VincentZ28

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Go here!
https://www.thirdgen.org/forums/sout...times-san.html

mrestrictrplate

iTrader: (2)

One question. Do you like the car with the Miniram or the Superram better? Not really asking which made more hp, I'm guessing the mini, but which is more fun.

VincentZ28

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Miniram all the way and would not turn back.

skinny z

Did you post your dyno numbers from this current build?

VincentZ28

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In my sig

mrestrictrplate

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Do you drive the car on the street also or track only?

skinny z

I suppose I could have looked. Thanks.

VincentZ28

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Anywhere with the A/c on

SuperRamFormula

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For anyone that's interested I swapped my modified SuperRam for a stock MiniRam intake. Along with the swap I installed the 280XFI camshaft and OBX 1 3/4 long tube headers. I'm also using Dynamic Fuel Injection ECM to run it at the moment. My last trip to Milan Drag way I posted my fastest time to date. 11.94@113.62 with 1.688 60'. I'm still working on the tuning but I was happy with the way the car ran. Pass is on YouTube (1987 Firebird Formula 11.94). My previous fastest time with the SuperRam, SLP 1 3/4 headers and a Comp Custom cam very close to the XFI camshaft in specs was 12.024@112.47 with a 1.621 60' running on a custom chip and MAF. I have to say driving the car with the MiniRam it doesn't feel sluggish at all, there is a noticeable loss in low RPM torque below 2000rpm when the torque convertor locks but other than that the car drives pretty darn good. I will say that you don't feel the power drop off around 6000rpm it just keeps pulling and it's a pretty nice feeling. I will probably swap the SuperRam back in just because I want to drive the two intakes against each other a day or so apart instead of a month. I do think the MiniRam loses quite a bit of torque in the 4,200-4,800rpm right where my 1-2 shift falls with the 700r4. My e.t improvement could be attributed to the long tube headers. I hope to get out one more time this year and try to get a little better times.

VincentZ28

iTrader: (2)

That cam will go as high as 6400rpms with my combo. That's where you should shift it. To date my MPH is 119.62 in the 1/4mi. You should be in that range. DON'T be afraid to rev the engine that high.

SuperRamFormula

iTrader: (1)

Thx, I've only made 2 passes with the new set up and I'm shifting 1-2 at 6,300-6,500, 2-3 I shifted at around 6,100. I also locked my converter up at around 5,100. So I need to play with it some. I think part of the reason your mph is higher than mine is you've got the manual trans. I do think the miniram is probably better suited for a closer gear spacing than the 700r4 has. Thank you for the info, you have a sweet ride!

VincentZ28

iTrader: (2)

I found out 6500 was too high. Back it down to 6350. With the 700R4 trans, your speed should be around 118mph-120mph. Get the car tuned on the Dyno. What gears are you running? I have 3.73's.

SuperRamFormula

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3.54 axle Dana 44, 3,200 FTI lock up convertor. Nitto 245/50-16 drag radials.

VincentZ28

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You need 3.73's to get the car moving quicker off the line and back in the power band when it shifts.

bdiroc

vincent what is your best 60ft with 3.73? his looks pretty good 1.68, agree could be a little better, but if daily drive with 700r not a bad compromise gear.

VincentZ28

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The high 1.7's

86redIROC

I thought I was way too slow with my 12.04@110.55 with a 1.57 60ft. But what im losing with the Superram in trap speed im making up for in 60ft getting out of the hole. 119 is an fantastic trap speed! What was you best trap with the Superram?

SuperRamFormula

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My best e.t with the SuperRam was 12.02@112.47 with a 1.62 60ft. Now the be fair this pass was with the SLP headers and a slightly different camshaft profile. I'm sure the SuperRam would do better with the long tube headers I have now. My SuperRam is also fully ported and the runners have been siamese about an inch. That's an excellent 60ft you have. What gear ratio, stall converter combination are you using? Slick it drag radial?

86redIROC

I have 3.73 gears, 2800 stall on 16' Mickey Thompson drag radials. I assume your base manifold is also ported?

SuperRamFormula

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Yes, base manifold is also ported. The guy I had do it was surprised on how poorly the stock Accel casting was. I felt like I picked up some usable RPM after it was ported. But at the same time my heads were ported and I changed camshafts. I think the changes have me a broader power band. With these changes my e.t. went from 12.3@111 down to 12.02@112. Now the latest changes, Mini Ram, long tube headers and the XFI 280 cam I've finally broke into the 11's I think with this set up and some practice the car is definitely capable of 11.70-11.80's.

86redIROC

What heads are you running? Its seems hard to find anybody thats any good that wants to port a TPI base manifold anymore.

