1G 1g Rebuild Question for 30 psi

[Blwnfive0]

I am having repair work done on the block. I figured I might as well upgrade a few things. I want to run upwards of 30 psi. What upgrades are necessary from stock rotating assembly? Just Piston and rods? I have a fresh 2g head going on so whatever would pair well. Thanks!

 

[1990TSIAWDTALON]

Yes, good rods and pistons and have the block decked to be smooth and flat. Make sure that your head is also perfectly flat with a machinist rule or take it to the shop and have them check it. New timing components and oil pump are always on my new motors also.
You will need a 2g or comparable intake to match the 2g head ports.

 

[Blwnfive0]

Yes, good rods and pistons and have the block decked to be smooth and flat. Make sure that your head is also perfectly flat with a machinist rule or take it to the shop and have them check it. New timing components and oil pump are always on my new motors also.
You will need a 2g or comparable intake to match the 2g head ports.

Thanks! What is the best kit I can get. Just something that can handle Boost I don’t need top of the line. So entry level stuff. Affordable.

How is this kit? https://www.ebay.com/itm/1820204182...PwAg7SOQKC&var=&widget_ver=artemis&media=COPY

 

[1990TSIAWDTALON]

You will find out that most of us on here shy AWAY from Ebay stuff for our cars. I don't see anything wrong with the rods but those pistons are just stock 2g pistons, not really an upgrade just a side step.
You could use these rods and a set of forged pistons that have the 22mm wrist pins or go with these rods and regular 1g forged pistons. That is where you will see the difference in price. The kit you looked at had stock pistons, not HP forged, which you will see are quite a bit higher but also quite a bit stronger.
I run Manley H-beams and 9:1 Manley pistons but Scat is good and Eagle too. I built a 7 bolt for my son that had Scat rods in it and I have another 6 bolt with Eagle crank and rods and Manley 10:1 pistons. The bottom end can be a bit pricey.

 

[Blwnfive0]

You could use these rods and a set of forged pistons that have the 22mm wrist pins or go with these rods and regular 1g forged pistons.

Would I need to do anything else to run high boost or would that be able to handle it?

 

[pauleyman]

Would I need to do anything else to run high boost or would that be able to handle it?

The more important question is what are you doing with this car? High boost is not the only thing.
Assuming we're only talking about the longblock don't forget fasteners and head gasket. If yiu choose an MLS verify the required RA number and make sure the machinist knows. They should. If he asks "what's RA?" Leave.

 

[Blwnfive0]

The more important question is what are you doing with this car? High boost is not the only thing.
Assuming we're only talking about the longblock don't forget fasteners and head gasket. If yiu choose an MLS verify the required RA number and make sure the machinist knows. They should. If he asks "what's RA?" Leave.

It’s going to be a daily. I have an 03 Mach 1 with 30k miles and I don’t want to put miles on it if I don’t need. I want a reliable little car that’s a lot of fun. I can’t take my Mach on the highway because it has 4:30’s. Can literally watch the fuel gauge go from full to empty.

MLS? RA?

 

[1990TSIAWDTALON]

From "Production Machining", RA is - “Ra is calculated by an algorithm that measures the average length between the peaks and valleys and the deviation from the mean line on the entire surface within the sampling length. Ra averages all peaks and valleys of the roughness profile and then neutralizes the few outlying points so that the extreme points have no significant impact on the final results.
In a nutshell, RA is the smoothness of the surface, the lower the number, the smoother it is, like a mirror.
MLS - is Multi Layer Steel for headgaskets and some intake and exhaust gaskets.
See this thread for our terminology.
High Boost - to me is anything over 40 but to some it is anything over 15

 

[pauleyman]

It’s going to be a daily. I have an 03 Mach 1 with 30k miles and I don’t want to put miles on it if I don’t need. I want a reliable little car that’s a lot of fun. I can’t take my Mach on the highway because it has 4:30’s. Can literally watch the fuel gauge go from full to empty.

MLS? RA?

Forgive me if I sound harsh but it sounds like you're putting the cart before the horse here. 30psi? Daily driver? Unlikely. What kind of fuel? What turbo have you chosen? Do you have a horsepower goal in mind? Will this car see track time? If you immediately go to some giant turbo you may find the car a lot less fun that something else. It may be faster in a quarter mile but if all you're doing is daily driving it you may want the powerband somewhere else. Project planning is in order here.
Have you picked out...
engine management?
Fuel system?
Fuel?
injector size?
intercooler?
There is a lot more to running "high boost".
If you don't build it to what you want to do you will be disappointed. I've driven big turbo drag cars. I didn't think they were nearly as fun on the street as a smaller turbo lower HP car. At least for a DSM 4 cylinder anyway. The rules are different for other cars as the comparison isn't the same.

Project management and building a dsm

I wrote this for another board some time ago and wanted to share it here.Project management.......Over the years we keep hearing opinions of this or that, how to build something etc but we rarely see something broken down (no pun intended) to more basic terms. I have been dealing with...

www.dsmtuners.com

 

[Blwnfive0]

Forgive me if I sound harsh but it sounds like you're putting the cart before the horse here. 30psi? Daily driver? Unlikely. What kind of fuel? What turbo have you chosen? Do you have a horsepower goal in mind? Will this car see track time? If you immediately go to some giant turbo you may find the car a lot less fun that something else. It may be faster in a quarter mile but if all you're doing is daily driving it you may want the powerband somewhere else. Project planning is in order here.
Have you picked out...
engine management?
Fuel system?
Fuel?
injector size?
intercooler?
There is a lot more to running "high boost".
If you don't build it to what you want to do you will be disappointed. I've driven big turbo drag cars. I didn't think they were nearly as fun on the street as a smaller turbo lower HP car. At least for a DSM 4 cylinder anyway. The rules are different for other cars as the comparison isn't the same.

Project management and building a dsm

I wrote this for another board some time ago and wanted to share it here.Project management.......Over the years we keep hearing opinions of this or that, how to build something etc but we rarely see something broken down (no pun intended) to more basic terms. I have been dealing with...

www.dsmtuners.com

I’m not at all. The car is going to be stock with the foundation of running high boost. It needs a rebuild so why put stock intervals in when I plan on running high boost? The engine is the foundation of running high boost.

I thought that was pretty clear in my initial post… Sorry for confusion.