View Full Version : Next Bolt-On?


JakeyLS1
05-07-2012, 02:59 PM
I have a SLP Loudmouth 1 and a SLP Lid with the ram air hood. I will be doing 3.90 gears and MT Drag Radials in the coming months. I am just wondering whats the next bolt on I should do? It needs to pass emissions because its my DD, so LT's aren't an option until I have a new DD. LETS GET SOME INPUT!!

jrob56
05-07-2012, 04:09 PM
Well you could do shorties and with some kind of a better ypipe and highflow cats, but seems like a waste or money.

UD pulley or ported throttle body is about the only other things I can think of bolt on wise. What year is your car? If its 98-00 Id definitely do an ls6 intake.

JakeyLS1
05-07-2012, 04:10 PM
Well you could do shorties and with some kind of a better ypipe and highflow cats, but seems like a waste or money.

UD pulley or ported throttle body is about the only other things I can think of bolt on wise. What year is your car? If its 98-00 Id definitely do an ls6 intake.

It's a 2000, Whats the average cost to port the TB and can you port the stock throttle body?

TheLS1Lover
05-07-2012, 04:30 PM
Drag Radials = Broken 10 Bolt.

I would get a tune. Then UD Pulley, the PnP TB.

TheLS1Lover
05-07-2012, 04:30 PM
Drag Radials = Broken 10 Bolt.

I would get a tune. Then UD Pulley, the PnP TB.

JakeyLS1
05-07-2012, 04:39 PM
Drag Radials = Broken 10 Bolt.

I would get a tune. Then UD Pulley, the PnP TB.


How much will a PnP TB add? or what will it enhance? Willl I need an LS6 intake before i do it?

jrob56
05-07-2012, 04:53 PM
I dont know how much you will gain numbers wise, small probably few hp, but throttle response was much better and yes you can port the stock one. I think mine was around 80 but was a hand port, I think some sponsors have some CNC'd ones now and those are 100-150 or so I think. Cant tell you for sure, Id just do a search. You dont have to have an ls6 intake to have the TB ported. Since you are a 2000 the intake swap is by far the best next bolt on you can do.

My advice is to buy an ls6 intake and have the TB ported, should be 400-500 depending on if you can find a deal on the intake on here and who you have port the TB. Idk how much youll pick up, I never dynoed my old Z, but it was a significant gain. The ls1 intake sucks period.

Is this a manual or auto car?

JakeyLS1
05-07-2012, 05:01 PM
It's a manual. I will be taking it to the track every other weekend and will run it at the very most 5 times during those nights. It is my daily driver and i want to do a 3.90 gear swap and some MT DR's, will my rear hold up if I dont drop the clutch when i launch and instead ride it? I have an ls7 clutch.

jrob56
05-07-2012, 05:12 PM
It's a manual. I will be taking it to the track every other weekend and will run it at the very most 5 times during those nights. It is my daily driver and i want to do a 3.90 gear swap and some MT DR's, will my rear hold up if I dont drop the clutch when i launch and instead ride it? I have an ls7 clutch.

Being a manual on DR's you are at best on borrowed time, I wouldnt be dumping at all, If you kinda roll into it you might be ok for awhile. Gears are a waste though, Id stay on your stock 3.42, and when you upgrade the rear then do the gears as well. Any 10 bolt upgrades behind a manual youll probably regret later. I dont see any problem with DR's on an auto car, because it doesnt shock the drivetrain, but I cant tell you for sure on manual. Seems like bad news usually though.

Did some leg work for you, slp yipe, better than what you have and will be good for emmisions 75 bucks shipped.

http://ls1tech.com/forums/parts-classifieds/1543589-stock-parts-2002-z28.html

Ls6 intake 350 shipped.

http://ls1tech.com/forums/parts-classifieds/1543986-2-ls6-intakes-stock-f-body-throttle-body.html

TheLS1Lover
05-07-2012, 05:23 PM
Adding onto that ^ I would get a high flow cat as well. Remember you will need a Tune to get the best results of all of these mods too.

jrob56
05-07-2012, 06:22 PM
Ya I agree a tune is necessary to get the full potential out of anything you add, but you can absolutely drive it without. So you can get all your bolt ons done and tune it all in one pass.