SuperRamFormula

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Older AFR 190cc ported to flow pretty close to the 195cc heads. The guy that did my base is a friend of a friend who now works for Watson engineering. There a performance company that works mostly with Ford's. I think the edelbrock base manifold is the only one still available.

86redIROC

Yeah I have the Edelbrock base. My heads are the Trickflow 175cc with 56cc chambers and 1.94/1.50 valves with 5 angle valve job and pocket porting. I think with a good port job on the base and switching to AFR 195s I could consistently be in the 11's.

SuperRamFormula

iTrader: (1)

Those are some good times with your combination. Probably the smaller ported heads are helping get those great 60 ft. But probably also why your only getting 110 MPH. What camshaft are you using and what RPM do you shift at? I personally think the 195's are a very good head for a combination street/strip car. They may out flow the intake though, maybe not on a 355. If I had to do it over again I definitely would've purchased those.

VincentZ28

iTrader: (2)

112mph but with the 355cu

skinny z

What's your setup? Sub 1.6's are pretty good. Do you know your vehicles weight?

1.62 is no slouch either.

86redIROC

I never weighed the car but its a full weight IROC only thing a little lighter would be aluminum heads. Running a 4L60 auto trans built by RPM transmissions with a circle D 2800 stall converter. 383 with 280xfi cam, Trickflow 175cc heads, Superram with Edelbrock base, Stainless Works long tubes to Magnaflow 3" cat back, Eibach lowering springs, Energy suspension poly bushings and control arms, Sway bars, KYB struts and shocks. Baer 13'' brakes.

skinny z

That's an impressive 60' considering the suspension. Pretty much like mine what with not having a drag racing orientated strut/shock combination. The only thing I've added are air bags to preload the suspension somewhat. I think I need new slicks. My old ET Streets have seen better days.
That 383 must produce a boatload of torque to get something as heavy as that (probably 3600 lbs) moving that quick. Very nice.

Tibo

iTrader: (15)

https://www.thirdgen.org/forums/tech...r-195-afr.html

I also have an older set of AFR heads in the 190 size. I did some minor port work as well as polishing and blending everything I could. Either AFR did a poor job designating which heads were the the competition port and which were regular and I have a set of competition ported heads or I have a set of regular heads and they are vastly underrated. Can you post your flow numbers?

As a side note my engine combo is very similar to your combos. I have a single plane intake and a decent size 4bbl throttle body. I ran the XFI280 with my last engine but switched to a 110 single pattern cam of comparable size.

I own a set of the Pre-Eliminator AFR 195 heads and had always received conflicting information on the flow numbers so I finally had them put on a flow bench. I thought that I would post the results as they are just as impressive as the new Eliminators in a 195.

Intake runner: 195cc
Exhaust Runner: 64cc
Intake Port Gasket size: 1205
Exhaust Port Gasket size: 1405
Cylinder Bore: 4.030"
Intake Valve: 2.02"
Exhaust Valve: 1.60"
Combustion Chamber: 68cc
Angle Plugs


Port for cylinder 8 or 1 was tested. The new AFR Eliminators are in ()

Intake Exhaust
Lift CFM Flow CFM Flow
.1 95.7 (?) 57.1 (?)
.2 172.3 (146) 110.4 (119)
.3 228.4 (201) 168.4 (166)
.4 263.3 (274) 198.9 (197)
.5 278.8 (275) 210.1 (213)
.6 280.9 (280?) 217.1 (218)

So to be fair there are a few points to make:
1. A different flow bench was used
2. I have 2.02" valves with a 3 angle valve job and the new design has a 5 angle valve job with 2.05" valves. Had I used a five angle and 2.050 I would have had higher numbers.
3. I had him use a 4.030" bore since that is my bore. AFR used a 4.060" bore. Had I had him use a 4.060" I may have seen a little higher numbers.
4. I hand finished my cylinder heads. I did no port work I just blended things smooth, rounded a few things and matched the combustion chamber to a 4.030" bore.

SuperRamFormula

iTrader: (1)

Those are very impressive flow numbers. I had mine flowed after the shop replaced the guides and did a 3 angle valve job. 2.02 int, 1.60 ex
Int. Exh.
.2 144. 116
.3 207. 153
.4 250. 184
.5 270. 195
.6 268. 199

I believe these numbers are without a pipe.

cuisinartvette

good period., look at .300-.400 nice
Accell base can run good IF you spend enough time can hiit the 270s.
Had a friend who flows my stuff just hit 280 on en edelbrock. Not bad.

86redIROC

Anybody have there base ported by Extrude hone? Got a quote to Extrude hone the base and the Superram upper $800. Not sure flowing the upper is worth it....

cuisinartvette

EH has its place but not with the TPI..if youre looking for a real noticeable gain