Sorry to be redundant, but yes i have followed the debates for some time here on thirdgen.org about the different intake manifolds. I obtained a super ram very cheap, but i am having second thoughts now. I would really like to pull more RPMs than 5k and dont want to go through the hell of putting this thing on. Right now Im running 14.2 @ 97 (2.2) with my setup. I want to break high 13's next year, im sure drag radials will get me much closer, but i want to trap over 100. Would i be better off with the LT1? Should I sell the superram, trade it? or what would you do in my position?
Thank you for the replies in advance!
Matt
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86 IROC-Z, original LG4 car
91 SD Vette L98
Edelbrock Tes Headers
TPIS big mouth lower intake manifold
FLP hi-flo cat, FLowmaster intermediates, Raven muffler
FLP Level III 700R4
3200 Vigilante Lock up converter
LT1 rear end, 3.73 gear, TA rear end cover
ASCD SS Hood
02 Ten Spoke SS
CAI
236 RWHP, 309 RWTQ
14.2 @ 97 (2.2)

 

It's all a matter of preferance... the LT1 intake will allow you to twist the motor higher, and the SR will give more low end punch. Judging by your converter and gears... IMO - go w/ the LT1 intake.

 

If you can use the LT1 intake, then you must live somewhere that doesn't inspect for emissions. Why not try deleting your smog pump and blocking off your AIR stuff and seeing if it makes much difference?? There is a tech article showing the belt routing & size, and it won't cost anything but the belt & a little time. It seemed to help my car a little bit. All my intake parts and entire long block are still stock / unported. Never had a valve cover off.

 

To answer the question though, I'd go with the LT1 conversion and sell the Superram. Then I'd put the money left over from that towards further improvements. Those superrams bring big $$ on eBay.

 

It depends on what you are looking for........Low end torque and power to 5500 stay with SR, If you want more top end power go for the LT1.......

 

Stay with the superram, I regret selling mine.

I'll buy it from you or trade my LT1 intake if you can use it.

 

Superram all the way - I think the gobs of low end torque that our L98 and LB9 cars are characteristic for is fantastic, and I aim to keep it while improving top end at the same time, and Superram allows for that.

 

I'll take your superram if you decide to sell But also I think you should look at your 60' times, they aren't spectacular. I think you could improve 1/4 by a bit if you did some traction work. Save radials for later, your rearend will thankyou.

 

Personally, I'd change the cam. You need to take advantage of the good that the Superram has brought you. It'd be alot cheaper, and I think that you'd definately see 13's. The Superram is great for low end torque, but it can also pull pretty decent up high. You get the best of both worlds. Just my $.02.

 

IM sorry that i forgot to state that if I do go with the Super ram i will also be ordering the LPE 219 cam. Im still unclear whether or not the $320 is for a cam kit or just a cam??? Anyone know?
Thanks

 

If you don't pull past 5k with the SR, then its not the shortcoming. Stock SR's make plenty decent power to 5500 and with some porting pull easily to 6.
just a thought.
good luck in whatever you decide though.

 

That is for the cam only. Keep your eyes peeled for used ones....I got mine for $190.

 

What all did you port on your SR? Did you do a before and after? I have my SR intake off and am waiting on the rest. Did you port the base also? Thanks

 

My SR has seen 6500 a few times in the past week and a half.

The old TPI set up would shut down around 4500-5000rpms.

Used to **** me off . . .

But now I'm happy!

 

any other decent cam selections taht are cheaper than the LPE 219? Id probably like to go with 1.6 RRs as well as some stiffer springs, maybe 125#?
Thanks
BTW. this is an almost daily driven street car that will see limited track use. Maybe 3-8 times a season.

 

The 219 is the best cam for the job. I regret selling mine. Since you don't hit the track much, you are probably concerned with gas mileage and drivability, so it's the best one for the superram. The price is for the cam only, if you can't stand paying it, look at the comp 218/224 or 224/224 .525 lift.

 

Like others are saying you might want to slap a 219 in there. You could also call up Comp Cams to have them custom grind you one. If you get one of their good guys on the phone he'll ask you nearly every part of your engine and drivetrain and then ask you what you want out of the car as far as performance, emissions, and driveability.

My L98 baselined at 211 hp / 315 ft/lb at the wheels. After adding some worked heads, a non-ported Superram, and 219 cam it made 322 hp & 368 ft/lb at the wheels without any tuning at all. It was putting 300+ horsepower to the wheels from 4400 to 6300 RPM. The bottom end's A/F mixture was so rich you could paint the rear end of the car black in a week. There is tons to be had down low still.