JakeyLS1
05-07-2012, 06:39 PM
Ya I agree a tune is necessary to get the full potential out of anything you add, but you can absolutely drive it without. So you can get all your bolt ons done and tune it all in one pass.

Planning on tuning it soon. I need DR where I race or i will just spin all of first and second and i have brand new dunlop direzzas with a 300 Tread Rating. Looks like ill wait on the gears though. Does the SLP y pipe come with cats?

s346k
05-07-2012, 06:40 PM
i'd just bolt on a hsw plate kit and call it a day. maybe get dat gs tree forty and racetronix hawtwar kit.

JakeyLS1
05-07-2012, 07:11 PM
Seems a bit too much for a stock car with 100k miles haha

jrob56
05-07-2012, 07:41 PM
Planning on tuning it soon. I need DR where I race or i will just spin all of first and second and i have brand new dunlop direzzas with a 300 Tread Rating. Looks like ill wait on the gears though. Does the SLP y pipe come with cats?

no it bolts onto the stock cats. just removes the flattened and worthless Y pipe. for 75 id say its worth it. buying some high flow cats and replacing the stock cats would help out too, but thats some work for an exhaust shop. The Y pipe you could do in a couple hours in your driveway

s346k
05-07-2012, 07:44 PM
Seems a bit too much for a stock car with 100k miles hahaa real good friend of mine sprayed a tnt 150 wet on his 125k+ mile 6 spd car for YEARS. nitrous backfires, rev limiter, mis-shifts...you name it. the car went mid 11s @ 127 with a cam, shit tune and 150 hit. it trapped 109 on motor hahaha. you'll be fine. get a fuel pump and spray the fucking house down.

thegroup
05-07-2012, 09:22 PM
u can do LTs unless ur state is hard on emissions. my old 00 passed when i did my SLP LTs. i know the shop very well and they usually give me the good ol boy inspection. but i had them do the actual test to see if it would pass

groundZ-28ERO
05-07-2012, 09:25 PM
You should unbolt that factory body kit.

JakeyLS1
05-07-2012, 09:54 PM
You should unbolt that factory body kit.


I would but it's riveted in and it looks like shit with it off

JakeyLS1
05-07-2012, 09:59 PM
Drag Radials = Broken 10 Bolt.

I would get a tune. Then UD Pulley, the PnP TB.


UD pulley is good huh? How hard is that to install?

VandykeT/A
05-07-2012, 10:16 PM
UD pulley isn't hard to install at all but your not gonna feel a difference. A ported TB will give you a little more throttle response and maybe 7rwhp or so and the UD pulley would probably give you 7 or so to. If you do ever decide to go LTs or catless I'd most definately get rid of that LMI and put a Borla or magnaflow in its place. I would also go ahead and do 4.10s instead of 3.90s. 4.10s should have came in these cars stock. Its not gonna last with radials but if your gonna throw money at the 10 bolt definately go 4.10.

JakeyLS1
05-07-2012, 10:26 PM
UD pulley isn't hard to install at all but your not gonna feel a difference. A ported TB will give you a little more throttle response and maybe 7rwhp or so and the UD pulley would probably give you 7 or so to. If you do ever decide to go LTs or catless I'd most definately get rid of that LMI and put a Borla or magnaflow in its place. I would also go ahead and do 4.10s instead of 3.90s. 4.10s should have came in these cars stock. Its not gonna last with radials but if your gonna throw money at the 10 bolt definately go 4.10.

I'm just gonna do the ls6 intake for now. I'm just going to slowly get it ready for 5.3l heads and an ms3 cam. This car is my DD for now until I get a new DD. My state does emissions and it Definately won't pass. I guess they are repaving our track so maybe my street tires will do for the time being.

TransAmWS.6
05-07-2012, 10:45 PM
I you can't pass emissions in your state with LT's I don't know how you expect to pass with a cam. But regardless, I would do an LS6 intake. Not only will it help you down the line when you're really trying to make some power with the car, but you will probably see some gains with the few mods you have right now.

JakeyLS1
05-07-2012, 11:08 PM
I you can't pass emissions in your state with LT's I don't know how you expect to pass with a cam. But regardless, I would do an LS6 intake. Not only will it help you down the line when you're really trying to make some power with the car, but you will probably see some gains with the few mods you have right now.

No no i'll do the cam after I have a new DD. After that, it's go big or go home