Who has the fastest naturally aspirated TPI here? What are your dyno #'s and 1/4mi times? Can you run high 11's with LTR's, AFR 190's, 58mm TB, and a good cam in a 383 stroker? Thanks

 

If you know what your doing, you can run high 11's with a LTR 350!
http://www.mycar.net/mafb/registry/detail.cfm?id=201

 

Exactly. It's just important to point out that non-siamesed base LTR doesn't really have quite the same potential.

 

I've run high 12's with my 305 5 spd normally aspirated (11's with 125 hp nitrous) - it has the TPIS large tube runners (non-simaesed), TPIS Big Mouth intake & I've ported the stk 305 iron heads.

 

I don't know why i always forget your car. You truly do build amazing LB9s Tim. If i get a cage in this thing (next year at the earliest) i'll definitely be chasing you, NA anyway. I'll get booted for no 10/12 pt for 11s though and f - that nonsense, lol.

 

Man....I thought my 8.0 @88 in the 1/8 was fast with a NO2 305. all internally stock, but a cam, headers, and stock TPI with SLP runners. what cam you running??

Thanks


Chris

 

The TPIS SP-L98 with 1.6:1 Crane self aligning full rollers & a Pete Jackson noisy gear drive. I also swirl polished the stock 305 (1.84"/1.5") valves & shaved the heads for a 9.64:1 CR.

 

Hey guys, what heads and cam would you recomend? I have Comp Cams ex energy hyd roller cam with 210intake and 220exhaust. I was thinking of AFR 190 or 195 heads and an LT4 hot cam or something from TPIS or LPE. Would a 52mm TB be ok or should I get a 58mm TB? What is the max rpm range on a modified TPI, is it possible to make the engine pull to 5400 or 5500rpm. I still want the car to idle smooth and behave well in stop and go traffic. Are the TPIS simaesed intake pieces worth the money? Can anyone show me their dyno sheet, I want to see the power curve. Thanks for all your help guys.

 

Hey Tim,

Every time I get close to you (E/T), you pull away (again). Are you ever going to let me catch you? Well, maybe I need to go on a 400 pound diet so I can equal your running weight......

 

What TPIS siamesed intake pieces? They dont sell any that I know about. They have their big mouth intake manifold, and large tube runners, and the miniram. What else?

Here's my dyno sheet: http://para.noid.org/~thresher/dyno.jpg

Mods are in the link in my sig. I know I'm not the fastest LTR TPI but I dont do so bad.

 

Kevin91Z

In the back of the 2001 TPIS catalog there are dyno camparisons and they show TPIS siamesed LTR's, I thought that you could special order them, maybe not, they must mean if you do it yourself, my bad. Thanks for the dyno sheet. Thats a nice flat power curve, does the car feel like it pulls hard up to 5500rpm like the dyno shows? How does your car idle with the LT4 hot cam? Do you think you would gain anything by going to a 58mm TB? Thanks again

 

11.7

460hp
510lbs

 

KDoggsPimpJetta

What brand LTR's are you using to get 460hp and 510tq? Do you have a dyno sheet you could post? Stick or auto?

 

What's the fastest N/A TPI ltr, no siamesing enigne? I'm trying that right now. I built a 383, Dart 200cc heads, 214 224 duration and under .500 lift on the cam, TPIS lower intake, AS@M large tube runners, and a 58mm throttlebody. It takes out LS1's. I'm taking it to the drag strip tomarrow hopefully. In about a week or two I'm going to pull the 383 and I'm building a 413ci 210ccAFR heads, and a 230 244 duration with .56 .595 lift hydraulic roller cam. I know the cam is overkill but I want to see what it will do with th TPI. Wish me luck.

 

Your best off not playing around with that LTR stuff.

If you want a TQ Pig TPI setup then go with the Superram, and be done with it.

LTR dogs out up above 4800rpm when mixed with a stroker or more cubes. Its just no fun after that point.

Superram will pull very very hard till 6000, and not give up any bottom end grunt.

 

Dang Tim and i thought i was one of the few that had a strong 305. there are very few of us LB9 guys even in the 13s, much less the 12s!!! guess i got alot more work to do.

 

I swear, any time I ask for advice on something about keeping my car TPI and trying to make it quicker someone says to buy a miniram, stealthram or some other type of intake. Besides I though we were talking about fast LTR's not a somethingram...

 

dude I am not trying to bash you or pile on.

but seriously, this guy is asking for opinions, Superram is still TPI, but on steroids, so i give him my .02

in TPI world, a hopped up LTR is like getting to 3rd base, a Superram is a homerun

i dont like the fact that people classify the Superram as something differnt. it is most certainly not, when considering a hopped up TPI setup the game plan for a LTR or a SR is 95% the same.

it is not a radical departure of concept like the Stealth Ram or Miniram which are entire different motors when it come down to it.

 

sounds like a solid setup, outside the cam

you will run into the problem that the AFR heads have a wicked exhaust port, which is good

however the split in duration of that came is gonna blead off cylinder pressure at low rpms, over scavenging while that TPI pumps air into those overbore cylinders.

opinion of alot of us that are successfull with TPI will tell you that something closer to a single pattern cam is what you need when running a good set of heads like you have.

 

Thanks for the advice, thats more of what I was looking for. The cam is just a cam. I know its probable to big but I can always change it later but for now I'm going to build the 413 with the cam I have already bought then maybe later I'll get a "better matched" cam.
I want to see what a LTR TPI can do N/A without siamesing. After I get the thing running the best I can then I might throw a ProCharger on it. So I might keep mid 9:1 compression. But one thing is for sure I want to make the fastest LTR TPI N/A that I can make before I think about anything else.
I'm taking the TA up to Great Lakes Dragway after work if it doesnt storm. I hope to be somewhere in the 13's. Whats going to hurt me is my old H rated Cooper Cobras on the back that are almost bald. I'll try launching it soft but man, all that torque and I cant use 1/2 of it.
What about using my Dart heads on the 413? My engine builder will hand port the heck out of them for $400. I havnt ordered the AFR's yet and I have to stretch my budget if I want to buy them since I cant find anyone to buy my long block around where I live.

 

Only got to run 3 times at the track. First run I spun through sencond and ran a 14. Second run I idled it off the line and ran a 13.8. Then I let some rear tire pressure out. My friend helped push my car in the staging lanes. Get up there and get an ok but pretty bad launch. I'm catching this Mustang and about 2/3 of the way down the track my passanger side T-Top flew off and shattered on the track. I kept it to the floor and ran a 13.79 with a 2.5 '60. Man I was mad at my friend because he unlatched the T-Top to help push even though he didnt really help much. So I just took the other T-top out and went home. He's lucky I still have my T-tops from my Camaro.

 

Due to recent police involvment and other unforseen expenses I'm putting off the completion of the 413ci in order to build it right. I'm going to order the roatating assemble then I have to save so I can get the 210cc 100% ported AFR heads. I'm going to stick with my TPI so what cam would you recomend? The cam I have might be a little to big for the TPI its a ZZ-9X Hyd Roller: duration @.050 225/240, Lift .525/.558 (.560/.595 with my 1.6 rockers) on a 112 LSA. If I'm sticking with my TPI would this cam work or would a different cam be better. Any suggestions? See sig for TPI setup.