good combo? suggestions?

**RICE KILLER** · 03-08-2010

ok so i just got a 2000 gtp and am looking to start modding. i was going to start with all the preventative maintenance synthetic oil change, sc oil change, tranny flush/filter, coolant flush, clean lim,and replace all gaskets along the way etc. now for the mods home made fwi from the plans in the how too section (very clever), zzp dp with high flow cat, 104 autos, 180 tstat, pcm (suggestions?),[diy ported tb, diy ported sc (if this is stupid let me know)] 3.4 pulley, 1.9 rockers with ls6 springs, areoforce scanguage to check for KR. so far this is what i have come up with to start if you think i am missing anything or have any suggestions that would be greatly appreciated. thanks

**blueguy** · 03-08-2010

Read my Safely Modding Thread to catch anything you missed...as the PCM choices. DHP from 3800 Performance.

**RICE KILLER** · 03-08-2010

i have just finished reading your how to safely mod you 3800 great thread i think the only thing i missed was the powerlogs. do you think that my stock headers would be an issue resulting in KR?

**Thinkmoto** · 03-08-2010

Compression test first,then maintenance items,and headers.

**blueguy** · 03-08-2010

Originally Posted by RICE KILLER

i have just finished reading your how to safely mod you 3800 great thread i think the only thing i missed was the powerlogs. do you think that my stock headers would be an issue resulting in KR?

The manifolds and the downpipe/u-bend is the most restrictive part of the exhaust...so yes...get rid of em.

**RICE KILLER** · 03-08-2010

what about the diy port job on the TB and SC does anyone know about any threads on that or could share any info on how to correctly do this. im thinking of getting a sc housing from craigslist and doing it on that so if i mess up i still have the stock one

**blueguy** · 03-09-2010

Just go off of the pics from ZZP...minus the fact you don't have to remove the "bridge" towards the rear of the outlet because your not going to be intercooled.

**Bio248** · 03-09-2010

sounds like a good start to a stout setup. good job on picking things before the pulley.

**RICE KILLER** · 03-09-2010

Thanks a lot that was very helpfull one more thing the inlet porting to the SC how far should I open it up to when I am just porting my stock TB. should I just port the TB and then port the inlet to match? and on the inlet how far back should I go? And will it affect the opperation of the rotors if I port too much?

**matt5112** · 03-09-2010

Inlet is just to smooth it out with the TB right?

when porting the TB, DO NOT TOUCH the area where the blade touches the walls of the TB. Clean it up a little with some degreaser but thats about it. (carbon build up causes sticky throttle)

When you go to port your TB you'll find that you might make a small hole near the front. Just put some epoxy on the outside to keep it sealed. You can open it up quite a bit, but you can't make it perfectly round. Try searching on here for some more pics.

**Bio248** · 03-09-2010

Originally Posted by matt5112

Inlet is just to smooth it out with the TB right?

when porting the TB, DO NOT TOUCH the area where the blade touches the walls of the TB. Clean it up a little with some degreaser but thats about it. (carbon build up causes sticky throttle)

When you go to port your TB you'll find that you might make a small hole near the front. Just put some epoxy on the outside to keep it sealed. You can open it up quite a bit, but you can't make it perfectly round. Try searching on here for some more pics.

this is correct. do not make the blower inlet any bigger than the throttle body or youll be wasting a lot of time and effort for nothing.

**RICE KILLER** · 03-09-2010

what about the porting on the inlet of the SC is there any thing i should know about that as far as going back towards the rotors?

**matt5112** · 03-09-2010

maybe an inch? Just enough to blend it with the outlet of your TB.

**Bio248** · 03-09-2010

just smooth everything out and fill the divot in the inlet with some metal epoxy.

**RICE KILLER** · 03-09-2010

like some JB weld? should i also fill in the coolant passages to SC to keep all of that hot coolant from heating up the SC and TB?

**Bio248** · 03-09-2010

if you seal the coolant passages anywhere do it in the LIM so you dont have to worry about coolant seeping around the seal between the blower and the LIM. also, blocking the coolant path through the blower and the throttle body will increase rear head temperatures by blocking the coolant path partially. do a little research on it before you jump right into it to make sure you do it right. youll have to take the cap off the drivers side of the LIM and open it up more to get that flow back.