I have a dohc ZC with a t-25 almost done . I was wondering when (what rpm ) it starts to make boost and when it will make full boost .
I have HF mani , adaptor plate and t-25 , tyrus's intercooler .and 2.5 inch IC pipes

this seems to be a common setup if anyone is running this setup or has first hand info on it please pass it along

 

totally depends on too many variables. strap it on anf find out for youeself......damn noobs

 

Thanks scottsi ...do you run this set up? Or have a friend with it? And is 2800 full boost or when it starts to spool the turbo

Damn hotrex you hate on a lot of people ...it was a valid question to ask -since I was asking for someone running this set up for the information. And really the only 3 variables I left out were 8psi wastegate, 91 si ecu w/afc hack and stock zc internals

If I wanted to get flamed I would have just posted on hondatech.
At least here there are people who I thought were running this setup and could get me some ideas or good approximations as to the turbo spool I could be expecting .........I know there is a lot of different factors in play here ... I was just looking for estimates

 

um....2349.12 RPM.

I just calculated it.

Seriously though - it will begin spooling up damn near instaneously if you punch it from a stop. It'll reach full boost (8psi) around 3K.

The spool up time will be so quick it's a waste of time trying to pinpoint everything.

 

What hotrex is trying to say is that every engine is different and there's alot of things you have to consider. You just need to find out what "Your" turbo will spool up at cause noone can give you a definite answer.

 

i understand there is a lot of factors at play here ......so i was not expecting anything more than estimates


its all good ....i will know some time next week when it spools if I can find the time to finish it .....

 

My t25 spooled at about 2500 with a fully ported hf manifold and plate setup.It died and the 13g(1g dsm auto) i replaced it with had the same spool but more top end.

 

thanks i did the formula and figured it would be 2280 rpm for spool but i figure it was low and just wanted some real world info ...

i know its not as good as the 14b but did the t-25 pull till red line ?
what i mean is did it pull to red line steady and just not pull harder at higher rpm like the 14b does?