Turbo and cams!!

[xx91talontsixx]

I'm trying to figure out what cams I should go with based on good luck others have had. I'm planning on running an hx40 on my auto 1g and was wondering what would go well with that. Also trying to figure out if I should use the stock housing or go with a bep. Any feedback is appreciated. Thank you!!!

 

[camfast]

HX40 + Bullseye bolt-on turbine housing + Kelford 272's = One ridiculous street setup.

Friend of mine is using the exact same setup listed above with a ported 2G head and Evo III intake manifold- full boost is around 4200rpms in 3rd on level ground and never signs off all the way until you shift. The turbo is no laggier than a TD06 20G but pulls WAY harder. He's logging around 43 lb/min at just 21-22psi with plenty of room to grow as boost is added. The car's an absolute blast to drive.

The only downside to the Kelford 272's is they require stronger valve springs if you're going to be revving very far.

That sounds like a killer combo and fast spool! Is that the 7 or 8 blade HX40 and this is the BEP .55 correct? What are your thoughts on using a stock 2g intake for better response?

 

[JusMX141]

Is that the 7 or 8 blade HX40 and this is the BEP .55 correct?

All DSM bolt-on Bullseye housings are .55, yes. Turbo is a cast 7-blade 60mm HX40.

What are your thoughts on using a stock 2g intake for better response?

I believe it would potentially hurt flow more than it would help spool.

 

[Eurogaps]

HX40 + Bullseye bolt-on turbine housing + Kelford 272's = One ridiculous street setup.

Friend of mine is using the exact same setup listed above with a ported 2G head and Evo III intake manifold- full boost is around 4200rpms in 3rd on level ground and never signs off all the way until you shift. The turbo is no laggier than a TD06 20G but pulls WAY harder. He's logging around 43 lb/min at just 21-22psi with plenty of room to grow as boost is added. The car's an absolute blast to drive.

The only downside to the Kelford 272's is they require stronger valve springs if you're going to be revving very far.


Anyone I've known who changed from BC cams to Kelfords gained a few MPH at the track at the same boost level. Long ago a close buddy of mine bought a set of BC0101's (272's) when they were first introduced and dropped them in his 20G-powered 2G....and I honestly disliked the way it modified the powerband. Seemed like it took away all of the low-end torque and "hit" that made the car so fun to drive with the stock cams and moved the power to an area that is unusable on the street. Comparing the 20G/BC cam car to the HX40/Kelford cam car mentioned above, the HX40 car definitely feels as though it brings the boost on quicker and harder despite the HX40 being a MUCH larger turbo.

I think the Kelford 272' with stock valve springs are efficient at stock redline, I never tryed to run my kelford up to the 7500 revs but be interesting to do and see the valves floating or not

What do you think?

 

[camfast]

I think the Kelford 272' with stock valve springs are efficient at stock redline, I never tryed to run my kelford up to the 7500 revs but be interesting to do and see the valves floating or not

What do you think?

I dont think its worth finding out. Better to build it up right the first time and use the the corresponding valve spring for the cam.