D1SC and F1 Boost levels with a 346
#1
D1SC and F1 Boost levels with a 346
Went through a few logs and put this together, figured it may be of some interest. Similar DA for all of these. Some of the RPM values arent exactly lined up but you can get a good idea whats going on with them.
The F1A is 6K under max impeller speed, I'm scared to try to max it out just yet. IATs are similar to the D1SC maxed out.
The F1A is 6K under max impeller speed, I'm scared to try to max it out just yet. IATs are similar to the D1SC maxed out.
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#8
9 Second Club
Pulleys aside...Im surprised it takes to circa 5500rpm, for the boost difference to really show.
I'd have thought the bigger blower would have picked up boost much earlier too....
Or are the graphs not WOT throughout ?
I'd have thought the bigger blower would have picked up boost much earlier too....
Or are the graphs not WOT throughout ?
#9
Originally Posted by stevieturbo
Pulleys aside...Im surprised it takes to circa 5500rpm, for the boost difference to really show.
I'd have thought the bigger blower would have picked up boost much earlier too....
Or are the graphs not WOT throughout ?
I'd have thought the bigger blower would have picked up boost much earlier too....
Or are the graphs not WOT throughout ?
But on the brake at WOT @ 3500rpm there is little difference between the F1 where its pulleyed now and the maxed out D1. I woult guess the bigger blower is going to give up some low end at the expense of flowing more up top. There is a big difference in impeller design between the F1A and D1SC and I'm sure its optimized to move the most air close to max impeller speed.
These are just numbers from my dragstrip logs, a manual transmission car and a dyno pull in high gear from 2000rpm-up would probably be more accurate since these numbers are taken in 1st gear (car never sees under 6200rpm the whole way except first gear) in 1.25 seconds there is probably some error.
#18
Originally Posted by Got Me SOM
KP if i ever decide to built a badazz sat night special car/wknd warrior fun car I'm copying your exact setup.
I'm sure you got high 8's easy.
I'm sure you got high 8's easy.
There is nothing on this car that anyone cant just go out and buy and bolt on, except for the roll cage of course but that doesnt make the car go any faster.
I was planning on going turbo long ago but honestly this setup continues to surprise me and I havent found the limit yet, sometimes you just dont fix what isnt broke