which motor is better for a TT?

[scott5]

I decided i am going with a TT setup and now i am wondering which motor would a tt kit work the best on a pushrod or a mod motor? I have the 302 now and was thinking about it and thinking i would get more out of amod motor so i started looking around for a 96-01 cobra. What are yins imputs?

[phillysrt4]

I would say "it depends"

I've always been a fan of OHC setups, so I would go with a mod motor. regardless of which motor you go with, the parts making up the twin turbo kit are going to be relatively the same with respect to turbo size and intercooler (the most expensive parts of a TT setup). To me, it comes down to the age old question:

How fast do you want to spend?

[somethingclever]

I decided i am going with a TT setup and now i am wondering which motor would a tt kit work the best on a pushrod or a mod motor? I have the 302 now and was thinking about it and thinking i would get more out of amod motor so i started looking around for a 96-01 cobra. What are yins imputs?

I think it should go as follows:

1.) Shortblock: Keep the 302 for increased displacement – however take the factory piston's and bolt a .250 thick steel plate (321ss) on top of all (8) pistons to raise compression to 18:1 (more on this later)

2.) Heads: Find one 96 cobra head (drivers side) and one 5.4 2000 Cobra R head (pass side) – remove both your 302 heads and put these DOHC heads on in place of them. Be sure to keep your stock 302 cam in there as well (more on this later)

3.) Intake – Use a 2JZ intake manifold…ported and polished with twin 03 cobra T/B’s

4.) Turbo Kit – Buy Viper Ed’s single kit

Now for the kicker to put you ahead of the pack: Remove all spark plugs in the DOHC heads…and get them machined for a 5th valve….This will be an additional exhaust valve to help spool up…you will be at full spool by 2k rpm easy. Use the 302 cam (see item 2) to operate this exhaust valve for…….yes that’s right……….a 5 cam setup. This little trick will be worth an easy 100hp.

But you’re going to ask…well if I remove the spark plugs to put in a 5th valve/cyl, what about the spark plugs??? Well glad you asked…that’s the beauty of it really…(see item #1)…the increased compression of the steel plate on each piston will negate the need for spark ignition…as now the compression alone will be enough to ignite the mixture.


Let me know your thoughts…..

[393rag]

I think it should go as follows:

1.) Shortblock: Keep the 302 for increased displacement – however take the factory piston's and bolt a .250 thick steel plate (321ss) on top of all (8) pistons to raise compression to 18:1 (more on this later)

2.) Heads: Find one 96 cobra head (drivers side) and one 5.4 2000 Cobra R head (pass side) – remove both your 302 heads and put these DOHC heads on in place of them. Be sure to keep your stock 302 cam in there as well (more on this later)

3.) Intake – Use a 2JZ intake manifold…ported and polished with twin 03 cobra T/B’s

4.) Turbo Kit – Buy Viper Ed’s single kit

Now for the kicker to put you ahead of the pack: Remove all spark plugs in the DOHC heads…and get them machined for a 5th valve….This will be an additional exhaust valve to help spool up…you will be at full spool by 2k rpm easy. Use the 302 cam (see item 2) to operate this exhaust valve for…….yes that’s right……….a 3 cam setup. This little trick will be worth an easy 100hp.

But you’re going to ask…well if I remove the spark plugs to put in a 5th valve/cyl, what about the spark plugs??? Well glad you asked…that’s the beauty of it really…(see item #1)…the increased compression of the steel plate on each piston will negate the need for spark ignition…as now the compression alone will be enough to ignite the mixture.


Let me know your thoughts…..

You lost me here...but it sounds really awesome.

[scott5]

I think it should go as follows:

1.) Shortblock: Keep the 302 for increased displacement – however take the factory piston's and bolt a .250 thick steel plate (321ss) on top of all (8) pistons to raise compression to 18:1 (more on this later)

2.) Heads: Find one 96 cobra head (drivers side) and one 5.4 2000 Cobra R head (pass side) – remove both your 302 heads and put these DOHC heads on in place of them. Be sure to keep your stock 302 cam in there as well (more on this later)

3.) Intake – Use a 2JZ intake manifold…ported and polished with twin 03 cobra T/B’s

4.) Turbo Kit – Buy Viper Ed’s single kit

Now for the kicker to put you ahead of the pack: Remove all spark plugs in the DOHC heads…and get them machined for a 5th valve….This will be an additional exhaust valve to help spool up…you will be at full spool by 2k rpm easy. Use the 302 cam (see item 2) to operate this exhaust valve for…….yes that’s right……….a 3 cam setup. This little trick will be worth an easy 100hp.

But you’re going to ask…well if I remove the spark plugs to put in a 5th valve/cyl, what about the spark plugs??? Well glad you asked…that’s the beauty of it really…(see item #1)…the increased compression of the steel plate on each piston will negate the need for spark ignition…as now the compression alone will be enough to ignite the mixture.


Let me know your thoughts…..

i am definetly lost

[George C]

I think it should go as follows:

1.) Shortblock: Keep the 302 for increased displacement – however take the factory piston's and bolt a .250 thick steel plate (321ss) on top of all (8) pistons to raise compression to 18:1 (more on this later)

2.) Heads: Find one 96 cobra head (drivers side) and one 5.4 2000 Cobra R head (pass side) – remove both your 302 heads and put these DOHC heads on in place of them. Be sure to keep your stock 302 cam in there as well (more on this later)

3.) Intake – Use a 2JZ intake manifold…ported and polished with twin 03 cobra T/B’s

4.) Turbo Kit – Buy Viper Ed’s single kit

Now for the kicker to put you ahead of the pack: Remove all spark plugs in the DOHC heads…and get them machined for a 5th valve….This will be an additional exhaust valve to help spool up…you will be at full spool by 2k rpm easy. Use the 302 cam (see item 2) to operate this exhaust valve for…….yes that’s right……….a 3 cam setup. This little trick will be worth an easy 100hp.

But you’re going to ask…well if I remove the spark plugs to put in a 5th valve/cyl, what about the spark plugs??? Well glad you asked…that’s the beauty of it really…(see item #1)…the increased compression of the steel plate on each piston will negate the need for spark ignition…as now the compression alone will be enough to ignite the mixture.


Let me know your thoughts…..

yes this is the way to go!

[2001GTTT]

f*** it scott....just build a 5.4L twin turbo.....nothing will touch you...lol

[SonofaBish]

f*** it scott....just build a 5.4L twin turbo.....nothing will touch you...lol

except you'll still be looking at my taillights!! hehe

[Rodeheaver's]

except you'll still be looking at my taillights!! hehe

I'm your huckleberry, why thats just my game

[George C]

except you'll still be looking at my taillights!! hehe

how is that possible?

[SonofaBish]

how is that possible?

stfu someday

[George C]

stfu someday

well make that someday soon....

[Killercanary]

I decided i am going with a TT setup and now i am wondering which motor would a tt kit work the best on a pushrod or a mod motor? I have the 302 now and was thinking about it and thinking i would get more out of amod motor so i started looking around for a 96-01 cobra. What are yins imputs?

Scott, before this question can be answered, I need to know what kind of power do you want to make, is there a certain 1/4 mile time/mph that you want, will the car be a DD or a a street/strip only car? Will you buying a new car or trying to do this with the car you have?

I've been through this myself recently so I should be able to give you some insite once I know what you want.

[George C]

kicker!!!!

stick with the winsor based motor, what your wanting to do been done over and over again. dont try and invent the wheel, do what has been proven. 500rwhp in a fox or sn95 isplenty. its about 300 more then you could probably handle without killing yoruself