I bought my old 93 Z28 back, now it needs some TLC

[FASHOOTER]

Dibs on the LT1 when you do the swap...

[MunsterZ28]

http://www.formula383.com/2011/10/05...56-conversion/

this is a write up on the conversion for the transmission.

i bought an iron block 6.0. i will be getting into the thick of my swap next month when all my parts come together. it is def much more costly than i intially budgeted for but i did go over bored just the nickle and dime shit is getting to me now.

[mcalus]

I have thought more and more about pros and cons of a 5.3/6.0 swap and it just doesn't seem worth it to me.

So I will just dump more money into this car and motor

I have came to the realization this car is never going to sell. lol.

__________

Enough of that.

Went to the dyno day and put her on the rollers.



I'm not complaining. Although id like to see more, hp numbers are just numbers. Now that I have had it retuned (desensitize the knock and swap to a t56) i'd like to take it back to the track and see that my mph comes back normal.

I talked to Dr. Phil about the hiccup around 5300 and he really thinks its in the tune. He said he couldn't feel it when he had it on the dyno so he doesn't think its spark related. I asked about my rockers being out of adjustment he said we would be able to feel that as well. I asked who he suggested I get it dynotuned by and he said Alvin from pcm for less. I said he is in North Carolina isn't he? He said yup.... fml haha. He suggested I just drive the thing and enjoy it.

So I have been thinking how to make this brute a bit faster. I have always wanted to get an 11second time slip with this car but being at a 12.7 when it was an auto, I have a ways to go. But again I need to get back to Milan and see what it traps with the new tune and go from there.

I still have my lid conversion laying around.
I think my Y pipe might be a bit of a restriction but not much.

My tb and injectors are still stock but I don't think that's affecting me much.

I have thought about going turbo now that Jonny will be making kits for these old turds. But my motor is the complete opposite of what a boosted motor wants. Right? High compression, big cam, wrong pistons (compression). etc.... I have thought of finding another short block since they are a dime a dozen and building that as i have money and time but then again, im a 93 so unless i want to change my computer and wiring harness for a vented opti and a maf then I'm stuck finding a 93.

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Something that I have been wanting to change and needing to change for a while is a new damn bumper. Both front and rear need to be done but I think front needs to be more of a priority. I just noticed at the meet and greet that apparently there are 2 tabs/brackets by the headlights that bolt to the core support. Well mine doesn't' have them and that's why my bumper to fender gap is so awful.

So sooner than later Im going to see if I can hunt down a decent condition bumper at a junkyard and strip it and re paint it. Which I'm not looking forward to because painting the headlight buckets is a damn pain. Also ill be on the hunt for some fogs and ill be painting the fog light area gloss black as well.

[JoeliusZ28]

I always thought something looked 'off' about your front bumper but i could never put my finger on what it was. Guess that explains it.

If i were you id get another LT1 long block and set it up for boost. Could go 24x as well if you really want to get fancy but turbos dont require the RPM na setups do so you should be fine with the opti.

[nascarnate326]

If your going to go through all that work, why not just get a bunch of 4.8/5.3 parts? You can make an easy 500hp on a budget. Then you can have Phill tune it and take advantage of a hand held OBDII scanner.

[mcalus]

I would still need ls accessories, convert the 6 speed to bolt up to an ls block, pretty sure the main shaft needs to be swapped as well. I'd need an ls k member, suspension, brakes, the list goes on.

And iirc wiring harness and pcm would be cheaper too.

24x wouldn't be a bad idea because then Dr Phil can tune it vs hunting for a damn tuner to tune and lt with an opti.

Just hunting for some ideas.

[JoeliusZ28]

Yep thats a major benefit to 24x

[FASHOOTER]

I have been in the 11s for a couple years now trying for 10s NA.....your gonna spend more money on a 5.3 swap and probably not make any more power! A solid built short block and some nice heads and a decent cam.....loose some weight on that thing.....u have seen my car all the weight reductions are in the suspension..I still run a full interior car should weigh around 3450 this year. 24x conversion not worth it to me TJ at bakers will tune LT1s....never even crossed my mind to ditch the LT1 very happy with the setup. 11 second time slip easy.....don't need a LS for that.

As far as your dyno numbers.....a 5.3 with the same mods u have wouldn't have made anymore power!

[zeeman]

Mike, why not spray the buckets before you mount it on the car? then just mask it off when you spray the color.

[mcalus]

I have been in the 11s for a couple years now trying for 10s NA.....your gonna spend more money on a 5.3 swap and probably not make any more power! A solid built short block and some nice heads and a decent cam.....loose some weight on that thing.....u have seen my car all the weight reductions are in the suspension..I still run a full interior car should weigh around 3450 this year. 24x conversion not worth it to me TJ at bakers will tune LT1s....never even crossed my mind to ditch the LT1 very happy with the setup. 11 second time slip easy.....don't need a LS for that.

As far as your dyno numbers.....a 5.3 with the same mods u have wouldn't have made anymore power!

Ill be pming you about some noob motor questions.

Mike, why not spray the buckets before you mount it on the car? then just mask it off when you spray the color.

Totally against my painter rules. Hardlines!

[ryanwarby01]

You could always buy a 100 shot kit from Jonny.

[mcalus]

You could always buy a 100 shot kit from Jonny.

I have thought about this. But, my builder said the pistons aren't good for spray. Not sure why? They are hydro something? ?

[ryanwarby01]

I have thought about this. But, my builder said the pistons aren't good for spray. Not sure why? They are hydro something? ?

Probably, hypereutectic. There are a lot of debates on what these types of pistons can handle. The guy a NX told me any piston can handle a 100 shot. Anything over that you are risking failure. Do you have any head work done?

[1BADAIR]

whar are you calling high comprression

[mcalus]

If I recall correctly it's in the 12s or high 11s CR.

Only thing done to the heads, they were milled .020 and new valve seals were put in.