Are these realistic goals?

[ga94gt]

I am putting to gether a 306 TW heads, B-31 cam or FTI (have not decided yet), ported cobra intake, 24-30lb inj, and the mods in my sig.

I am looking to get about 280hp 300tq to the wheels through the auto. I am hoping for 8.2-7.9's in the 1/8. Are these realitic goals for my combo with an auto vert?

 

[ga94gt]

no suggestions?

 

[MysteryMachine]

I asked close to the same thing on here a few days ago. I'm thinking about a 306 with twisted wedge heads, TFS stage 1 cam, 30's, TFS street heat, 75mm tb, 90 LMAF. From what i understand it should be close to 300 hp. So your setup should be fairly close too I'd think

 

[BlackPearl955.0]

Yes that should be reasonable. As I have been told so many times 1HP per ci is a good base line

 

[dstang01]

Ive heard good things about FTI, and Id imagine that combined with the tw heads (which are very good) and a ported cobra should definately get you 300 rwhp. The only thing that may rob you is the AODE. Also, the vert has nothing to do with power output

EDIT: the vert weight will affect your ETs though

 

[ProKiller]

it does when you talk about 1/4 or 1/8 mile times. the verts are very heavy and hurt you there.

you should be close to that. if you don't make it right away, you can always tweak it a bit by adding a bigger TB and injectors.

 

[95Vert]

My SN vert weighs only 3180lbs...

IF you want to really hit your goals, get a custom cam. I'm running a www.camshaftinnovations.com cam and is excellent. Check him out.

 

[dartvader]

just to give you an idea, look at my signature, went 8.33 in the 1/8 mile and 13.09 in the quarter, full weight Gt, only 33 degrees of timing no short belt or underdrive pullies, was only able to make one pass and had to gome home, started raining .
I think with a little more timing some race gas,and some little things it can go mid to high 12 .........

 

[5spd GT]

Those goals are realistic with an FTI camshaft and some nice suspension work.

The weight is going to be a factor, along with the AODE.

It is not impossible, but do not count on it with a budget.

The tune will need to be taken advantage of as well.

 

[95Vert]

just to give you an idea, look at my signature, went 8.33 in the 1/8 mile and 13.09 in the quarter, full weight Gt, only 33 degrees of timing no short belt or underdrive pullies, was only able to make one pass and had to gome home, started raining .
I think with a little more timing some race gas,and some little things it can go mid to high 12 .........

FWIW, those heads are not letting your engine perform to its fullest. I went 13.0 @ 105 with 4.10s, unported gt40 heads, cobra intake, and an old cam, don't remember the specs. I believe it could've gone 12.80s but my clutch gave out on me and I never took it back before my new mods.

 

[dartvader]

FWIW, those heads are not letting your engine perform to its fullest.

Don't want to hijack this thread, but i'm not sure what you mean by that , my friend Paul Riva has AFR165 on a low compresion 331 and he's making close to 355 rwhp

 

[MysteryMachine]

Don't want to hijack this thread, but i'm not sure what you mean by that , my friend Paul Riva has AFR165 on a low compresion 331 and he's making close to 355 rwhp

I thought paul switched to 185's? either way afr and tfs heads should out perform gt40s

 

[95Vert]

Dartvader, I'm not sure on Pauls combo either, but I would imagine he's running 185's. If he's running 165's, then he TOO is leaving too much on the table. But like I said I DON'T KNOW his combo.

Regarding your combo, I didn't mean anything bad by it, I just compared it to MY combo with gt40's. MM has a point, they SHOULD but don't always do.

 

[95Vert]

This is just a temporary combo, the heads/cam/exhaust/fuel system/etc will all be replaced soon, more on that later.

I looked up Paul's combo and he is running 165's but he KNOWS he's leaving a lot on the table, and this comment proves it, especially on a 331. And I'm willing to bet the farm that he went with low compression because he'll be getting a power adder.

 

[5spd GT]

Yep, he went with 8.8X:1 compression for a power adder.

The AFR 165's and his old 302 cam (retarded the cam) is still in it.

The AFR 165's plain work.

It also gets rid of that theory of 302 parts make 302 power

 

[final5-0]

Yep, he went with 8.8X:1 compression for a power adder.

The AFR 165's and his old 302 cam (retarded the cam) is still in it.

The AFR 165's plain work.

It also gets rid of that theory of 302 parts make 302 power

You know what folks ... I was very impressed with what Paul did

I just wanted to say .....
I thought a lot about it
and
I came to these thoughts

A 331 with that kind of power with ............
low compression
small heads designed for a 302
a cam designed for a 302
shorty headers
65mm tb

Well ... what we saw there ........
is not the norm
for what we have seen others do with similar combos :Word:

I had to ask myself why ???

He got different results
so
What did he do that was different

Here was the only things I could come up with
He runs speed density
He tunes with a different method than most
I think his dyno pull was caled with a STD rating

When things are the exception to the rule
Well ........
There is always a reason for why that is so

I don't deny he did what he did
but
I'm not ready to pattern a 347 combo around those methods ........

At least ... not until I have a better understanding why that happened

To the original poster
The aode will sap a bit more power

I'd focus in on other aode combos to see how they did on the dyno

I've seen most of them put up a bit less on numbers when talking dyno

but

They don't seem to be at a disadvantage when talking about strip use
if they've done the usual auto trans mods

Grady

 

[ga94gt]

I have not gotten a chance to get on for a few days sorry i have not reponded. If I could go 8.33 i would be happy. I know the vert is heavy and the auto is killing me

I have heard really good things about FTI that is why i chose them. But to help me get there as far as suspension I have UPR adj upper/lower ca's, welded subframes, and will be running on et streets.

 

[5spd GT]

Oh, I have no doubts to why he made those power numbers, but I have seen similar combinations make similar numbers, with a bit less.

Add one more to the list Grady. His engine was also internally balanced (like the ls1)and well built. That is a plus for power as compared to others.

I am curious to see how much that speed density/tuning overcomes the compression he does not have. I imagine they would almost cancel each other out, but then again, tuning is not my forte

My point is, I do not believe in "302 parts make 302" power. I have seen 351-408 CI engines make 375+ rwhp. But they had 302 parts Now, we know I am taking extreme situations but I do not want people thinking that just because alls they can afford (or have on hand) is going to make their car perform like a 302. Even though we all KNOW it is a huge restriction on some engines.

 

[gmkillr]

302 parts do make 302 power and if you believe not then your either ignorant or stupid.
A 331 "0" balanced w/ the right heads, cam, and intake will make 400 at the wheels all day long, not 355. Pauls combo is great for what it is but everybody and there brother know theres a boatload left in it. Not to discredit 302's cause I have a good friend of mine, Paul knows him too, that has a stock 302 bottom end that goes 10.60's @ 125 all motor. Its all in the combination.

 

[Killercanary]

ga94GT- your goals are withing reach. Look up onebad95, he put down 280rwhp and ran a 12.9 at 105 on his one and only pass at the track with a '95 'vert, AFR 165's, FTI cam designed for a blower, and an edelbrock intake. I think you'll need to get a more agressive converter in there to do it and run at a low elevation track to obtain the ET's you are looking for.

As for my combo, it made more power than i thought it would. I will say this, I fully expect to make close to 400rwhp if and when I change the cam, heads, throttle body, and exhaust. If I had to do it all over again I'd have built a high compression 363 and been done with it, but I didn't think that I could reliably make 400rwhp and yet retain great street manners because so many with better NA combos than I have make similar power to what I'm doing now with my mismatched combo. Now that I know it was possible I am kicking myself.