Performance Improvements.

[rhipsher]

Hey guys, I'm looking at making performance improvements one step at a time to my bone stock 90 Z. Where should I start first. If I go with 4:10 gears how much top speed does that shave off if any. Rear gear is probably going to be the single biggest performance boost I'll make. Also I am a machinist, cnc programmer and supervisor of the shop. So as far as porting and polishing the plenum & intake goes I can slap both of them up on the cnc mill and write a program to port it any way I want and leave a 16 finish. I just don't know what dimensions to shoot for. Like what diameter and how deep to bore. Is it supposed to taper down and blend? Not sure. Any pictures, dimensions, advice would help.;)

[Pete]

If you have a CNC i can sent you Intake (injector housings) that are already ported and you can make a CnC program.
The magic number opening is 36+mm.

Pete

[-=Jeff=-]

If you have a CNC i can sent you Intake (injector housings) that are already ported and you can make a CnC program.
The magic number opening is 36+mm.

Pete

and I can send you a set to try out too.. (after you read Pete's)

[rhipsher]

If you have a CNC i can sent you Intake (injector housings) that are already ported and you can make a CnC program.
The magic number opening is 36+mm.

Pete

Ok so 36mm divided by 25.4mm= 1.417 in inches. That would be great pete. I would feel much better having something to look at and take dimensions off of. If its pretty strait forward I can have mine done and off the machine in an hour. Aluminum machines like butter. I will pm you with my address. Thanx:handshak:

[Paul Workman]

So as far as porting and polishing the plenum & intake goes I can slap both of them up on the cnc mill and write a program to port it any way I want and leave a 16 finish. I just don't know what dimensions to shoot for. Like what diameter and how deep to bore. Is it supposed to taper down and blend? Not sure. Any pictures, dimensions, advice would help.;)

I'd give blood to know what you know re CNC programming. But, that is another story.

Well, 1 hour...That sounds pretty good. There are some nuances to be sure, but if it will beat P&P with a die grinder, you could probably do a little cottage business for a spell! I'll stay tuned. If you get that CNC written, and want to port a few for some $$, I may want to get in line!

P.

[rhipsher]

I'd give blood to know what you know re CNC programming. But, that is another story.

Well, 1 hour...That sounds pretty good. There are some nuances to be sure, but if it will beat P&P with a die grinder, you could probably do a little cottage business for a spell! I'll stay tuned. If you get that CNC written, and want to port a few for some $$, I may want to get in line!

P.

Yeah I've been doing it now for 18 years. So when people ask me how I got interested in the trade I just tell them in a Charlton Heston/Mosses voice "I DIDN'T CHOOSE THIS TRADE!" "IT CHOSE ME". I started when I was 18 and have been in it ever since. It definetely has its advanteges. Especially when it comes to stuff like this.:razz:

[Hammer]

Here's some strip times for mods I did.

1. Open Air Cleaner Lid w/ K&N Filter ($100) 13.67 @ 106.8

2. Flowmaster Exhaust ($560)
Haibeck Chip ($275) 12.96 @ 109.2

3. Watson 1 7/8 Headers /No Cats ($?? Special Deal from a friend)
Haibeck Recalibrated Chip 12.53 @ 112.8

There was more in this car as I only made three runs the very first time out this year with the headers and the 12.53 was the best (and that was with a slipping clutch). I got the clutch fixed and then popped a 1/2 Shaft U-joint on the starting line first pass, next time out. Put new Spicer u-joints in the 1/2 shafts, bought the "new" car and decided to sell the "old" car so no runs since repaired. I've since removed the headers and won't be running the car anymore.

I think for the mods this car had it ran very well and I don't see why yours wouldn't do about the same. Add the porting and a sea level track and you are banging on the 11 second door easily.

Hope all this helps.

[GOLDCYLON]

Yeah I've been doing it now for 18 years. So when people ask me how I got interested in the trade I just tell them in a Charlton Heston/Mosses voice "I DIDN'T CHOOSE THIS TRADE!" "IT CHOSE ME". I started when I was 18 and have been in it ever since. It definetely has its advanteges. Especially when it comes to stuff like this.:razz:


LOL I can see it now. Let my people CNC......:)

[LGAFF]

"I can have mine done and off the machine in an hour......"


The hundreds of aluminum splinters in my hands say.........Damn you ALL TO HELL!:mad:

LGAFF
92 ZR1
#234

[rhipsher]

LOL I can see it now. Let my people CNC......:)

hehehe! Goldcylon you crack me up. As much as its been raining in Houston I'm beginning to think noah is back at least.:thumbsup:

[USAFPILOT]

If yours turn out great we might have to talk about doing mine...:D

[rhipsher]

"I can have mine done and off the machine in an hour......"


The hundreds of aluminum splinters in my hands say.........Damn you ALL TO HELL!:mad:

LGAFF
92 ZR1
#234
Have you ever had to machine G10 fiberglass? Lets just say there are certain places you don't want to get that stuff on your body. You will itch for days. So aluminum isn't to bad. hehe!:thumbsup:

[Z Factor]

Hey guys,

Hello and welcome to the forum. :handshak:

:cheers:

[rhipsher]

If yours turn out great we might have to talk about doing mine...:D

Hey Ryan, How's it going man. I havn't talked to you since we brought both the Z's to that car show. Absolutely. If it works out we will do yours to. I owe you one for comming over and helping me get that damn heavy ZF6 back in my beast after replacing the clutch.

[Pete]

Hi rhipsher
Got your PM.
I just saw you are a new member and really have very little info in your profile.
Also you only gave me your address with no name.

Sorry,for being a bit cautious hope you understand.

Yes,1.417 inches or bigger will work just fine.

Pete

[LGAFF]

"Yes,1.417 inches or bigger will work just fine."-Pete


Pete,

This just sounds wrong! I think that line is from brokeback mountain.

LGAFF
92 ZR1
#234

[USAFPILOT]

I might go check it out again tomorrow...we'll see when I finish helping my sister in law's sister move...could be a long day. But I'd like to get the vette out.

[rhipsher]

I might go check it out again tomorrow...we'll see when I finish helping my sister in law's sister move...could be a long day. But I'd like to get the vette out.
let me know if you decide to go tonight. It will give me something to do. Give me a call.

[Paul Workman]

"Yes,1.417 inches or bigger will work just fine."-Pete


Pete,

This just sounds wrong! I think that line is from brokeback mountain.

LGAFF
92 ZR1
#234

Well, Lee...Pete IS GREEK after all!;)

P

[rhipsher]

"Yes,1.417 inches or bigger will work just fine."-Pete

Is that what she said.

[Pete]

Well, Lee...Pete IS GREEK after all!;)

P

All i have to say is "soap on a rope" LOL

Pete

[Jagdpanzer]

Hey guys, I'm looking at making performance improvements one step at a time to my bone stock 90 Z. Where should I start first. If I go with 4:10 gears how much top speed does that shave off if any. Rear gear is probably going to be the single biggest performance boost I'll make. Also I am a machinist, cnc programmer and supervisor of the shop. So as far as porting and polishing the plenum & intake goes I can slap both of them up on the cnc mill and write a program to port it any way I want and leave a 16 finish. I just don't know what dimensions to shoot for. Like what diameter and how deep to bore. Is it supposed to taper down and blend? Not sure. Any pictures, dimensions, advice would help.;)

rhipsher,
How about a progress report?