RX-Snake: Engine Related
I'm "half" excited.:D But I'm there.:thumbs_up:
I see where Ben is going with this. First question; will the SBF need a rear sump pan or a front sump pan in the RX7?:drink: After 2:00 pm today I won't be here till Sat around 9 or 10 am. |
I really like where this is going. Being a FORD guy I like it. Mazda will give a cool factor the Mustang II would not.:)
I say this, we leave Joe's engine as is with blower. I'm betting there is plenty of power just as is. Build the vehicle around that combo. A 2500 lb vehicle is going to run very strong with Joe's combo. Just throwing it out there.:D What type of speed/et are we shooting for??? I'm thinking an 11 second with the SBF.:thumbs_up: |
Looks like on a gen 1 the stock dual sump pan (Fox body style) will fit if we remove the cross member and turn it 180. Here's the info.
"...1st gen. Basic Kit for 289-302-351W Fords... This new addition allows bolt-in installation of the lite-weight 5.0, requires NO crossmember modification, yet still fits under the hood !!! The secret is simply un-bolting the stock front crossmember (6 bolts), then REVERSING it 180 degrees and re-installing it. This causes the center portion that interferes with the oil pan to swing to the rear instead of the front, allowing a stock double sump late Mustang 5.0 pan to straddle both the crossmember AND steering linkage!!! A short oil filter (or 90 degree adapter) is required, but the low placement buys you a lot of room under the hood for air cleaners and such. Lots of room for headers too. With this kit, the EFI manifold from the Mustang 5.0 will clear the stock 1st gen RX-7 hood." I found it at http://www.grannysspeedshop.com/ |
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If we're going to build a purpose built car, even if it's dirt cheap, I think it makes sense to target the mid 11s or faster. This, however, means we'll need to cage it, which probably ain't such a bad idea for safety and all. |
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Yes, some sort of cage is going to be needed. :):drink: We need a name for this--- Like Mazbra or something simular?? "Cobza"---you get the idea. |
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I'll look into repairing the blower. It might take some swap meet trips. I tried to source the parts I needed shortly after my crash and didn't have alot of luck. |
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Yeah, the blower was reconditioned between the time I pulled the 302 and switched to the 347. It was making ~8PSI on the 347, then I switched pullies and increased it to ~12 PSI. I'll dig through my stuff to see if I can find the larger pulley. We should probably start off with the 8 PSI or we would probably need to replace the head gaskets with MLS. |
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I remember now, a 4 point if faster than 11.5 and 6 point if faster than 10, right. I don't see us running 9s:judge:, but faster than 11.5 is distinctly possible and a good goal I think. Keep us posted on the blower and if it seems like too much of a pain. I have been curious to build a ghetto turbo car, and some of those turbos off the old GM diesels are very cheap. But that would certainly add some complexity to the system. |
What all is done to the engine?
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We can run VERY sticky rubber at the track, and if we really want to optimize for straight line we can set up the suspension for it as well. How much we want to optimize for straightline performance, or whatever, is another question. I'll think of some names after I've had a few later on tonight. Look out. |
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Here's a link to what was done on the heads.http://motorgen.com/forum/showpost.p...4&postcount=98 |
is this thing getting blown or turbo'd ?? also im guessing its staying carb not fuel injected?
also how is the fuel system gonna be set up? if you guys wanna save weight you can toss out the stock tank and make a 5 gal fuel cell. also wat fuel are u guys using i think that if you guys go forced induction then u gotta go 100oct, c16 or e85 |
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And if we stay carbed we just need a Bosch O2 sensor and we can tune it with my LM2. Is it a Holley carb? Holley carbs are cake to tune.
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Where do you live? PM me your # and we can make arrangements to get the engine & tranny over to you next week, maybe. Do you have a hoist to lift the engine out of the back of my truck once I get there? |
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Thanks, I'll call you this weekend. Either way, I'd be glad to haul them to your place or you can pick it up. They are stored at my place of business, here by Angel Stadium, so it's not that far from you. |
SBF and Trans Pickup
Just picked up the engine and trans from joedls. Also completed transfer of ownership. I was relieved to find there were no problems with the title and it went smooth as pie. The gal at AAA said she had heard of something like the show car regsitration (easier than the custom built), but wasn't sure because AAA doesn't handle that.
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Head Work
BRUTAL64, when can you receive the heads? Also, did you say you were in need of something you don't have in order to do a top flight job on them? If so, what is it.
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Repairing the 174
joedls, what do you need to repair the 174? Are their repair kits? Is there a way we can help to get you what you need?
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What I need is a seat grinder and a valve grinder. I sold both mine 10 years ago.:o You say top flight??? Hell, I thought you wanted them "ported" not "pretty".:D |
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Using 351 Windsor heads or a set of cheap alum heads. I'll be more than happy to port the 302 heads, it's just the exhaust port --no matter what I do-- it's going to be too small so are the stock valves. Saturday night we'll sit down and talk about the best way to go. Don't know on the headers yet, we could go with shorties if nothing else is out there.:drink: |
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What are the price points for other heads? 351W Alum ? For money and time invested, it kinda sounds like we'll get a better ROI on using different heads perhaps. :huh: |
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Jim Galloway reports he is very happy using the BBK #15690 headers on his conversion. BBK calls them "351 Swap Headers", and they come with 1-3/4" primaries, 3/8" flanges, and dome style collectors. They are available in chrome (#1569) and ceramic coated (#15690) finishes, and you can get them from Summit Racing. |
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I'm not a Ford guy, so I won't make specific head suggestions. But we should be checking E-Bay and craigslist for some better heads periodically. |
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Ford Aluminum Tri-Pro 5.0 302/351-W $299.00 $275.00 100% Satisfaction Guaranteed! http://www.tristatecylinderhead.com/catalog/ Single Head Bare 60cc Combustion Chamber Choice Of 175cc Intake 190cc Intake Runners 210cc Intake Runners Phosphor Bronze Valve Guides 100% Satisfaction Guaranteed! Single Head Built Complete $399.00 3/8" Screw-in Studs & Guide Plates Stainless 2.055" or 2.02" Intake Valves Stainless 1.600" Exhaust Valves Performace Springs Good To .550" Hyd. Roller *130 psi @ 1.800" (closed) *340 psi @ 1.258" (open) These are the guys I got my heads from. |
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Maybe 07GTPONY would be interested by getting involved with a donation. Wink wink nod nod. You know the rules. Donate or put in some real labor and (if you are checked out driver) you can drive the thing when done. If not, which is fine too of course if he has other plans, which of the above would you recommend? Our application will be boosted. Whether we get the 174 to work or something else . . . |
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Forced induction, is what I've always thought we will go. Fixing the 174 should not be a real problem. Alum heads would be best all around. But cost--------------- I think I can drive a 4 speed:judge::judge::rolling::rolling::leaving: |
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Alum heads are really good for forced induction. The aftermaket heads will have the latest "good" chambers and will take more boost than cast iron factory.:judge: With only 4 head bolts per cylinder we will need to think "O" rings or a VERY special head gasket. I have a DVD on this somewhere. |
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Heads are galdurned important for power, so a little extra scratch here is ok. :leaving: It increases the value and awesomeness of the car in a critical area. FUNCTIONAL COMPATIBILITY Should we care so much about matching this head choice to whatever FI we end up with? We're assuming the 174 can be repaired, but if it can't and we go with say a 6/8-71 Turbo (which I have a soft spot for), or if bird can make a bombass hookup with Wieand, will the same heads be equally awesome. I'm assuming yes. The cam is obviously a different story. |
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