Right now im rebuilding my motor to 355. 4 bolt mains fully forged, i also got a big holset turbo off of a dodge ram desiel truck, and a cc306 cam on a 114lsa, im wondering if anyone else has done a 355 turbo with cc306, keep in mind my pistons are 32cc dish so im gonna be running quite a bit of boost, any suggestions comments or ideas on what you guys would recommend

 

I'm running a t67 turbo with a stock engine and hot cam similar to cc305. You should be okay.

 

What's the compression ratio for the engine? How much boost are you planning on running?

I would think you would need a bigger turbo than one off of a diesle pickup truck. They are rated for great torque, but the key is HP and air flow. Do you have a compressor map or something?

The cam should do just fine, but if you are planning on running bigger boost you might want a more agressive cam. Just some stuff to think about.

 

The stock Turbo Diesels turbos have a compressor map that closely resembles a T60. Hardly "Huge"

 

Ya those turbo's work great on 2.3L mustangs. I had a Holset on one of my Mustangs I used to own. They're also good for STOCK 5.0's. I hardly think it'll work to well on a cammed LT1.

 

I would put it all together, with a T4 flange , run it and tune it , you can always put more turbo to it later after you have everything else figuered out , a Holset off a 5.9 cummins should make 475-500 whp, and I am from the, use a stock cam school, until your sure you need more. if that 306 means seat to seat duration YES, but if it means at .050 lift I think no I wouldnt use it. to bad it wasnt a twin cam then you could spread the LCs out. stock cams on the street work quite well, but maybe your planning a 1000hp !! Ron

 

I would say atleast a T-70. If you want to get a little more crazy in the future go with a T-76. Talk to jose at www.forcedinductions.com.

 

I've got a 76.5mm HKS turbo on a 355 with a Comp 305 grind. It runs okay and makes 569 at the wheels at 9 psi, but I wish I had gotten a turbo cam when I built the motor instead of using what I had. The boost comes on slowly on my setup.

-Chris

 

I have an LT1 turbo cam for sale:

224/224 @.050 114 and 568/568 lift

wingnut
pm me if interested.

 

What lobes are those, wingnut?

 

I am not sure if I am answering the question right, but

@ .050 int. 2deg btdc 42deg abdc
exh 50deg bboc 6deg atdc

specs are for cam installed @ 110 intake center line

custom comp grind 3192s / 3192s hr114+4
s/n 0962
part# 01-000-8

Wingnut

 

what holeset turbo?
guy near here was running one into the 9.4x's on a homebuilt/junkyardsetup... of couse this may be a bigger turbo then what you have but who knows.

i would use another cam