Hello,

I run one on my 92 6spd. Main reason was to slow down the power steering pump (for road course use). No issues with lights or charging issues. I do not use an electric WP-but I am sure you will be ok. Also note that my pulley came with a larger alt. pulley to further slow down the alt. When you get a tune I am pretty sure (due to your cam change) the idle will be raised. So I say use it!

Good luck,
Steve

 

I only going to elaborate on the Cat-Back exhaust. Do a search on my Magnaflow experience and others' experience with drone.

Do yourself a favor and read all comments about Corsa, they are drone free. Forget about aftermarket exhaust HP gain, it is maybe 5 HP max...if that.

What Im trying to tell you is to buy Corsa or stay stock until you get the cash.

 

UPDATE:

Heads are off and in the machine shop. 2 valve springs were collapsed and bent. Otherwise everything was great. Did manage to snap a head bolt, but it doesn't matter much since I'm going to replace them all with studs anyway.

I hope to have the cam out and replaced later this week, so that I'll be ready for the heads when they are finished. It's been a slow-go because it's TOO DAMN HOT IN TEXAS! But, there is a light at the end of the tunnel. Later this week I'll be doing a flow comparison of the unworked head and the worked head. I'll be sure and snap some pics.

 

I'm not suggesting you do this, nor what your problem is. I'm just throwing this out there, since many don't even know it exists. It's like an LS series coil pack style for your LT series engine.



We know about them but they are really small volume and the companies tend to dissapear.

Eddie

 

"minor" modifications to an LT engine ?

go to:

http://www.vetteweb.com/tech/vemp_06...dup/fuel_index

to find out what really works (with dyno numbers to prove it) and what doesn't.

 

okay, let me try to post this address again:

http://www.vetteweb.com/tech/vemp_06...dup/fuel_index

it's an artcle from Vette Magazine...and in case you can't locate it, the long and short of the story is that "we were stunned when the Dynojet registered improvements of 9 rwhp and 7 rwtq"; Mid America Motorworks Mass-Airflow-Sensor Housing (PN 616-002); installation time: ten minutes.

 

That didn't work either;

The title of the article is "1996 Corvette LT1 Engine Buildup - What Price Performance ?".

MidAmerica MAF Housing: 9 rwhp, 7 rwtq
160 deg Tstat and coolant bypass: 1 rwhp, 0.5 rwtq
Modified air lid: 3 rwhp, 3 rwtq

 

First off. WHAT ARE YOU LOOKING for?

Topend or quickness or just all around improvement?

 

just replaced 2 MSD distributors in 15K miles.

AIP has OEM AC/Delco on E-Bay 360.00.

http://cgi.ebay.com/ebaymotors/NEW-O...item5d2ec61885

 

I've already decided on parts and such months ago. I'm just updating this thread for those interested. The list of parts I bought are as follows:

1) LT4 hot cam
2) Cloyes double roller timing set
3) Accel Optispark
4) Meizer Electric Water Pump
5) Magnaflow Catback Exhaust with resonator deleted
6) OBX longtube headers
7) LT4 Valve springs
8) Moroso crankshaft pulley
9) bosch III injectors
10) 52 mm throttlebody
11) Ported, polished, and matched heads and intake
12) Custom tune of course

I've been at this now for a few months, as I am a slow wrench and it's HOOOOOTTTTT. However, the cam should be in by this time next week. The machine shop should be done with my heads about that time as well.

We are going to do a comparison of the worked and non-worked head on the flow bench here pretty soon. I'll post the results.


Future considerations: 4.10 gears (up in the air on that one) and a supercharger.


I don't really have any goals. I would like to run well at the Texas Mile more than anything else.

 

Forget about head studs they are a waste, just get some decent head bolts.

Youll never get those heads off if you had to once the motor is in with studs or if you did youll be cussing up a storm.

 

If I don't go with studs, that'll save me a couple hundred bucks.

The guy doing my headwork seemed pretty adamant about it. Guess I'll have to do a little more research on the benefits to see if it's really worth it.

I must say, this thread has been a big help thus far. Lack of appreciation is not part of my long list of faults.

 

Love to hear his logic on head studs

Its a mild street motor not a Top Fueler
More mod money for you now.

 

Not sure. He's not here today so I'll ask him tomorrow. Most of his work is on high power applications, so that might have some influence on his point of view.

 

Head studs on an LT1 are much more likely to leak coolant than bolts. Do a search on camaroz28.com and you will see many.

 

One or the other, not a good combination.

 

I assume that's the same for an LT4?

 

Ah...Good to know. Truth be told, I'm much more likely to do the supercharger. I'm just not in a huge hurry, because I'm not a big fan of the noise.

 

Same block.

 

To the original poster, you and I are almost on the same road. I'm improving an LT1 to an LT4 top end and hot cam. First, about the pulley question, unless you are planning on running at high rpms and not driving much in traffic then maybe play with the pulley, but if you are still planning on normal driving (maybe a little spirited driving) stay with the OEM pulley. Exhaust, as you have read here, Corsa makes an outstanding cat back. I installed one on a friends Vette (94) and it was just perfect, except we didn't like the idea of only half of the tips working. I think it was the inside tips didn't flow exhaust, you only had to clean the outside tips. The sound level was not much different than the OEM system, but his LT1 wasn't modified at all. I also installed a B&B catback on my Vette and it, too, was of outstanding quality. It is louder than the corsa (much deeper tone), but does have a touch of resonance if the rpm drops below 1200 to 1300rpms as in cruising. B&B changed their design to reduce resonance (which I have) and it's acceptable now and both tips flow evenly. My mistake was I went with a 3" system on my (then) unmodded LT1 and I seemed to lose some of my low end torque. But it looks great. CAM, I also went with the GM Hot cam as it is an excellent compromise between a hot rod and a daily driver. And it has proven itself over and over so why reinvent the wheel? You are further along than I am as I don't plan to start until this fall, but I have just about all the parts. BTW, you'll be happy with the electric h2o pump. I've had mine for 5-6 years.