Aftermarket Cams and TD04

[HedgeyGedgey]

As title really, anyone ran some aftermarket cams with a td04 hybrid? Was thinking of getting some of the Fiske Automotive cams 

[RobSR]

It really depends what you want to do with the engine powerband. 
 

The nice thing about a TD04 is, it’s relatively responsive, however torque nosedives after ~5200rpm, so you could go for a slightly longer duration cam to help past this point. You will however lose a little bottom end however. 
 

If you want to improve the mid range, go for a shorter duration cam with less overlap to help drive the turbo. 
 

On a ported head, with stock valves I’ve made power to 8500rpm on a mild lift 272 that you can still use with the stock shim on top of bucket arrangement. It’s quite a nice all rounder. I personally wouldn’t bother with a longer duration unless it’s a drag car and you’re trying to change you EMAP v MAP ratio drastically. 

 

[HedgeyGedgey]

Thanks Rob. Issue I have is when td04 blows, I'll put on a gtx2860r or gt3071. So I'm sort of trying to over spec the entire build bar the turbo, so it will only be a quick swap of turbo and retune

[RobSR]

272 is just about ok on a 2860 imo, I personally would never go 3071 on a starlet, but if you do and it’s being used on the road,you want to go shorter duration, 25* region or even less unless it’s a drag engine. 

[HedgeyGedgey]

Do fiske do custom cams? If I decide to chuck some cams in, I'll speak with you guys in the summer I think. Still split decided atm lol

[RobSR]

On 1/3/2020 at 2:29 PM, HedgeyGedgey said:

Do fiske do custom cams? If I decide to chuck some cams in, I'll speak with you guys in the summer I think. Still split decided atm lol

Yes we do, we only list a 272 ‘over shim’ online, however we offer various durations, with varying lift. We run a slightly different cam in our new development engine that you have to use a solid bucket/under shim with. 
 

Let us know and we can help spec something most suited to your setup