I have 1.6 rockers on the car, so that mkes the lift .560/.560 and increases duration to something like 221/221 instead of 219/219. The valves open faster/longer with the higher ratio rocker which is a big help.

Driveability was excellent and she idled smooth at 900 RPM.

 

Scorp, those are the kind of numbers I'm looking for. I have my Superram ordered, already have SLP runners and ported plenum. What cam and rockers were you using for that setup? It is going to be my next purchase from Summit. Any P/N's you could give would be appreciated.

 

i was getting ready to say just that dood... i know this guy and all i have heard from him since he switched was that he regretted switching from the superram. my $.02... stay with the superram... its a proven intake... the LT1 is not a direct bolt on... you really need to be good at fabing stuff... no offense john!!!

 

The SR will sure as hell make h.p. above 5k with the right combo.. Mine peaked at 6300 with 255 cfm heads.I personally did not like the 74219 cam with my 383 SR setup. Too mild for me.. People have had good luck with it though.

 

My SR pulls hard to 6000 (the highest I've revved since the motor is relatively new). what max rpm are you looking for? If it's under 6500 (and surely it ought to be) then the SR will be just fine for you.

 

I agree. My last time at the dyno I put down a lean 342 hp @ ~5200 rpm and 392 ft-lbs at about 3900 rpm. Still over 300 hp when i let off at 5800. I'm going next weekend again to do some more tuning and will spin it a little higher as I've begun shifting at 6200 at the track. Now if on'y I could learn to launch and drive this thing. On another point, I'll be swapping to an LT1 intake to try on the dyno to see what the differences will be on a direct LT1/SR intake comparison. I'll decide which one to keep when I'm done.

Almost forgot.....Kevin G....if your the same Kevin G I'm thinking of...long time no see. The GTA rear is still holding up well!!

 

What do you run with that setup?

 

Too dam slow. My best was the last time out when I started shifting higher.....before I was shifting at 5800, but the above curve said I could spin it a little more. ANyways it was a 13.2 at 106.7 on a 2.0X 60 foot. Anyways.....I hope to get that magical 12 second slip this weekend coming up at Darlington. I tihnk the car can do it, its just the driver holding it back.

 

OMG!!! Dude I remember you driving all that way to pick it up

And you yanked the 4.10s out anyway right??

What was that.... 5 years ago ? LOL

 

KevinG I think I remember you too. That was way back in the day when Trax came here all the time and Tom Keliher. Back when it was the old Missouri.edu server. I took several months off and on in between. I am now very close to having a combo like yours.......4 or 5 years ago. LOL

 

Yup. Back in '97 or maybe even '96.....always fun to do a road trip!! lol Yeah I swapped the 4.10's for some 3.42's.....that was just too much gear for the car back then. Course NOW I wish I had some 4.10's, or maybe even some 3.73's since my T56 is the G92 '93 version. Anyways.....I don't really visit the board much, usually just when someone sends me a link that interests me, so I was a little suprised to run into you in here. If I don't get the 3.73's I'll probably be stepping up to something stronger.....as I still have an ATI sitting in the garage to add when I get some other stuff worked out.....want to buy the rear back... ?? j/k

 

LOL Yep, I remember the horrible color scheme of that board too Talk about back in the day. Funny thing is we both have relatively low post counts.. I mostly just read, and moderate the TPI board, staying behind the scenes.

 

I remember you buying that rear and I tried my *** off to keep you from switching those gears out.. Mostly because I had set those 4.10 gears up soo damn quiet with that rear, that I have not done a set of 4.10s since that were soo quiet..


I do not post much at all here either, just moderate, and try to stay out of arguments ect.

After having totaled my 91 GTA, I bought an LT1 4th gen, and have been messing with them for the last 5 years or so.. 383 blown stroked and aftercooled 94 Z-28.

I am now even selling this . Put it back to stock

Good to see some old timers still around!!

 

SINce it was asked what this setup would run.....had a new best today at Darlington. My last run of the day. The car lept getting faster as I hotlapped it 4 times in a row. et 12.947 @ 108.14 with a 1.962 60'. No changes to the car since last time except some messing around with the upper RPM timing maps.

 

Ragtop, are you the same ragtop over at lastgen?

 

I don't think i've ever been to last gen so probably not me. Sorry.

 

That would be me over on LastGen.

 

I knew that it was ragtop something. hehe I'm going to make a mental note that's you're 89.