i have a couple questions for u guys....what manifold base is the better one....accel''s superram, eldelbrocks, or tpis's bigmouth....whatever one i get i will siamese it for a little more umph.....and can u use any companies runners on n e other companies manifold base...thanks guys!!

 

Whichever is cheapest since you plan on porting it a bit anyway. And yes, the runners from one company will fit another's base since they all claim to fit "stock" manifold bases they are all inter-changeable.

 

that solves that..lol thank you!

 

what base would flow the best out of the box

 

TPiS's probably since I believe its a ported edelbrock?

 

Supposedly, yes. There again the TPIS is probably the most expensive to.

 

i looked at tpis's site the other night and there bigmouth is 425 edlebrocks is 459 and the same for the accel base...so i guess its the tpis if its a ported edlebrock thats even better! alls i have to do i siamese it

 

And for $400 you can get John Millican's modified LT1 intake which will be the last intake mod you'll ever have to do. www.lt1intake.com

PS: Don't believe the people that say it will kill your bottome end torque. I just installed a Miniram (which the LT1 intake basically is) on an otherwise stock engine. I have MORE torque < 2,500 rpm than I had with the TPI setup. And this is without an optimized eprom (that I had for my TPI setup).

I would say I loss a little (and I do me very little) torque from 3,000-3,500 rpm, but everywhere else its more. Especially after 4,500 rpm. I can now add a cam and have the engine make some REAL power.

 

even without personall experiacne i know that losing low end torque is lt1's make there peak torque at 2400....whats the diff between his and a stock lt1 manifold....how much of a torque and hp increase will u get from this conversion....and what does it intail....just a bolt on or what?

 

Glenn,
Have you had problems with coolant? I have heard horror stories of people having coolant leaks into there oil.

Also f-crazy,
Selling your TPI intake will cover most of the cost of your LT1 intake.

 

i kinda want to keep my tpi setup...i wanna fully siamese it and do some runs with it then do the lt1 swap...how far in can i siamese the stock runners on the tpi? it looks to me no more then 3/4 of an inch on the top maybe a little more on the bottom...can i use my 19# injectors on the lt1 manifold and is there any porting siameseing that can be doen on the lt1 manifold?...thanks guys!!

 

quick question...with the lt1 manifold what cam would be better suited to it...the lt1 cam or comp cams xr252-hr-10

int lift .472
exh lift .480
lobe center 110
252 int duration
254 exh duration


one thing im not to sure of...i know what lift and duration is but how does lobe seperation acceft the cam?...the lobe serparation is the degrees from the center of one lobe to the next correct?..and how does differnt angles affect idle power etc...

most of the cams i see have 110 to 114 whats the differece?

 

lt4 hot cam would be sweet with a lt1 intake setup. Thats what im wanting to put in later. My lt1 is almost ready to run. Alls I need to is hook up new battery cables and run my collant lines and I should be ready to go. Im still waiting on my battery and battery bow to put it in the hatch area.

 

its a 305 so with my stock rockers it wont be as bad cuz its made for a bigger motor
im going to port my heads to make better use of the new intake
and cam..
what about siameseing the stock runners

 

You should probably do all that stuff if you're gonna build a 400 horse 305.

 

due to many restrictions im not goin for 400 ...i tossed that number out there to see wha tit would take....right now im lookin at 325-350 and with a cam ported heads and a lt1 intake i think ill be there....so should i keep the stock rockers or go after 1.6's and diffeernet valvecovers

 

will a 305 be able to pull a lt1 manifold with a comp cams xr 252 and fully ported heads

 

like the subject says