Yeah that will work good. First gear will be like a supercharger, then second gear you should see full boost by about 3500-4000rpm. Then 3rd+ gears when ever you stomp on it. This was with a 383 motor with heads flowing about 280-290cfm. Also the type of boost controller you use will have an affect on spool up

 

My heads flow arround 279/187 @ .650. I will probably end up going with a 383. A rotating assy form callies with the dragon slayer crank, oliver rods, and JE pistons is something like $2,200. Again I run the risk of sounding stupid, but when you say boost controller, what do you mean exactly? If you are refering to the waste gate I have a 60MM HKS GT2. I didn't plan on running any sort of electronic boost controll, I was going to manualy adjust it as needed. Also I was hoping that my fuel pump will have enough volume, it's a Weldon 2015 and it has a max flow of 100 GPH.

 

You might need to upgrade that weldon to a 2025. I would use the 2015 for pump gas then run the 2025 for race fuel. The 2015 is good to about 1000 flywheel hp. Where the 2025 is good to about 1500.
As for the wastegate, the style of controller you use is going to determine your spool up especially if your running low boost. For example, if you only going to run like 10-12psi which is pretty close to most spring pressures, the valve on the wastegate is going to open slowly causing slow spool up. The valve will probably start to crack at about 5psi, where if you running an electric controller the valve doesnt open till 10psi.

 

Looks like I have another part for sale . I will grab a 2025 and go from there. My waste gate comes with a couple of extra springs so I can change the setting. I guess I have to look into an electronic controll after all. Do you have any reccomendations? I want a quality, and reliable system. I once read some where 'If you want a fast car, take the ammount you are willing to spend and double it'. How true it is.

 

Interesting thread, thanks for the email.

 

You got mail.

 

brook, I just pm'd you.

 

I got that weldon 2025 NIB for 525 if interested..

 

Maybe im just dumb but im a little confused. So the electronic boost controller will cause quicker spool up? What about running like 20+psi? If thats the case that is good to know when I finally get everything together with the t88.

 

I run 20+psi with a manual boost controller and everything works excellent! I was only disappointed when I pulled the boost controller off and ran just the wastegate spring. If you have a 10psi spring you cant run a manual boost controller. Basically all the electronic boost controller does is wait till the last minute to send a signal to the wastegate, so there is no early cracking involved which slows spool up.

Another advantage is you can change boost settings on the fly with a electronic boost controller. Usually with just the push of a button. However, if your turbo is setup for max power, the builder will put a bigger exhaust housing on the turbo. In this instance it slows spool up, which is a good thing. Right now my manual boost controller is set to allow a maxium of 25psi to the motor, but Ill never reach that in first gear. The wastegate never opens in first gear. I get about 16psi by the time I stop at 7K in first. Then in second gear at about 4K I have full boost and im rolling at about 40mph so the car is already planted and ready to go(on a warm night ) So you can see I have no reason to hook up a electronic boost controller, because everything works so well from the way the setup was designed.

 

wait so if you are running low boost such as 5-7 pounds (based on a spring pressure), would it even be worth it to run a manual or electronic boost controller?

 

you have to run one or the other, because in at least 2nd-6th gear, the car will try to make more than 5-7psi pressure. You need to open the wastegate somehow.

 

ummm, no you don't. If all you want is 5-7 psi and that's what the spring in your wastegate is set for, then no you don't have to run a boost controller. If you want to run more than that then you need to either change out the spring in the wastegate or put a boost controller on it.

 

Ok gottcha, didn't know if the boost controler was nessesary to further enhance the control over the specific boost between 5 to 7.

 

But you can get a boost controller to crack a little to slow spool if I wanted it too? I have a feeling I am going to have traction issues I also like the idea of changing the boost on the fly. I have a while to decide on this tyep of thing, needing my car painted and school are slowing down the project
-Mark