gcomfx.com- What makes you want an evac system? I know they have their benefits, but are you doing it for power production or do you already have a blow by issue? Keep us posted on your results! If you launch that car on the spray and sticky tires, I bet you can get your 60's into the 1.6 range if not better.
94-302-vert- Me too, especially seeing how much my old combo picked up with extensive track testing. I'm still surprised that its gone as fast as it has with only two trips to the track.
Grn92LX- I wish I knew how much 1psi of vacuum was worth in terms of power production. I really think I'm going to make the move to a larger fox TB. My buddy is having a dyno day at the end of October and I'd like to have it done by then. If I can't, my cousin said I can run his 75mm 94-95 TB setup from his KB car on mine to see if it makes a difference. That yellow car on the corral is trapping over 120, he is actually one of the two that I had found. Take a look at the 94-95 1/4 mile times list in the sticky at the top of the 94-95 tech section at the times and MPH from the strokers listed there, that is very much the norm from what i found, and I looked around for MONTHS! As for gear ratio, I know you'd pick up MPH with the right gear. I got lucky in that I didn't change my gears and I'm now trapping a higher MPH. If my powerband hadn't shifted up like it did I may very well have been overgeared. I cross at ~6150 on my nittos DR's and a little over 6000rpms with my ET streets on which is just about perfect for 1/4 mile blast.
5spd GT- I can't imagine this thing with some boost. As for the head gaskets, I've already got that covered. Here's a pic I wasn't able to show before because I didn't want to give the compression away:
These are Fel Pro MLS gaskets. I'm not actually running them yet as I'm saving them until I get the final heads that will be on the car when the boost hits its. I'm running Fel pro 1011-2(?) on the car now. Here's a link to the thread that had the TB info, look at post #25:
http://www.corral.net/forums/showthread.php?t=840509
I am still running the 94-95 TB setup, inlet and all. I too have heard all the reports about the elbow being the biggest restriction and that's the only reason I want to switch to the fox setup. Switching to the fox setup means I'll need to fabricate a new inlet for it when I put the power adder on, but I don't think that will be too hard.
ProKiller- Thanks man!
BlackVert- I agree, a TB isn't the only problem with their setups if they are down as much as some of them are.
Grady- Thanks so much for that comparison! WOW is all I can say, that's appears a lot better than I had ever hoped it'd be... it makes me think there is more in it at the track now though!
I really thought the graphs would be kind of opposite than it is, meaning I thought the bottom end would be huge and the top end would be more in line with one another as I thought for sure the thing would be choked up top with all of the little parts I put on it.
Nate, this thing is absolutely without a doubt streetable. The only thing right now that I don't like is my gas mileage, but that is something I can control with more tuning via the AEM. If I had to daily drive it I would, but it is kind of on the loud side which would get old after a while. The car doesn't overheat (which I was worried about with the dart block), and as I showed Troy (yeahloh95) this weekend I can put the car into 5th gear at like 35mph and punch it and it doesn't hick-up, jerk, buck or anything of the sort. It just starts to go. I lugged it all the way down to 1100rpms and punched the throttle in 5th and it just starts to go... not very fast mind you, but it does start to accelerate with no quirks. I'm going to try to get video of this as most cars with a cam jerk and buck. I don't believe the whole >1rwhp/ci isn't streetable deal, my car has shown me time and again that its simply not true with the right parts.
I hope to swap the TB to a 75mm or larger one and see what happens. I can't help but to think that it'll pick up a decent amount. My vacuum at WOT goes from -0.08psi at 2000rpms to over -1.1psi at 6000rpms, and I'm measuring this vacuum directly behind the TB. I saw in the corral thread I linked to above that a guy picked up nearly 12rwhp switching from a 70mm to a 75mm TB on his 347 stroker. As for tricks, none were done that I am aware of other than internally balancing the rotating assembly. It took nearly two slugs of mallory to do it, but I think when building an engine of this type it needs to be done. I also upgraded the rod bolts to ARP2000 units. I'm wondering if my oil pump is actually costing me any power as I see over 50psi at idle and nearly 75lbs in the upper RPM's! I too am now wondering what a cam designed for this application would do. Hmmm....
Maybe one day i'll dyno, but I really don't care about numbers. I'm more of a cruiser which is why I haven't been back to the track in 2 years. Only thing the car needs is a 3" mid pipe but i'm done with spending money on it.
