Hey all, I'm planning out my build for my 2000 GTP that will probably be taking place sometime this Fall. I'm waiting on getting my Trans Am running in tip top shape before I start tearing apart my DD.
Car is at 113k miles right now, so I'm starting to get antsy about the state of my stock Timing Chain. Car currently has 3.4" pulley, plog, Home Depot intake and cone filter, 180* tstat, u-bend delete, modded fuel rails for intercooler, and a few suspension mods. I went 13.7 @ 99mph last summer while spinning the street tires through the 200' mark.
I'm wanting to get well into the 12s on slicks to be faster than my buddy with a Nitrous Mustang (12.7). I've read both stickies (on here and ClubGP.com) regarding safely modding the 3800 and the requirements for different pulley sizes. I'm going a little off the beaten path, so I want some advice. I first want to know if these parts are going to work well together. I then would like to know what pulley size I should run to maximize the output of the combo...I know it's not an exact science, so a starting pulley size would be acceptable, and I can go smaller from there.
Here is my planned mod list:
- VS Cam
- Comp Cams Lifters
- 3/8" Pushrods
- Stock 1.6 Rockers
- LS6 (90#) Springs...maybe 105# Springs...what do you think?
- New retainers, locks and seals
- Rollmaster Single Timing Chain
- Electric Water Pump
- 42# Injectors
- Walbro Fuel Pump w/ Re-wire Kit
- Gen V Blower w/ MPS
- Northstar TB
- 2" Phenolic Intercooler w/ Bosch Pump and ZZP FMHE
- 1" Phenolic Spacer placed below the Intercooler
- Devil's Own Meth Injection Kit w/ Dual Nozzles tapped into the 1" Spacer. I need to get in contact with a Devil's Own tech and get the specifics on a kit...I plan on spraying as much meth/water mixture through my car as I can.
- Ported L32 LIM
- Stock L67 Block and Heads...I don't have the money to upgrade the heads yet. I'm sure I'll be fine for now. If a deal pops up in the For Sale section on a good set of ported heads, I'll buy them, but I'm not dumping $2000+ on a set right now.
- OBX Headers (the ones that have the mis-bent crossover)...I bought them for $50, so I'm going to use them.
- No Catalytic Converter
- Exhaust consisting of 3" piping, a glasspack muffler, and turbo style mufflers.
- Aeroforce Wideband to feed info to my Aeroforce Gauge (also watching KR).
Basicly, I'm writing this off as preventive maintenence/replacement for the Timing Chain.
So...any suggestions? Anything you would add or remove to this list? What pulley size should I start out with when scanning for KR? In addiction to the Walbro Pump, Pump Re-wire, Modded Rails, and 42# Injectors, are there anymore upgrades I should be considering for the fuel system?
PS: I will be taking the car to ZZP in Ohio for them to tune it properly.
PPS: I have the hood clearance for the 3" worth of spacing between the LIM and the blower, plus the size of the Gen V, so that is not an issue.
Thanks all.
