I have access to quite a few 14b's from 90-94 talons/eclipses/lasers. Would a pair of these work alright with a mild 355? Potential plan is a 355 with a 262 duration .480 lift roller cam, stock tpi heads, tpi induction controlled with a megasquirt, two 14b's and run 6-8 psi on a 9.7:1 static compression motor. All parts I have lying around if you are wondering why. I know for a fact it's not an "ideal" set up but it models up to be a very fun combo on a desktop dyno with all the power below 5500 rpm. Opinions?

 

I think it would work. While a 14b came on a 2 liter engine, they were higher revving than TPI engines. They are said to be good for a max of 275-300 whp so with two you should be in good shape for 500-600 crank hp. Certainly you would have good throttle response!

 

i do think that the 14b turbines may be a lil to small, i bet they would build boost instantly.

hell im worried about that happeneing with my t3/t4 turbos on my 355. i should see full boost around 2800 rps

 

What would be the downfall of early spool? Seems to be a good situation. Would this be susceptible to boost creep or over spooling?

 

could be alil of both, the smaller the turbine the larger of a wastegate u need to control lower boost levels so it dosent creep.

the other downside is cruising down the highway, out were i am the speed limit is 80mph for the most part. with to small of a turbine at crusing speed i would be in boost so fuel milage would suffer


i had this issue with the first turbo i used on my 2.8 crusing at 65/70 mph the slightest bit of throttle opening gave me 1-2 psi,

 

bingo. i have a pt cruiser that stays in boost nearly all the time. it is not good with the gas mileage. best i can get out of it is around 24 hwy.

 

I wonder if you could adjust the fuel/timing to compensate for that. If you've got access to it in the MS adding an EGR valve with an auxiliary output and then decreasing the fuel to the engine may mitigate it. Besides that you could run a very very tight converter, both of which would be good for milage.

Besides that, the 14Bs would probably work pretty well overall and you'd end up with something that would likely work well on the street too. This is an upgradable platform as well so even if it's just to get your feet wet a set of EVO 8 16Gs would make this thing into far more vicious of a beast later on.

 

The car is actually a stick. Yup it's just to play with really. I have another camaro that is going to be more of a "drag" car so this is a project as a learning experience. I would have computer controlled boost control based off of rpm. I guess the question at hand is whether the waste gate can bypass enough exhaust to prevent boost creep.....

 

Definitely port your gates and a few $ at some pucks would be a good thing. You can buy em for mitsu turbos as they are known for creeping.

 

I have a friend that does porting so that shouldn't be a problem. The term pucks is new to me.

 

A puck is the flapper piece at the end of the swing arm of an internal waste gate.