Timothayyy

iTrader: (2)

okay heres the build up list
comp cams xfi268 camshaft
ported and polished corvette L98 heads with LT4 lifters and springs [someone local is selling me these heads]
Hooker exhaust, shorty headers
edelbrock 3704 intake
whipple supercharger, 6lbs of boost
454TB
T56 transmission, aluminum driveshaft
MSD cap, rotor, coil
EBL Flash and a dyno tune
NGK TR6-IX spark plugs
Moroso oil pan/pump
Aeromotive 13301 and Walbro 255 fuel system


I just want to know what kind of dyno numbers you guys think ill make, because id like to maybe have some kind of idea as to where all this money and work im putting into the little 305 will take me.

Thanks!

freestylzz

[QUOTE=Timothayyy;3811805]...because id like to maybe have some kind of idea as to where all this money and work im putting into the little 305...QUOTE]

I'd put it elsewhere.

But to each his own.

Timothayyy

iTrader: (2)

Yup, hoping to have a hot little 305. But maybe a 350 or 383 could be in my car sometime in the future.
But for now im trying to see where these parts will take my 305.

LoudmouthSS

iTrader: (6)

i would say 300 wheel isnt out of the question

Timothayyy

iTrader: (2)

Thats good, I was hoping to end up somewhere in the 300whp range, with high 300 or 400lbs of tq.

ShiftyCapone

iTrader: (7)

Assuming you can tune it with EBL (most places won't tune TBI right) you would be well ahead of 300rwhp. The real question as stated above, is why? You would spend $13K + in parts to retain a old worn out 305 small block? Why not just build a $5k 350/383 that would make 300+ at the wheels. Horsepower per dollar goes a lot farther when you have realistic goals.

$50 per hp or $13 per hp.

Timothayyy

iTrader: (2)

This is true, but I already have 90% of the parts already, so lets just roll with it and see what I get!

Besides no reason I cant move up to a 350 later on.

And total cost is going to end up more around 6k in parts, not nearly 13k.

As soon as this engine gives me any trouble Im moving up too a 350, all my parts will move right over.

8T9 BANDIT

there's more then a couple 11 and 12 second 305's on this bord, timothyyy, use youre search button. that will give you some good answers to youre qusetion. seems these days, most people just keep repeating the same dumb answers when some wants 305 advice.
look here- https://www.thirdgen.org/forums/orga...-305-cars.html
and here- http://z9.invisionfree.com/nythirdge...p?showtopic=87

Timothayyy

iTrader: (2)

Seen most of those cars before. Yeh I know their are some really fast 305s out there, I just wanted to see if anyone had any idea what kind of numbers this build up would get. The only major part I need to get is the heads which im buying from some guys down the street from me, everything else I have.
Everyone seems to say superchargers arent that good with TBI, but ive read about some of the 454 guys getting 40-50% increase in HP with the Whipple supercharger, so I havent the slightest idea as to what to expect from my supercharged set up.

But im expecting at least 300whp, if I dont get that then im going to be very disappointed, if I can nail upper 300whp I will be very happy as most cars in my area will be toast. I only dynoed 146whp with the exhaust and fuel system and I already was neck and neck with my friends manual Audi TT and got beat by 1 car against a modified Lightning, so with more then double that hp I need not worry about very many stock or stockish cars.

8T9 BANDIT

im not familiar with that cam. but with all those mods, and if you get the tuning right. mainly enough fuel. i think you may be pleasently surpried for sure.. remeber hp sells cars and tq is what wins street races.

Timothayyy

iTrader: (2)

Yeah I dont know anything about camshafts [I had a local shop pick this cam out for me] but im getting it tuned at www.classicgtmotorsports.com/
I found them on here acually, and I emailed them a few months earlier and they have done more then a few TBI tunes, so I should be good. Im just gonna put everything together, increase fuel pressure [better too rich then too lean] and hopefully limp my car over to the dyno shop.

I should be 100% done by the end of august or the beginning of september [im in germany til the 24th of this month] But once I get all the numbers in and everything ill be sure to post pictures as to how everything looks and give you guys the dyno results.

mesterz2889

i doubt you will even hit 300hp just make sure you have a solid bottom end than turn up the boost

8T9 BANDIT

why????????????????? those heads and that cam should make about 250 or so with over 300ft lbs. add 6-8psi and yes thats more than 300hp

ShiftyCapone

iTrader: (7)

Before EBL this was correct. The stock ECM cannot support boost, therefore it was impossible to tunbe for. EBL will allow you to tune for boost but it still requires skill and TBI tuning experience. I doubt the people offering the dyno services will get it correct. This is not the same as tuning any old OBDII boosted car. None the less, you are wise in going with EBL, otherwise your combo would make less power than stock.

FWIW, Fast355 has made almost 400rwhp from N/A TBI combos (under 350 cid too!). It can be done, but it takes an advance knowledge of these systems.

Timothayyy

iTrader: (2)

Well we will see where the shop gets me. Maybe ill buy a wideband and start datalogging and tuning myself a few months down the road.

ibmtech

iTrader: (1)

You can always repin your ECM to run either a 1227730 ECM with a AUJP chip and a $58 mask. This of course means that you will have to change from MAF to Speed Density. And if you are planning on running a boosted ECM 1227749 with either a $58 or $59 mask will get you so you can tune your car. I can get you all the schematics on info on what you will need if you like

Timothayyy

iTrader: (2)

I thought the EBL flash was like the best?
I mean I havent even had it 6 months, I dont feel like getting something else and spending more money.

urbanhunter44

iTrader: (3)

Sounds like a neat project but LT4 springs = bad imo. I've never liked them. Aftermarket springs are available cheaply.

Timothayyy

iTrader: (2)

Ill just keep the lt4 springs and stuff, because I plan on going to a 350 and some AFR heads maybe next year, so the L98 vette heads with the LT4 springs are basically just to get everything up and running for the next year or so.

Timothayyy

iTrader: (2)

http://www.jegs.com/i/Comp%20Cams/249/2136/10002/-1
Thats the timing chain I got, Comp Cams 2136. Thats the proper one, correct?

And I also ordered all the gaskets I need and as far as ignition goes I ordered MSD coil, cap and rotor, plus I got NGK TR6 plugs [now that I think of it, will those plugs work with L98 heads?]

I ordered a proportioning valve for my LS1 brake swap.

http://www.jegs.com/i/Auto%20Meter/105/4907/10002/-1
Thats the Boost gauge I got, should work good with my Whipple?

Also bought a windage tray and ARP bolts.

Alright, thanks guys.

Timothayyy

iTrader: (2)

Also ARP told me to get 234-5501 studs for the Moroso Windage tray.
Are these the correct studs?