Quote:
Don't have a lot of time here. Going home. Heads are everything. More tomarrow. :drink: |
Quote:
As for head size that depends a lot on the specs of the cam. Joedls, do you have any idea what the specs are on that custom grind cam? We are talking about only 302ci so we don't want to go too big unless we are going to rev it really high (above 6500rpms). And if that's the case then we need to ditch the hydraulic roller and go to a solid roller. Hydraulic rollers in the 5.0 are only good to about 6500rpms. I think something around 185cc to 190cc if the cam has 220 at .050 or more. If the cam has less than 215 at .050 then something in the 165-170 range would work well. Ben, I'd pass on that 8.8. One, it has drum brakes and two, it only has 28 spline axles. Also, I'm fairly sure that it will have to be narrowed to fit under the RX7 but you could measure and see. If you want to go with an 8.8 get one from an Explorer that already has disc brakes and 31 spline axles. |
Quote:
I agree about the MLS gaskets. I used the Cometics on my 347 with 12 PSI of boost and 9.7:1 CR, no problems. I really can't say what the specs on the cam are. I couldn't find any info on it. I think I'd go with 185cc or 195cc with that blower. You really want to minimize any restrictions so the blower can do its job. |
Heads make the engine!!!! All the engine does is stay together!!!! AFR FTW!!! 185 or 205!!! 185 will do the trick, with Nitrous exhaust ports, http://www.airflowresearch.com/185sbf_strp.php
I kind of jumped a few pages.... what is the short block??? year? roller? what is done to it? Compersion? My fox ran 11s with a stock block 9.5:1 cast pistons 351w, with a lot of blow-by, with a set of AFRs!!! 11s, it only dyno 325hp to the wheels!!! The biggest question is how fast you guys want to go??? |
I agree about the AFRs, I like mine.
Canfields are also up there with AFR. Check these out, they come with a 660 lift cam. Yeyah! http://cgi.ebay.com/ebaymotors/sbf-c...1%7C240%3A1318 |
This is all you need!!! N/A, what kinda of collection can you guys make?
http://orangecounty.craigslist.org/pts/976324106.html |
|
Quote:
|
after Glen opens these up a bit.... yeah. anyone know the info onthe block? year? roller? what is in it? If he will take $500 yeah.
|
Quote:
|
so its a roller bock??? out of what car? rods?
|
Quote:
|
Quote:
|
I'm back.
Ok, the heads should be 190cc to 210cc depending on cam lift and RPM limit. But a smaller intake port will work. With the forced induction intake size is realitive to boost. The exhaust port and restrictions after that are VERY important. We need more information on the rear gear and total boost. What the final weight is going to be----give or take a few pounds. If cost is the only factor here, then find the heads you can efford and then build every thing around that. Are we going to go thru the short block or just use what we have as is?? Any heads we get, the ports can be cleaned up and do a little bowl work. Port match with the intake is a must. But, I don't like an exact match, I like the head ports to be a little bigger than the intake because of port pulse. The intake port being smaller helps break up the pulse wave. :drink: |
Quote:
Total boost 12-15psi with methanol injection :huh: Weight, and I'm really guessing on this one is probably going to be something on the order of: 2,750 +- 150. :huh: Quote:
Would we necessarily need to change the cam to be appropriate to the heads, or might the one that's in there work just fine. Quote:
|
Quote:
Quote:
Quote:
|
Quote:
|
Quote:
Yes and I'll PM you later. Basically it's just a matter of details. |
Pony boy (2007gtpony) has made an offer------he said he will test the engine in his FOX body racer for us. Isn't that nice?:drink:
|
Quote:
|
Quote:
|
Quote:
|
Quote:
|
Quote:
|
Ignition System
I want to clear as many items as early as possible. While the engine might take on some slightly different configurations, I don't imagine the ignition system will change all that much. With an eye towards performance value, what should I be looking for for this engine regarding distributor, coil, etc.
|
Trans Axle and Tires
Assuming the 4 speed wide ratio top loader, a 3.73 axle and 255/60x15 tires, here's what we're looking at for rpm vs. mph. I'm thinking a 6,000 to 6,500 rpm redline here. Let me know if you have some other axle and tire sires you want me to plug in.
|
Quote:
The engine seemed to quit making power ~ 5500 RPM, but I'm sure that is because it was choked down; stock exhaust manifolds, 2" exhaust, small ports and valves on the heads. I think that shortblock will hold up to about 550 - 600 HP. Much more than that at these blocks start splitting without further work. I agree that the bottom end doesn't need to be gone through, but checking the bearings would be wise. Won't take much effort. |
Quote:
|
Quote:
This is what I used for ignition: http://www.msdignition.com/Products/...ng_Master.aspx http://www.msdignition.com/product.a...s=ford+e-curve http://www.msdignition.com/Products/...r_SS_Coil.aspx |
Quote:
|
Quote:
Actually, the better the air flows and the fewer restrictions there are, the less boost and the more power you're gonna make. So let's shoot for 10 PSI with the same pulley that was making 12 PSI on my 347. We can dream anyway. |
Quote:
|
Quote:
|
Quote:
- Would we want to put 351 Heads on our 302 block? Any strange problems that have to be dealt with doing that, or is it "the way to go"? - BTW, what about intake and carb, those seem important too. :nuts: |
Quote:
|
Quote:
Don't we have the lower intake for the blower already or just the blower case? I'm also not sure what size carb we should run. My guess is around a 750 because of the blower but I'm not sure. |
Quote:
I have the intake made for this blower. I would suggest the Mighty Demon 750 blower carb. It worked very well for me. Unfortunately, I traded it for something else about 2 months ago because I'm not planning to put the blower back on my 347. |
Quote:
|
Quote:
|
Quote:
|
All times are GMT -7. The time now is 06:53 AM. |
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.