DevineAstral
Proven Member
- 81
- 21
- Jan 1, 2020
-
Irvona,
Pennsylvania
Hey folks.! Bought my 97’ GS-T spyder afew months ago. Was having an issue with 3/4 or WOT with the car having no “get up” even though it had full boost. (Car is completely stock.) so thought it might have been the BPV, so I changed the stock out for a turboxs one. Still had an issue with no power. Did a compression test and #3 and #4 were about 30psi lower than 1 and 2, so was in the process of taking the head off to change the HG. Long story short, broke one of the studs for the engine mount to tranny plate.(manual transmission. Already have the part on hand now.) while I’ve been waiting to find the plate, I’ve been considering building my head and swapping the T25 for a T28. Heads been pressure checked and checked for warpage and it’s still good. I’ve done my homework and below are a list of parts I wanna get for the build.
-GSC power zero tick lifters
-BC 268/272 cam shaft + BC springs and retainers combo
-ACL bigger oil pump
-Gated water pump
-STM balance shaft eliminator
-Mishimoto thermostat
-precision 580 ball type injectiors
-Wally 190 fuel pump.(or should I just go the 225 since it’s the same price.?)
I already have all the belts and gaskets to finish the job aside from the water pump and oil pump gaskets.
Here are my questions.(either due to grey areas of understanding and me not able to find an exact answer, or me just failing to understand what was said and need further clarity.)
#1: what other components do I need to finish my head build and/or how many will I need for particular items.(IE:valve guides/keepers/seals, and valves, do I NEED to replace these or will stock work with the cams.? What sort of cam gears should I look into and should I keep them at stock measurements or do I need to advance/retard the cams because of the build.?)
#2 am I going to require a tune for both BEFORE I eventually get a T28 on.(since it’ll be a while, maybe a year or two, before I get one.) and will I need a tune AFTER I get the T28 on.? I’ve read posts about no one needing a tune with just the turbo swap but nothing about turbo + head build.
#3 am I able to do the balance shaft delete with the engine still in the car, while I’m doing the oil pump swap.? Or do I have to take the engine out in order to do it.(because I have no way of pulling the motor or even a stand to put it on.)
as I stated before, I’m only asking these because I A, didn’t get the right answer before, or just didn’t understand the context of what was described and I’ve researched for countless hours on multiple sites to the point that the words merge together. Thanks in advance people.! I appreciate any and all help.! I’m still fairly new the game and was always a “bolt on” guy and beginning the steps to dig deeper into the tuning world. Thanks.!
-GSC power zero tick lifters
-BC 268/272 cam shaft + BC springs and retainers combo
-ACL bigger oil pump
-Gated water pump
-STM balance shaft eliminator
-Mishimoto thermostat
-precision 580 ball type injectiors
-Wally 190 fuel pump.(or should I just go the 225 since it’s the same price.?)
I already have all the belts and gaskets to finish the job aside from the water pump and oil pump gaskets.
Here are my questions.(either due to grey areas of understanding and me not able to find an exact answer, or me just failing to understand what was said and need further clarity.)
#1: what other components do I need to finish my head build and/or how many will I need for particular items.(IE:valve guides/keepers/seals, and valves, do I NEED to replace these or will stock work with the cams.? What sort of cam gears should I look into and should I keep them at stock measurements or do I need to advance/retard the cams because of the build.?)
#2 am I going to require a tune for both BEFORE I eventually get a T28 on.(since it’ll be a while, maybe a year or two, before I get one.) and will I need a tune AFTER I get the T28 on.? I’ve read posts about no one needing a tune with just the turbo swap but nothing about turbo + head build.
#3 am I able to do the balance shaft delete with the engine still in the car, while I’m doing the oil pump swap.? Or do I have to take the engine out in order to do it.(because I have no way of pulling the motor or even a stand to put it on.)
as I stated before, I’m only asking these because I A, didn’t get the right answer before, or just didn’t understand the context of what was described and I’ve researched for countless hours on multiple sites to the point that the words merge together. Thanks in advance people.! I appreciate any and all help.! I’m still fairly new the game and was always a “bolt on” guy and beginning the steps to dig deeper into the tuning world. Thanks.!