing, yes 510 rwhp at 5600 rpm is the max I made - at 5600 RPM where I shut down. I was making power right up to the point I shut down. I ran out of time at the dyno and did not have an opportunity to spin higher. So perhaps 530, 540 RWHP is in it if I would have spun it to 6400 rpm. If I remember right, I have > 400 RWTQ from 3000 on. It is a fun ride.

Many people blew up their SBC's or LT1's, broke ring lands, etc. at much lower boost levels. I can understand the frustration. But I learned from their mistakes and did it right. Greg Carroll at blowerworks was very helpful in achieving my goals.

I have an overbuilt fuel system, meth/water injection, dropped compression to 9.7:1 with bigger cc AFR heads, 1 7/8" headers even indexed spark plugs. Most importantly, I learned to do the tuning myself and not rely on some bonehead so called know-it-all OBD1 tuner.

I used today's know-how to achieve these goals and combat the nay-sayers that do not think the lt1 (and the optispark) are a good platform for a performance car.

I will be the first to get on here and report the moment I have troubles on my stock bottom end 500+ rwhp blown build, I promise you. For the moment, everything runs wonderful.

I do not have many drag runs under my belt. Only 5 since my latest mods I completed in early 2013. Unfortunately, the dragstrip nearby me got closed (dragway 42 - near ashland, ohio) and I am forced to drive >1 hr to get to the next one.

I am sorry that 123 MPH (a 23 MPH improvement from stock lt1 levels, does not convince you).

I am not the greatest drag driver and its a fine line between bog/spin.
I typically shift around 6000 rpm.

Perhaps nice cool fall air will have you more convinced on my build and efforts I took to get there.

(btw: I dont think the power level I am at is anything exceptionally high, but is a substantial improvement vs. stock lt1 levels. As for 'fast corvettes', yeah mine is nowhere on the radar screen and im ok with that. The thing I am most proud of is keeping the stock bottom end together and bringing 'respect' to the c4 lineage. Everything works well).

If the OP would like any advice, Id be happy to share!